Works (119)

Updated: November 18th, 2024 00:20

2024 journal article

Estimation of genotype by environmental interaction for litter traits by reaction norm model in Taiwan Landrace sows

JOURNAL OF ANIMAL SCIENCE, 102.

By: K. Lin n, B. Flowers n, M. Knauer n & E. Lin*

author keywords: Landrace; litter traits; reaction norm model; heat stress
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 19, 2024

2024 magazine article

Feasibility of feeding altrenogest to gilts not responding to boar exposure

Beltranena, E., & Flowers, W. L. (2024, January). Swine Extension Newsletter.

By: E. Beltranena & W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2024 magazine article

Potential “Benchmarks” for sow longevity

Benchmark, (Spring Edition), 5–6.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2024 article

The effect of temperature-humidity index in different pregnancy stages on litter traits in Taiwan Landrace sows

Lin, K.-H., Flowers, B., Jiang, J., Knauer, M., & Lin, E.-C. (2024, May 5). JOURNAL OF ANIMAL SCIENCE, Vol. 102, pp. 20–20.

By: K. Lin n, B. Flowers n, J. Jiang n, M. Knauer n & E. Lin*

author keywords: Landrace; litter traits; pregnancy stages,temperature-humidity index; Taiwan
Sources: Web Of Science, NC State University Libraries
Added: May 20, 2024

2023 article

Adrenomedullin Stimulates Proliferation, Migration and Adhesion of Porcine Trophectoderm Cells Via CALCRL-AKT-TSC2-MTORC1 Cell Signaling Pathway

Liu, B., Paudel, S., Flowers, W. L., Piedrahita, J. A., & Wang, X. (2023, May). JOURNAL OF ANIMAL SCIENCE, Vol. 101.

By: B. Liu n, S. Paudel n, W. Flowers n, J. Piedrahita n & X. Wang n

author keywords: adrenomedullin; peri-implantation; pig conceptus
TL;DR: Results suggest that porcine ADM in histotroph act on its receptor component CALCRL to activate AKT-TSC2-MTOR, particularly MTORC1 signaling cascade, leading to elongation, migration and attachment of conceptuses. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: March 4, 2024

2023 article

Biological and Management Factors Affecting Colostrum Intake and Pre-Weaning Survival in Piglets

Jenkins, A. K., & Flowers, W. L. (2023, October 28). JOURNAL OF ANIMAL SCIENCE, Vol. 101, pp. 29–30.

By: A. Jenkins n & W. Flowers n

author keywords: colostrum intake; immunocrit; pre-weaning survival
TL;DR: Results indicate that low birth weight, lethargic, and chilled piglets were the most at-risk for low colostrum consumption and increased pre-weaning mortality. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: December 18, 2023

2023 magazine article

Colostrum is more important than we thought

Flowers, W. L. (2023, August). Swine Extension Newsletter.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2023 magazine article

Renovations at the N.C. State University Swine Educational Unit

Flowers, W. L. (2023, December). Swine Extension Newsletter.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2023 magazine article

Understanding the physiology associates with reproductive losses

Flowers, W. L. (2023, July). Swine Extension Newsletter.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2023 journal article

Uterine histotroph and conceptus development: III. Adrenomedullin stimulates proliferation, migration and adhesion of porcine trophectoderm cells via AKT-TSC2-MTOR cell signaling pathway

Amino Acids, 55(6), 743–756.

By: B. Liu n, S. Paudel n, W. Flowers n, J. Piedrahita n & X. Wang n

author keywords: Adrenomedullin; Trophectoderm cells; MTOR; Pigs; Implantation
MeSH headings : Pregnancy; Female; Swine; Animals; Proto-Oncogene Proteins c-akt / genetics; Proto-Oncogene Proteins c-akt / metabolism; Adrenomedullin / pharmacology; Signal Transduction; TOR Serine-Threonine Kinases / genetics; TOR Serine-Threonine Kinases / metabolism; Cell Proliferation; Sirolimus / pharmacology
TL;DR: Results suggest that porcine ADM in histotroph acts on its receptor component CALCRL to activate AKT-TSC2-MTOR, particularly MTORC1 signaling cascade, leading to elongation, migration and attachment of conceptuses. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: April 24, 2023

2022 magazine article

Factors affecting colostrum intake in piglets

Jenkins, A. K., & Flowers, W. L. (2022, May). N.C.S.U. Swine Extension Newsletter.

By: A. Jenkins & W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2022 magazine article

Important guidelines for assisting sows during farrowing

Flowers, W. L. (2022, May). Pork Magazine, 6–8.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2022 journal article

Litter‐of‐origin traits and their association with lifetime productivity in sows and boars

Molecular Reproduction and Development, 90(7), 585–593.

By: W. Flowers n

author keywords: fertility; litter-of-origin; swine
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: April 4, 2022

2022 magazine article

Take a closer look at the umbilical cord and the color of piglets at farrowing

Flowers, W. L. (2022, March). N.C.S.U. Swine Extension Newsletter.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2022 magazine article

What sows tell us with their behaviors during farrowing

Flowers, W. L. (2022, April). N.C.S.U. Swine Extension Newsletter.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2021 journal article

Factors affecting the production of quality ejaculates from boars

Animal Reproduction Science, 246, 106840.

By: W. Flowers n

author keywords: Spermatogenesis; Fertility
MeSH headings : Humans; Swine; Male; Animals; Semen Analysis / veterinary; Semen / physiology; Spermatozoa / physiology; Spermatogenesis / physiology; Sertoli Cells
TL;DR: The seasonal effect on depression in semen quality is the most significant factor affecting production of acceptable quality ejaculates after puberty and identification of genes associated with heat-tolerant phenotypes holds promise for addressing this challenge. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: January 17, 2023

2020 journal article

Dietary lysine-to-energy ratios for managing growth and pubertal development in replacement gilts

Applied Animal Science, 36(5), 701–714.

By: C. Lents*, C. Supakorn*, A. DeDecker, C. Phillips, R. Boyd n, J. Vallet*, G. Rohrer*, G. Foxcroft* ...

author keywords: gilt; growth; puberty; diet; lysine
TL;DR: Reducing SID lysine–to–ME ratios in gilt diets can increase the number of gilts within optimal BW range at first estrus, but overall pubertal development is delayed if ratios are reduced below 2.8 and 2.1 g in grower and finisher diets, respectively. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: October 26, 2020

2020 article

Effects of birth characteristics, nursing behaviors, and supplemental milk on piglet pre-weaning growth and survival

Clemons, C. M., & Flowers, W. (2020, November). JOURNAL OF ANIMAL SCIENCE, Vol. 98, pp. 213–213.

By: C. Clemons n & W. Flowers n

author keywords: piglet; supplemental milk; pre-weaning growth and survival
Sources: Web Of Science, NC State University Libraries
Added: February 8, 2021

2020 journal article

Evidence for recombination variability in purebred swine populations

Journal of Animal Breeding and Genetics, 138(2), 259–273.

