Deborah T. Ort

Works (21)

Updated: July 5th, 2023 15:57

2014 article

Improved early performance of turkey poults given anAloe feroxleaf extract with bentonite

Edens, F. W., Ort, D. T., & Ludescher, B. L. (2014, August 19). British Poultry Science.

By: F. Edens n, D. Ort n & B. Ludescher

MeSH headings : Aloe / chemistry; Animal Feed / analysis; Animal Nutritional Physiological Phenomena / drug effects; Animals; Bentonite / metabolism; Bentonite / pharmacology; Diet / veterinary; Dietary Supplements / analysis; Male; Meat / analysis; Plant Extracts / metabolism; Plant Extracts / pharmacology; Plant Leaves / chemistry; Random Allocation; Turkeys / growth & development; Turkeys / metabolism; Weight Gain / drug effects
topics (OpenAlex): Irrigation Practices and Water Management; Animal Nutrition and Physiology; Food Science and Nutritional Studies
TL;DR: AT-402 at 5 g/kg was most efficacious as demonstrated by improved body weights and feed conversions, and delayed access by poults until 10 d of age improved 4-week body weights, suggesting that the AT-402 might improve performance as soon as it is given. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2008 article

Broiler embryo bone development is influenced by incubator temperature, oxygen concentration and eggshell conductance at the plateau stage in oxygen consumption1

Oviedo-Rondón, E. O., Small, J., Wineland, M. J., Christensen, V. L., Mozdziak, P. S., Koci, M. D., … Mann, K. M. (2008, November 1). British Poultry Science, Vol. 49