By: E. Lozada‐Soto n, C. Maltecca n, H. Wackel n, W. Flowers n, K. Gray, Y. He n, Y. Huang, J. Jiang n, F. Tiezzi n

Contributors: E. Lozada-Soto n, C. Maltecca n, H. Wackel n, W. Flowers n, K. Gray, Y. He n, Y. Huang, J. Jiang n, F. Tiezzi n

author keywords: genetic variance; recombination rate; selection; swine
MeSH headings : Animals; Female; Genome; Genomics; Male; Phenotype; Recombination, Genetic; Swine
TL;DR: Evidence of variability for recombination in purebred swine populations is provided, with differences found for sex, breed, sex-breed interaction, and age effects for genome-wide recombination rate and RO at one or more chromosomes. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries, ORCID
Added: September 26, 2020

2020 article

Reproductive management of swine

ANIMAL AGRICULTURE: SUSTAINABILITY, CHALLENGES AND INNOVATIONS, pp. 283–297.

By: W. Flowers n

TL;DR: Birthweight and weaning weights appear to have strong positive relationship lifetime sperm and piglet production in boars and sows, respectively and delaying training for semen collection towards the end of their pubertal development appears to be beneficial for lifetime productivity in boar productivity. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: June 8, 2020

2020 journal article

Reproductive performance of sows associated with single, fixed-time insemination programs in commercial farms based on either average herd weaning-to-estrus intervals or postweaning estrous activity

APPLIED ANIMAL SCIENCE, 36(1), 100–107.

By: D. Dillard n & W. Flowers n

author keywords: swine; fertility; artificial insemination
TL;DR: Use of either proestrus or estrus as the criterion for intravaginal administration of triptorelin and the subsequent fixed-time AI in herds with extended or variable weaning-to-estrus intervals was effective in terms of maintaining reproductive performance equivalent to conventional AI strategies. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: June 22, 2020

2020 journal article

Transcriptome analysis identifies genes and co-expression networks underlying heat tolerance in pigs

BMC GENETICS, 21(1).

By: Y. He n, C. Maltecca n, F. Tiezzi n, E. Soto n & W. Flowers n

Contributors: Y. He n, C. Maltecca n, F. Tiezzi n, E. Soto n & W. Flowers n

author keywords: Heat stress; Boar sperm quality; Gene expression; Heat tolerance
MeSH headings : Animals; Gene Ontology; Gene Regulatory Networks; Heat-Shock Response / genetics; Male; Semen Analysis; Swine / genetics; Thermotolerance / genetics; Transcriptome
TL;DR: The sensitivity of semen to heat stress is utilized to discriminate the heat-tolerance ability of pigs and provide potential biomarkers for future investigations on the reproductive performance of pigs. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: May 18, 2020

2019 conference paper

Managing sows and boars for lifetime productivity: Recent developments in reproduction and A.I

Proceedings, Ensminger International Swine Conference, 15–21.

By: W. Flowers

Event: nsminger International Swine Conference

Source: NC State University Libraries
Added: November 9, 2024

2019 conference paper

Neonatal management and sow longevity

London Swine Conference, Proceedings, 2019, 21–30.

By: W. Flowers

Event: London Swine Conference

Source: NC State University Libraries
Added: November 9, 2024

2019 conference paper

Trouble shooting reproductive problems using records and observations

Proceedings, 2019 London Swine Conference, 35–48.

By: W. Flowers

Event: London Swine Conference

Source: NC State University Libraries
Added: November 9, 2024

2018 magazine article

Factors Affecting CASA Measurements Associated with Semen Quality Estimates

Zaritskiy, D., & Flowers, W. L. (2018, June 26). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-reproduction/factors-affecting-casa-measurements-associated-with-semen-quality-estimates

By: D. Zaritskiy & W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2018 journal article

High mobility group A2 (HMGA2) deficiency in pigs leads to dwarfism, abnormal fetal resource allocation, and cryptorchidism

Proceedings of the National Academy of Sciences, 115(21), 5420–5425.

By: J. Chung n, X. Zhang n, B. Collins n, R. Sper n, K. Gleason n, S. Simpson n, S. Koh n, J. Sommer n ...

author keywords: HMGA2; dwarfism; swine; gene editing; organ size
MeSH headings : Animals; Cryptorchidism / etiology; Cryptorchidism / pathology; Dwarfism / etiology; Dwarfism / pathology; Female; Fetal Diseases / etiology; Fetal Diseases / pathology; Genotype; HMGA2 Protein / deficiency; HMGA2 Protein / genetics; Litter Size; Male; Nuclear Transfer Techniques / veterinary; Pregnancy; Reproduction; Swine; Swine Diseases / etiology; Swine Diseases / pathology
TL;DR: The results show that the effect of HMGA2 with respect to growth regulation is highly conserved among mammals and opens up the possibility of regulating body and organ size in a variety of mammalian species including food and companion animals. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2018 magazine article

How to convert weekly farrowing groups to single batch breeding group

Flowers, W. L. (2018, February 27). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/farrowing/how-to-convert-weekly-farrowing-groups-to-single-batch-breeding-group

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2018 journal article

Occurrence of Staphylococcus aureus in swine and swine workplace environments on industrial and antibiotic-free hog operations in North Carolina, USA: A One Health pilot study

Environmental Research, 163, 88–96.

By: M. Davis*, N. Pisanic*, S. Rhodes*, A. Brown*, H. Keller n, M. Nadimpalli*, A. Christ*, S. Ludwig* ...

author keywords: Staphylococcus aureus; Occupational health; One Health; Swine; Antimicrobial resistance
MeSH headings : Animal Husbandry; Animals; Anti-Bacterial Agents; Humans; Methicillin-Resistant Staphylococcus aureus / isolation & purification; North Carolina; Occupational Exposure; One Health; Pilot Projects; Staphylococcal Infections / veterinary; Staphylococcus aureus; Swine / metabolism; Workplace
TL;DR: IHO swine and the one IHO environment could be a source of potential pathogen exposure to workers, as supported by the detection of multidrug‐resistant S. aureus on 1 industrial and 3 antibiotic‐free hog operations. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

2018 magazine article

Suckling intensity may impact weaning-to-estrus intervals

Flowers, W. L. (2018, March 27). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/suckling-intensity-may-impact-weaning-to-estrus-intervals

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2018 magazine article

Variation in Visual Estimations of Motility by Laboratory Technicians

Flowers, W. L. (2018, April 24). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-reproduction/variation-in-visual-estimations-of-motility-by-laboratory-technicians

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2018 magazine article

What's the effectiveness of OvuGel administration on weaned sows

Dillard, D. S., & Flowers, W. L. (2018, May 22). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-reproduction/what-s-the-effectiveness-of-ovugel-administration-on-weaned-sows

By: D. Dillard & W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2018 magazine article

Why monitoring progesterone is useful breeding management tool

Flowers, W. L. (2018, January 16). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-reproduction/why-monitoring-progesterone-is-useful-breeding-management-tool

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 magazine article

Adopting farrowing SOPs can reduce stillborns

Flowers, W. L. (2017, October 24). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/farrowing/adopting-farrowing-sops-can-reduce-stillborns

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 journal article

An anti-αVβ3 antibody inhibits coronary artery atherosclerosis in diabetic pigs

Atherosclerosis, 258, 40–50.

By: L. Maile*, W. Busby*, G. Xi*, K. Gollahan*, W. Flowers n, N. Gafbacik n, S. Gafbacik n, K. Stewart n ...

UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: October 27, 2024

2017 magazine article

Collection gloves can impair semen quality

Stewart, K., Belstra, B., & Flowers, W. L. (2017, July 25). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/collection-gloves-can-impair-semen-quality

By: K. Stewart, B. Belstra & W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 magazine article

Deciphering ‘people’ versus ‘pig’ problems in boar studs

Flowers, W. L. (2017, April 25). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/deciphering-people-versus-pig-problems-in-boar-studs

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 journal article

Design and biological effects of a vaginally administered gel containing the GnRH agonist, triptorelin, for synchronizing ovulation in swine

THERIOGENOLOGY, 112, 44–52.

By: R. Knox*, K. Stewart*, W. Flowers n, M. Swanson*, S. Webel* & R. Kraeling

author keywords: Al; Fertility; OvuGel; Ovulation; Pig; Synchronization
MeSH headings : Administration, Intravaginal; Animals; Estrus Synchronization / methods; Female; Fertility / drug effects; Fertility Agents, Female; Insemination, Artificial / methods; Insemination, Artificial / veterinary; Ovulation / drug effects; Ovulation Induction / methods; Ovulation Induction / veterinary; Pregnancy; Swine; Triptorelin Pamoate / administration & dosage; Vaginal Creams, Foams, and Jellies / chemistry; Weaning
TL;DR: A novel gel formulation was selected for intravaginal delivery of the GnRH agonist (triptorelin) for synchronizing ovulation in pigs and the optimum time to give a single fixed time AI (SFT-AI) after administration of 200 μg of triptorelin in 1.2% gel (OvuGel®) at 96 h after weaning was tested. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 magazine article

Environmental ‘stressors’ add up to impact boar sperm production

Flowers, W. L. (2017, May 23). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/environmental-stressors-add-up-to-impact-boar-sperm-production

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 journal article

Study shows housing can impact boar sperm production, libido and fertility

National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/study-shows-housing-can-impact-boar-sperm-production-libido-and-fertility

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 journal article

Supplementation of Maternal Diets with Docosahexaenoic Acid and Methylating Vitamins Impacts Growth and Development of Fetuses from Malnourished Gilts

Current Developments in Nutrition, 2(3).

By: H. Lima n, X. Lin n, S. Jacobi n, C. Man n, J. Sommer n, W. Flowers n, A. Blikslager n, L. Gonzalez n, J. Odle n

Contributors: H. Lima n, X. Lin n, S. Jacobi n, C. Man n, J. Sommer n, W. Flowers n, A. Blikslager n, L. Gonzalez n, J. Odle n

author keywords: choline; B-vitamins; epigenetics; intrauterine growth restriction; nutrient restriction; low birth weight
TL;DR: Despite the mobilization of maternal stores, malnourished litters displayed reduced brain development that was fully mitigated by micronutrient supplementation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref, ORCID
Added: August 6, 2018

2017 magazine article

Take a closer look at total born, mummies and stillborns

Flowers, W. L. (2017, February 28). National Hog Farmer Animal Health Newsletter. https://www.nationalhogfarmer.com/hog-health/take-a-closer-look-at-total-born-mummies-and-stillborns

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 magazine article

Temperature variability can be detrimental to boar semen

Flowers, W. L. (2017, June 27). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/temperature-variability-can-be-detrimental-to-boar-semen

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 magazine article

Three production variables help pinpoint reproductive management issues

Flowers, W. L. (2017, March 28). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/3-production-variables-help-pinpoint-reproductive-management-issues

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 conference paper

Transition strategies from Associate degree programs to Bachelor of Science degree programs

Proceedings, Southwest Ontario Pork Conference, 17–21.

By: W. Flowers

Event: Southwest Ontario Pork Conference

Source: NC State University Libraries
Added: November 9, 2024

2017 magazine article

Weaning-to-estrus profiles and breeding with ‘young semen’

Flowers, W. L. (2017, November 27). Weaning-to-estrus profiles and breeding with ‘young semen.’ National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-health/weaning-to-estrus-profiles-and-breeding-with-young-semen-

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2017 magazine article

What are the relationships between semen quality and fertility estimates in stored semen?

Flowers, W. L. (2017, December 26). National Hog Farmer Daily Newsletters. https://www.nationalhogfarmer.com/hog-reproduction/what-are-the-relationships-between-semen-quality-and-fertility-estimates-in-stored-semen-

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2016 magazine article

Key management considerations for sow lifetime productivity

National Hog Farmer Blueprint Series, 77, 4–8.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2016 conference paper

Master of Animal Science (Distance Education):A viable option for advanced studies for swine industry professionals

Proceedings, N.C. Sow Longevity Conference, 16–21.

By: W. Flowers

Event: N.C. Sow Longevity Conference at Clinton, N.C

Source: NC State University Libraries
Added: November 9, 2024

2016 journal article

Use of heterospermic inseminations and paternity testing to evaluate the relative contributions of common sperm traits and seminal plasma proteins in boar fertility

ANIMAL REPRODUCTION SCIENCE, 174, 123–131.

By: W. Flowers n, F. Deller & K. Stewart*

author keywords: Seminal plasma proteins; Sperm quality; Fertility; Boars
MeSH headings : Animals; Female; Fertility / genetics; Fertility / physiology; Insemination, Artificial / veterinary; Male; Pregnancy; Semen / physiology; Spermatozoa / physiology; Swine / genetics; Swine / physiology
TL;DR: It is demonstrated that heterospermic inseminations and subsequent paternity testing is an effective technique for defining relationships between common semen quality tests and fertility, especially in situations where reproductive performance of all the boars is high. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 magazine article

Birthweight, neonatal management and sow longevity potential

National Hog Farmer Blueprint Series, 73, 6–11.

By: B. Flowers, J. Vallet & J. Cassady

Source: NC State University Libraries
Added: November 9, 2024

2015 article

Effect of dietary copper amount and source on copper metabolism and oxidative stress of weanling pigs in short-term feeding

Huang, Y. L., Ashwell, M. S., Fry, R. S., Lloyd, K. E., Flowers, W. L., & Spears, J. W. (2015, June). JOURNAL OF ANIMAL SCIENCE, Vol. 93, pp. 2948–2955.

By: Y. Huang*, M. Ashwell n, R. Fry n, K. Lloyd n, W. Flowers n & J. Spears n

author keywords: copper; copper metabolism; oxidative stress; pigs
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Antioxidants / metabolism; Chlorides / pharmacology; Copper / metabolism; Copper Sulfate / pharmacology; Diet / veterinary; Dietary Supplements; Duodenum / metabolism; Gene Expression Regulation; Ileum / metabolism; Intestinal Mucosa / metabolism; Jejunum / metabolism; Liver / metabolism; Male; Malondialdehyde / metabolism; Oxidative Stress / drug effects; RNA, Messenger / genetics; RNA, Messenger / metabolism; Swine / physiology
TL;DR: Feeding weanling pigs increased Cu resulted in modulation of duodenal and liver at the transcription level, and when fed at 225 mg Cu/kg diet, TBCC may cause less oxidative stress in the duodenum than CuSO4. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Factors Affecting the Efficient Production of Boar Sperm

Reproduction in Domestic Animals, 50(S2), 25–30.

By: W. Flowers n

MeSH headings : Animals; Animals, Newborn / physiology; Birth Weight; Environment; Male; Nutritional Requirements; Nutritional Status; Photoperiod; Spermatogenesis / physiology; Spermatozoa / physiology; Swine; Temperature; Weaning
TL;DR: Birthweight appears to hold promise as a prospective screening tool as it appears to have a strong positive relationship with adult sperm production, and several deficiencies in several of these areas are common in commercial studs and have additive, negative effects on sperm production. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2015 journal article

How to communicate with undergraduate students that lack an animal science or agricultural background

Animal Frontiers, 5(3), 54–59.

By: J. Parrish*, M. Smith*, R. Geisert*, D. Davis*, M. Wilson* & W. Flowers n

UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: November 9, 2024

2014 journal article

Blocking Ligand Occupancy of the alpha V beta 3 Integrin Inhibits the Development of Nephropathy in Diabetic Pigs

ENDOCRINOLOGY, 155(12), 4665–4675.

By: L. Maile*, W. Busby*, K. Gollahon*, W. Flowers n, N. Garbacik n, S. Garbacik n, K. Stewart n, T. Nichols* ...

MeSH headings : Animals; Antibodies, Monoclonal; Diabetic Nephropathies / etiology; Diabetic Nephropathies / metabolism; Diabetic Nephropathies / pathology; Glomerular Basement Membrane / pathology; Integrin alphaVbeta3 / antagonists & inhibitors; Integrin alphaVbeta3 / metabolism; Male; Mice, Inbred BALB C; Podocytes / pathology; Proteinuria / etiology; Swine
TL;DR: Administration of an antibody that inhibits activation of the β3-subunit of αVβ3 that is induced by hyperglycemia attenuates proteinuria and early histologic changes of diabetic nephropathy, suggesting that it may have utility in preventing the progression of this disease complication. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 journal article

Effect of gonadotropin releasing factor suppression with an immunological on growth performance, estrus activity, carcass characteristics, and meat quality of market gilts

JOURNAL OF ANIMAL SCIENCE, 92(10), 4719–4724.

By: B. Bohrer*, W. Flowers n, J. Kyle*, S. Johnson*, V. King*, J. Spruill*, D. Thompson*, A. Schroeder*, D. Boler*

author keywords: estrus suppression; gilt; gonadotropin releasing factor; Improvest
MeSH headings : Animals; Body Composition / drug effects; Body Weight / physiology; Estrus; Female; Gonadotropin-Releasing Hormone / pharmacology; Meat / standards; Sexual Maturation / drug effects; Swine / physiology
TL;DR: Data suggest market gilts treated with an anti-GnRF analog had suppressed estrus and episodical changes in ADFI, while they had improved feed efficiency, increased ADG, and increased back fat depth when compared with gilts without anAnti-GNRF analog treatment. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 journal article

Effects of methylating vitamins and docosahexaenoic acid supplementation on intra‐uterine growth retardation in a feed‐restricted swine model (1033.8)

The FASEB Journal, 28(S1).

By: H. Lima n, S. Jacobi n, C. Man n, K. Walker n, J. Sommer n, W. Flowers n, A. Blikslager n, L. Xi n, J. Odle n

UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 20, 2022

2014 conference paper

Factor affecting sow longevity on commercial farms

Proceedings, 2014 Banff Pork Conference, 17–24.

By: W. Flowers

Event: 2014 Banff Pork Conference

Source: NC State University Libraries
Added: November 9, 2024

2014 report

National Swine Reproduction Guide

U.S. Pork Center of Excellence.

By: D. Levis, B. Baker, M. Estienne, W. Flowers, M. Knauer, R. Knox, T. Safranski, W. Singleton, K. Stalder

Source: NC State University Libraries
Added: November 9, 2024

2013 journal article

Animal Frontiers fertility issue: Sex education that everyone needs to understand

Animal Frontiers, 3(4), 4–5.

By: W. Flowers n

UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: October 26, 2024

2013 chapter

Boar seminal plasma proteins and their relevance to reproductive technologies

In H. Rodriquez-Martinez, N. M. Soede, & W. L. Flowers (Eds.), Control of Pig Reproduction IX (pp. 33–45). Nottingham, England, U.K: Context Limited.

By: W. Flowers, K. Stewart, T. Gall, S. Novak, M. Dyck & R. Kirkwood

Ed(s): H. Rodriquez-Martinez, N. Soede & W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2013 journal article

Effect of dietary selenium on boar sperm quality

Animal Reproduction Science, 138(3-4), 268–275.

By: K. Lovercamp n, K. Stewart n, X. Lin n & W. Flowers n

author keywords: Boar; Selenium; Sperm; Lipid peroxidation; Glutathione peroxidise
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena / drug effects; Animals; Cell Shape / drug effects; Dietary Supplements; Fatty Acids / analysis; Fatty Acids / metabolism; Glutathione Peroxidase / analysis; Glutathione Peroxidase / metabolism; Lipid Peroxidation / drug effects; Male; Selenium / administration & dosage; Selenium / analysis; Semen / chemistry; Semen / cytology; Semen / drug effects; Semen / metabolism; Semen Analysis / veterinary; Semen Preservation / veterinary; Swine / metabolism; Swine / physiology
TL;DR: Results indicate that supplementing a basal diet with organic or inorganic selenium did not affect semen quantity or sperm quality in fresh ejaculates nor did it appear to have any beneficial latent effects in extended semen stored post collection. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2013 journal article

Effect of social ranks and gestation housing systems on oxidative stress status, reproductive performance, and immune status of sows1

Journal of Animal Science, 91(12), 5848–5858.

By: Y. Zhao n, W. Flowers n, A. Saraiva n, K. Yeum* & S. Kim n

Contributors: Y. Zhao n, W. Flowers n, A. Saraiva n, K. Yeum* & S. Kim n

author keywords: oxidative stress; reproductive performance; social rank; sow
MeSH headings : Aggression; Animals; Body Weight; Colostrum / chemistry; Female; Housing, Animal; Immunoglobulin G / blood; Immunoglobulin G / chemistry; Immunoglobulin M / blood; Immunoglobulin M / chemistry; Oxidative Stress / physiology; Pregnancy; Reproduction / physiology; Social Dominance; Swine / blood; Swine / immunology; Swine / physiology
TL;DR: The reproductive performance of sows from all of the social ranks was related to their oxidative stress status during gestation and lactation, and the immune status did not differ between sows housed in gestational crates (CON), pens (HR + MR + LR). (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018

2013 journal article

Triennial Reproduction Symposium: Sperm characteristics that limit success of fertilization

Journal of Animal Science, 91(7), 3022–3029.

By: W. Flowers n

author keywords: fertility; livestock; male; sperm
MeSH headings : Animals; Cattle / physiology; Female; Fertility; Fertilization; Male; Sheep, Domestic / physiology; Sperm-Ovum Interactions; Spermatozoa / physiology; Sus scrofa / physiology
TL;DR: Current industry estimates of reproductive performance for cattle, sheep, and swine operations indicate that males contribute significantly to fertility failures and emphasizes the need for additional research in identifying characteristics of sperm that compromise fertilization. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2012 journal article

Amount and source of dietary copper affects small intestine morphology, duodenal lipid peroxidation, hepatic oxidative stress, and mRNA expression of hepatic copper regulatory proteins in weanling pigs

JOURNAL OF ANIMAL SCIENCE, 90(9), 3112–3119.

By: R. Fry n, M. Ashwell n, K. Lloyd n, A. O'Nan n, W. Flowers n, K. Stewart n, J. Spears n

author keywords: copper; copper proteins; mucosal histology; oxidative stress; pigs
MeSH headings : Animals; Copper / metabolism; Copper / pharmacology; Duodenum / drug effects; Duodenum / metabolism; Gene Expression Regulation / drug effects; Intestinal Mucosa / drug effects; Lipid Peroxidation / drug effects; Liver / metabolism; Male; Malondialdehyde / metabolism; Oxidative Stress / drug effects; RNA, Messenger / genetics; RNA, Messenger / metabolism; Real-Time Polymerase Chain Reaction / veterinary; Swine / blood; Swine / metabolism
TL;DR: Results of this study indicated that, when fed at 225 mg Cu/kg diet, TBCC may cause less oxidative stress in the duodenum than CuSO(4), and feeding weanling pigs increased Cu resulted in modulation of certain Cu transporters and chaperones at the transcription level. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 conference paper

Possible physiological benchmarks for sow longevity prior to puberty

Proceedings, 2012 Al Leman Swine Conference, 14–21.

By: W. Flowers

Event: 2012 Al Leman Swine Conference

Source: NC State University Libraries
Added: November 9, 2024

2011 journal article

Breed differences in pig temperament scores during a performance test and their phenotypic relationship with performance

LIVESTOCK SCIENCE, 136(2-3), 93–101.

By: C. Yoder n, C. Maltecca n, J. Cassady n, W. Flowers n, S. Price & M. See n

Contributors: C. Yoder n, C. Maltecca n, J. Cassady n, W. Flowers n, S. Price & M. See n

author keywords: Breed; Performance; Pigs; Temperament
TL;DR: Nucleus populations of Chester White, Duroc, Landrace, and Yorkshire boars and gilts were used to estimate breed differences in temperament and the relationship with performance, and vocal score was best described as two categories, vocal or non-vocal. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2011 journal article

Effects of stress associated with weaning on the adaptive immune system in pigs

JOURNAL OF ANIMAL SCIENCE, 90(2), 649–656.

By: A. Kick n, M. Tompkins n, W. Flowers n, C. Whisnant n & G. Almond n

author keywords: cortisol; immune cell; pig; weaning
MeSH headings : Adaptive Immunity / immunology; Animals; Animals, Suckling / blood; Animals, Suckling / immunology; B-Lymphocytes / immunology; Blood Cell Count / veterinary; Body Weight / immunology; Female; Flow Cytometry / veterinary; Hydrocortisone / blood; Least-Squares Analysis; Male; Neutrophils / immunology; Random Allocation; Swine / blood; Swine / immunology; T-Lymphocytes / immunology; Weaning
TL;DR: Early weaning did not negatively affect the adaptive immunological competence of pigs as determined by changes in populations of immune cells, and lymphocyte concentrations were less in weaned pigs on the day after weaning than in pigs remaining on the sow or weaned at a younger age. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 conference paper

Managing gene by environment interactions on reproductive performance of replacement gilts and boars through pre-weaning management at multiplication level – is this a reality?

Proceedings, 2011 Al Leman Swine Conference, 14–21.

By: W. Flowers

Event: 2011 Al Leman Swine Conference

Source: NC State University Libraries
Added: November 9, 2024

2011 magazine article

Physiology of 30+ Pigs/Sow/year

National Hog Farmer Blueprint Series, 53, 5–17.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2011 conference paper

Twenty-years of the Food Animal Scholars program – an alternative entry program for undergraduate students

Proceedings, Intervet Canada Partners in Reproduction Seminar Series, 1–5. Canada: InterVet.

By: W. Flowers

Event: Intervet Canada Partners in Reproduction Seminar Series

Source: NC State University Libraries
Added: November 9, 2024

2010 journal article

Effect of season on fresh and cryopreserved stallion semen

Animal Reproduction Science, 119(3-4), 219–227.

By: N. Wrench n, W. Flowers n, C. Farin n, D. Dix*, C. Pinto* & G. Klinefelter*

author keywords: Stallion; Cryopreservation; SP22; mRNA; Season; Semen
MeSH headings : Actins / genetics; Animals; Breeding; Cryopreservation / veterinary; Horses; Hot Temperature; Male; Microtubule-Associated Proteins / analysis; RNA, Messenger / analysis; Reverse Transcriptase Polymerase Chain Reaction; Seasons; Semen Preservation / veterinary; Sperm Motility; Spermatozoa / abnormalities; Spermatozoa / chemistry; Spermatozoa / physiology
TL;DR: Based on data analyzed, semen collected in the Northern Hemisphere between March and June may be best suited for cryopreservation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2010 journal article

Endocrine, ovulatory and reproductive characteristics of sows treated with an intravaginal GnRH agonist

ANIMAL REPRODUCTION SCIENCE, 120(1-4), 112–119.

By: K. Stewart n, W. Flowers n, G. Rampacek*, D. Greger, M. Swanson & H. Hafs

author keywords: Sows-GnRH; Ovulation; Vagina; Weaning
MeSH headings : Administration, Intravaginal; Animals; Endocrine System / drug effects; Endocrine System / physiology; Estradiol / blood; Estrus / blood; Estrus / drug effects; Estrus / metabolism; Estrus Synchronization / drug effects; Estrus Synchronization / methods; Female; Fertility Agents, Female / administration & dosage; Fertility Agents, Female / pharmacology; Gonadotropin-Releasing Hormone / agonists; Luteolytic Agents / administration & dosage; Luteolytic Agents / pharmacology; Ovulation / drug effects; Ovulation / physiology; Ovulation Induction / methods; Ovulation Induction / veterinary; Pregnancy; Reproduction / drug effects; Reproduction / physiology; Swine / physiology; Triptorelin Pamoate / administration & dosage; Triptorelin Pamoate / pharmacology
TL;DR: It is demonstrated that 100microg of triptorelin administered intravaginally in a least 1.2% methyl cellulose gel induced a normal preovulatory LH surge and synchronized time of ovulation in weaned sows. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 conference paper

Gilt development and management: Maximizing sow longevity

Proceedings, Intervet Canada Partners in Reproduction Seminar Series, 5–12, Canada: InterVet.

By: W. Flowers

Event: Intervet Canada Partners in Reproduction Seminar Series

Source: NC State University Libraries
Added: November 9, 2024

2010 magazine article

Increased enrollment in swine management courses

Swine News, 33.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2010 conference paper

Semen handling on the farm

Proceedings, Intervet Canada Partners in Reproduction Seminar Series, 52–56. Canada: InterVet.

By: W. Flowers

Event: Intervet Canada Partners in Reproduction Seminar Series

Source: NC State University Libraries
Added: November 9, 2024

2010 magazine article

Semen handling versus boar problems in the stud

Swine News, 33.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2010 magazine article

Temperature changes in extended semen

Swine News, 33.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

2010 conference paper

Trouble shooting fertility problems

Proceedings, Intervet Canada Partners in Reproduction Seminar Series, 30–38. Canada: InterVet.

By: W. Flowers

Event: Intervet Canada Partners in Reproduction Seminar Series

Source: NC State University Libraries
Added: November 9, 2024

2010 conference paper

Trouble shooting reproductive problems

Proceedings, Banff Pork Seminar. Presented at the Banff Pork Seminar. http://www.banffpork.ca/proceedings.cgi.

By: W. Flowers

Event: Banff Pork Seminar

Source: NC State University Libraries
Added: November 9, 2024

2009 chapter

Biotechnology: Artificial Insemination

In W. G. Pond & A. W. Bell (Eds.), Encyclopedia of Animal Science (pp. 137–139). New York: Marcel Dekker, Inc.

By: W. Flowers

Ed(s): W. Pond & A. Bell

Source: NC State University Libraries
Added: November 9, 2024

2009 chapter

Selection for boar fertility and semen quality – the way ahead

In H. Rodriguez-Martinez, J. L. Vallet, & A. J. Ziecik (Eds.), Control of Pig Reproduction VIII (pp. 67–78). Nottingham, UK: Nottingham University Press.

By: W. Flowers

Ed(s): H. Rodriguez-Martinez, J. Vallet & A. Ziecik

Source: NC State University Libraries
Added: November 9, 2024

2009 chapter

Swine: Reproduction Management

In W. G. Pond & A. W. Bell (Eds.), Encyclopedia of Animal Science (pp. 829–831). New York: Marcell Dekker, Inc.

By: W. Flowers

Ed(s): W. Pond & A. Bell

Source: NC State University Libraries
Added: November 9, 2024

2008 journal article

Effect of season on sperm membrane protein 22 and selected mRNAs in fresh and cryopreserved stallion sperm

Animal Reproduction Science, 107(3-4), 357.

By: N. Wrench n, C. Pinto n, G. Klinefelter*, D. Dix*, W. Flowers n & C. Farin n

Sources: Crossref, NC State University Libraries
Added: August 28, 2020

2008 article

Genetic and phenotypic variation in reproductive traits of AI boars

Flowers, W. L. (2008, November). THERIOGENOLOGY, Vol. 70, pp. 1297–1303.

By: W. Flowers n

author keywords: Boars; Sexual behaviour; Sperm production; Fertility; Genetics
MeSH headings : Animals; Fertility / genetics; Genetic Variation; Insemination, Artificial / veterinary; Male; Reproduction / genetics; Reproduction / physiology; Sexual Behavior, Animal; Swine / genetics; Swine / physiology
TL;DR: Current prospects for influencing sperm production, boar fertility, and mounting behaviours through genetic selection are viewed as being good, moderate to low, and poor, respectively. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Porcine sperm zona binding ability as an indicator of fertility

ANIMAL REPRODUCTION SCIENCE, 104(1), 69–82.

By: E. Collins n, W. Flowers n, R. Shanks & D. Miller*

author keywords: pig-fertility; fertilization; heterospermic insemination; sperm; zona pellucida
MeSH headings : Animals; Female; Fertility / physiology; Fertilization in Vitro; Insemination, Artificial / veterinary; Litter Size; Male; Ovum / cytology; Ovum / physiology; Predictive Value of Tests; Pregnancy; Pregnancy, Animal; Sensitivity and Specificity; Sperm-Ovum Interactions / physiology; Spermatozoa / cytology; Spermatozoa / physiology; Swine; Zona Pellucida / physiology
TL;DR: Results suggest that zona binding ability is not an accurate predictor of fertilizing ability when used alone; however, when coupled with other sperm assessments, fertility may be predicted successfully. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 chapter book

Biotechnology: Artificial Insemination

By: W. Flowers*

Sources: Crossref, NC State University Libraries
Added: October 26, 2024

2004 journal article

Effect of dietary trace mineral concentration and source (inorganic vs. chelated) on performance, mineral status, and fecal mineral excretion in pigs from weaning through finishing

Journal of Animal Science, 82(7), 2140–2147.

MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Chelating Agents / pharmacology; Copper / administration & dosage; Copper / metabolism; Dose-Response Relationship, Drug; Feces / chemistry; Female; Iron / administration & dosage; Iron / metabolism; Manganese / administration & dosage; Manganese / metabolism; Nutritional Status; Random Allocation; Swine / growth & development; Swine / metabolism; Trace Elements / administration & dosage; Trace Elements / metabolism; Weaning; Zinc / administration & dosage; Zinc / metabolism
TL;DR: Reducing the concentrations of Zn, Cu, Mn, and Fe typically supplemented to pig diets will greatly decrease fecal mineral excretion without negatively affecting pig performance from weaning through development. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2004 journal article

Factors affecting temporal relationships between estrus and ovulation in commercial sow farms

ANIMAL REPRODUCTION SCIENCE, 84(3-4), 377–394.

By: B. Belstra n, W. Flowers n & M. See n

Contributors: B. Belstra n, W. Flowers n & M. See n

author keywords: estrus; ovulation; insemination; seasonal infertility; sows
MeSH headings : Animal Husbandry / methods; Animals; Estrus / physiology; Estrus Detection; Female; Genotype; Insemination, Artificial / physiology; Lactation / physiology; Least-Squares Analysis; Male; Ovulation / physiology; Ovulation Detection / veterinary; Parity / physiology; Pregnancy; Seasons; Swine / physiology; Time Factors; Weaning
TL;DR: The data indicate that factors other than weaning-to-estrus interval, such as season and parity, can significantly alter DE and EOI, however, the effects of season and weaning -to-ESTrus interval on DE andEOI can be inconsistent among different farms. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2004 journal article

Growth performance, carcass characteristics, plasma minerals, and fecal mineral excretion in grower-finisher swine fed diets with levels of trace minerals lower than common industry levels

Journal of Swine Health and Production, 12(5), 237–241.

By: E. Van Heugten, P. O'Quinn, D. Funderburke, W. Flowers & J. Spears

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Urinary excretion of collagen degradation markers by sows during postpartum uterine involution

ANIMAL REPRODUCTION SCIENCE, 85(1-2), 131–145.

By: B. Belstra n, W. Flowers n, W. Croom n, J. DeGroot* & M. See n

Contributors: B. Belstra n, W. Flowers n, W. Croom n, J. DeGroot* & M. See n

author keywords: embryo mortality; lactation; postpartum; sow; uterine involution
MeSH headings : Amino Acids / urine; Animals; Biomarkers / urine; Chromatography, High Pressure Liquid; Collagen / urine; Enzyme-Linked Immunosorbent Assay; Female; Puerperal Disorders / urine; Puerperal Disorders / veterinary; Swine; Swine Diseases / urine; Uterine Diseases / urine; Uterine Diseases / veterinary
TL;DR: Overall, data from experiments I and II indicate that urinary HP does increase postpartum in a pattern temporally consistent with uterine involution, and this data is consistent with a post partum increase of soft tissue collagen catabolism. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
5. Gender Equality (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2003 journal article

Variability in relationships between semen quality and estimates of in vivo and in vitro fertility in boars

ANIMAL REPRODUCTION SCIENCE, 81(1-2), 97–113.

By: J. Popwell* & W. Flowers n

author keywords: boar; semen quality; fertilization
MeSH headings : Acrosome / ultrastructure; Animals; Female; Fertility; Fertilization in Vitro / veterinary; Insemination, Artificial / veterinary; Litter Size; Male; Pregnancy; Pregnancy Outcome; Semen / physiology; Sperm Head / ultrastructure; Sperm Motility; Sperm Tail / ultrastructure; Sperm-Ovum Interactions; Swine / physiology
TL;DR: The results demonstrate that simply relying on the means of common semen quality estimates from some boars has limited value in terms of being used as a prospective indicator of their in vivo or in vitro fertility. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2002 journal article

Iron methionine as a source of iron for the neonatal pig

NUTRITION RESEARCH, 22(10), 1209–1217.

By: E. Kegley*, J. Spears n, W. Flowers n & W. Schoenherr n

author keywords: iron; anemia; pig
TL;DR: Iron methionine given orally was a safe, effective source of Fe, but a single oral dose of FeMet was not equivalent to injectable Fe, and utilization was greatest when given at 3 d compared to at birth. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2002 journal article

Long-term effects of boron supplementation on reproductive characteristics and bone mechanical properties in gilts

Journal of Animal Science, 80(1), 154–161.

By: T. Armstrong n, B. Flowers n, J. Spears n & F. Nielsen*

MeSH headings : Animal Nutritional Physiological Phenomena; Animals; Biomechanical Phenomena; Bone and Bones / chemistry; Bone and Bones / drug effects; Bone and Bones / physiology; Boron / pharmacology; Dietary Supplements; Female; Male; Random Allocation; Reproduction / drug effects; Reproduction / physiology; Swine / metabolism; Swine / physiology
TL;DR: Results indicate that B may have beneficial effects upon reproductive and bone characteristics in gilts, which may be related to increased bone turnover in B-supplemented gilts. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2000 journal article

Real-time ultrasonography and pregnancy diagnosis in swine

Journal of Animal Science, 77(E-Suppl), 1.

By: W. Flowers n, J. Armstrong*, S. White n, T. Woodard n & G. Almond n

Sources: Crossref, NC State University Libraries
Added: October 17, 2024

1999 journal article

Control of the weaning-to-estrus interval in sows using gonadotropins and prostaglandins during lactation

Journal of Animal Science, 77(9), 2533–2539.

MeSH headings : Animals; Chorionic Gonadotropin / pharmacology; Corpus Luteum / drug effects; Dinoprost / pharmacology; Estrus / drug effects; Female; Lactation; Ovulation Induction; Progesterone / pharmacology; Swine / physiology; Time Factors; Weaning
TL;DR: Results indicate that it is possible to induce ovulation immediately after farrowing, using a single injection of hCG, and this strategy can be used to uncouple weaning from the resumption of reproductive activity. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1998 journal article

Improving boar fertility

Advances in Pork Production, 9(1998), 1–11.

By: B. Flowers

Source: NC State University Libraries
Added: August 6, 2018

1998 journal article

New ideas on boar and sow fertility examined

Feedstuffs, 70(35), 12–131923.

By: W. Flowers

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Genetically engineered large animal model for studying cone photoreceptor survival and degeneration in retinitis pigmentosa

NATURE BIOTECHNOLOGY, 15(10), 965–970.

By: R. Petters n, C. Alexander n, K. Wells n, E. Collins n, . Sommer n, M. Blanton n, G. Rojas n, Y. Hao* ...

author keywords: transgenic swine; retinal degeneration; rhodopsin mutation; night blindness; eye disease
MeSH headings : Animals; Animals, Genetically Modified; Blotting, Southern; Disease Models, Animal; Electroretinography; Embryo Transfer; Gene Expression Regulation / genetics; Genetic Engineering; Microscopy, Electron; Molecular Sequence Data; Phenotype; Polymerase Chain Reaction; Retina / pathology; Retina / physiopathology; Retina / ultrastructure; Retinal Cone Photoreceptor Cells / physiopathology; Retinal Cone Photoreceptor Cells / ultrastructure; Retinal Degeneration / physiopathology; Retinitis Pigmentosa / genetics; Retinitis Pigmentosa / physiopathology; Rhodopsin / chemistry; Rhodopsin / genetics; Swine / embryology; Swine / genetics; Transgenes
TL;DR: These transgenic pigs that express a mutated rhodopsin gene will provide a large animal model for study of the protracted phase of cone degeneration found in RP and for preclinical treatment trials. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1997 conference paper

Management of boars for efficient semen production

In R. D. G. G. R. Foxcroft & C. Doberska (Eds.), Control of pig reproduction V: Proceedings of the Fifth International Conference on Pig Reproduction, held at Congress Centre Rolduc, Kerkrade, The Netherlands, June 1997 (Journal of reproduction and fertility. Supplement; no. 52) (Vol. 52, pp. 67–78).

By: W. Flowers

Ed(s): R. G. R. Foxcroft & C. Doberska

Source: NC State University Libraries
Added: August 6, 2018

1997 chapter

Management of reproduction

In M. A. V. J. Wiseman & J. P. Chadwick (Eds.), Progress in pig science (pp. 383–405). Thrumpton, Nottingham: Nottingham University Press.

By: W. Flowers

Ed(s): M. J. Wiseman & J. Chadwick

Source: NC State University Libraries
Added: August 6, 2018

1995 journal article

Evidence for a local role of inhibin or inhibin   subunits in compensatory ovarian hypertrophy

Reproduction, 104(2), 291–295.

By: B. King n, J. Britt n, K. Esbenshade n, W. Flowers n & J. Ireland n

MeSH headings : Alpha-Globulins; Animals; Corpus Luteum / physiology; Estradiol / blood; Female; Follicle Stimulating Hormone / blood; Hypertrophy; Immunization; Inhibins / immunology; Inhibins / physiology; Luteinizing Hormone / blood; Ovariectomy; Ovary / pathology; Ovary / physiology; Progesterone / blood; Radioimmunoassay; Swine / physiology
TL;DR: It is concluded that inhibin or inhibin α subunits are positive local stimulators of compensatory ovarian hypertrophy in postpubertal gilts independent of alterations in serum hormones, duration of oestrous cycle, or normal ovulation rate per ovary. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1993 journal article

Ovulatory and endocrine responses after active immunization of gilts against a synthetic fragment of bovine inhibin

Journal of Animal Science, 71(4), 975–982.

By: B. King n, J. Britt n, K. Esbenshade n, W. Flowers n, L. Sesti n, T. Martin*, J. Ireland*

author keywords: PIGS; INHIBIN; IMMUNIZATION; OVULATION; OVARIES; REPRODUCTIVE HORMONES
MeSH headings : Animals; Antibody Formation; Estradiol / blood; Estrus; Female; Follicle Stimulating Hormone / blood; Follicle Stimulating Hormone / metabolism; Gonadotropin-Releasing Hormone / pharmacology; Immunization / veterinary; Immunization, Secondary / veterinary; Inhibins / immunology; Inhibins / physiology; Luteinizing Hormone / blood; Luteinizing Hormone / metabolism; Ovulation; Pituitary Gland / drug effects; Pituitary Gland / metabolism; Progesterone / blood; Swine / physiology
TL;DR: Whether neutralizing endogenous inhibin would affect ovulation rate and serum concentrations of FSH, LH, estradiol-17 beta, and progesterone in gilts in INH gilts was determined and antibody titers were estimated. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

1993 journal article

Response of porcine granulosa cells isolated from primary and secondary follicles to FSH, 8-bromo-cAMP and epidermal growth factor in vitro

Reproduction, 99(2), 577–584.

By: D. Morbeck n, W. Flowers n & J. Britt n

TL;DR: A cell culture system was developed to study the function of porcine granulosa cells from primary and secondary follicles and found that treatment with FBS, EGF, and FSH increased DNA ingranulosa cell cultures from secondary but not from primary follicles. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1992 journal article

Artificial insemination in swine

Agri-Practice, 13(2), 36.

By: W. Flowers

Source: NC State University Libraries
Added: August 6, 2018

1992 journal article

Kinetics of Follicle Growth in the Prepubertal Gilt

Biology of Reproduction, 47(3), 485–491.

By: D. Morbeck n, K. Esbenshade n, W. Flowers n & J. Britt n

MeSH headings : Animals; Colchicine / pharmacology; Female; Granulosa Cells / cytology; Kinetics; Mitosis; Oocytes / cytology; Ovarian Follicle / cytology; Ovarian Follicle / drug effects; Ovarian Follicle / physiology; Sexual Maturation; Swine / physiology; Theca Cells / cytology
TL;DR: Eight classes of follicles were established such that the number of granulosa cells per cross section doubled in each class and oocyte diameter increased through the first four classes and reached a maximum diameter of approximately 110 microns. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

1992 journal article

REPRODUCTIVE-PERFORMANCE AND ESTIMATES OF LABOR REQUIREMENTS ASSOCIATED WITH COMBINATIONS OF ARTIFICIAL-INSEMINATION AND NATURAL SERVICE IN SWINE

JOURNAL OF ANIMAL SCIENCE, 70(3), 615–621.

By: W. Flowers n & H. Alhusen

author keywords: PIGS; REPRODUCTION; ARTIFICIAL INSEMINATION; NATURAL MATING
MeSH headings : Age Factors; Animals; Breeding / economics; Copulation; Female; Insemination, Artificial / veterinary; Litter Size; Parity; Random Allocation; Reproduction; Swine / physiology
TL;DR: Results from this study demonstrate that gilts and sows responded differently to combinations of NS andAI in terms of reproductive performance and differences in labor requirements per sow or gilt between NS and AI matings were dependent on parity and daily breeding demands. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1991 journal article

Development of porcine embryos following microsurgical blastomere transplantation

Animal Reproduction Science, 24(3-4), 315–322.

By: M. Martin*, T. Cantley*, W. Flowers* & B. Day*

Sources: Crossref, NC State University Libraries
Added: October 28, 2024

1991 journal article

Effect of cell‐free synchronous uterine flushings and microsurgery on the development of porcine embryos in vitro

Molecular Reproduction and Development, 30(2), 100–104.

By: M. Martin*, T. Cantley*, W. Flowers* & B. Day*

Sources: Crossref, NC State University Libraries
Added: October 27, 2024

1991 journal article

Effects of human chorionic gonadotrophin on contractile activity of steroid-primed pig myometrium in vitro

Reproduction, 92(2), 425–432.

By: B. Flowers n, A. Ziecik & E. Caruolo

MeSH headings : Animals; Chorionic Gonadotropin / pharmacology; Estradiol / pharmacology; Female; Follicle Stimulating Hormone / blood; In Vitro Techniques; Luteinizing Hormone / blood; Myometrium / drug effects; Myometrium / metabolism; Ovariectomy; Progesterone / blood; Progesterone / pharmacology; Receptors, Gonadotropin / drug effects; Swine; Uterine Contraction / drug effects
TL;DR: Results indicate that oestradiol promotes the synthesis of LH/hCG receptors in pig myometrium and incubation of oestrogen-primed tissue with hCG has a quiescent effect on myometrial contractility. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1991 journal article

Episodic secretion of gonadotrophins and ovarian steroids in jugular and utero-ovarian vein plasma during the follicular phase of the oestrous cycle in gilts

Reproduction, 91(1), 101–112.

By: B. Flowers*, T. Cantley, M. Martin & B. Day

Sources: Crossref, NC State University Libraries
Added: October 27, 2024

1991 journal article

Impairment of follicular development by intra-ovarian infusion of gonadotrophin-releasing hormone antiserum in prepubertal pigs

Reproduction, 93(2), 393–398.

By: M. Patton n, K. Esbenshade n & W. Flowers n

MeSH headings : Animals; Female; Follicular Atresia / drug effects; Gonadotropin-Releasing Hormone / immunology; Immune Sera; Organ Size / drug effects; Ovarian Follicle / drug effects; Ovarian Follicle / physiology; Ovary / drug effects; Sexual Maturation / physiology; Swine / physiology
TL;DR: Evidence is provided that a peptide binding to the GnRH antibodies is involved directly in ovarian follicular development and increased the incidence of atresia in follicles with greater than 4 layers of granulosa cells compared with the other treatment groups. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1990 journal article

Alterations in Gonadotropin Secretion and Ovarian Function in Prepubertal Gilts by Elevated Environmental Temperature

Biology of Reproduction, 42(3), 465–471.

By: B. Flowers* & B. Day*

Sources: Crossref, NC State University Libraries
Added: October 27, 2024

1989 journal article

Effect of Elevated Ambient Temperatures on Puberty in Gilts

Journal of Animal Science, 67(3), 779.

By: B. Flowers*, T. Cantley*, M. Martin* & B. Day*

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: October 28, 2024

1989 journal article

Endocrine Changes Associated with a Dietary-Induced Increase in Ovulation Rate (Flushing) in Gilts

Journal of Animal Science, 67(3), 771.

By: B. Flowers*, M. Martin*, T. Cantley* & B. Day*

Sources: Crossref, NC State University Libraries
Added: October 28, 2024

1989 journal article

The effect of pregnant mare serum gonadotropin on follicle stimulating hormone and estradiol secretion in the prepuberal gilt

Animal Reproduction Science, 21(2), 93–100.

By: B. Flowers*, M. Martin*, T. Cantley* & B. Day*

UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: October 28, 2024

1987 journal article

A Comparison of Effects of Zearalenone and Estradiol Benzoate on Reproductive Function during the Estrous Cycle in Gilts

Journal of Animal Science, 65(6), 1576–1584.

By: B. Flowers*, T. Cantley* & B. Day*

UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: October 28, 2024

1985 journal article

Parturition control in sows with a prostaglandin analogue (alfaprostol)

Theriogenology, 24(1), 13–19.

By: M. Martin*, T. Meisinger*, W. Flowers*, T. Cantley* & B. Day*

Sources: Crossref, NC State University Libraries
Added: October 28, 2024

report

Synchronization of estrus in sows and gilts. Pork Information Gateway Fact Sheet

Flowers, W. L. National Pork Board.

By: W. Flowers

Source: NC State University Libraries
Added: November 9, 2024

Employment

Updated: January 22nd, 2020 11:53

1998 - present

North Carolina State University Raleigh, NC, US
William Neal Reynolds and Alumni Distinguished Professor Animal Science

1993 - 1998

North Carolina State University Raleigh, NC, US
Associate Professor Animal Science

1987 - 1993

North Carolina State University Raleigh, NC, US
Assistant Professor Animal Science

Education

Updated: January 22nd, 2020 10:43

1985 - 1987

University of Missouri Columbia, Missouri, US
Ph.D. Animal Sciences

1982 - 1984

University of Missouri Columbia, Missouri, US
M.S. Animal Sciences

1978 - 1982

Virginia Tech Blacksburg, Virginia, US
B.S. Animal Science

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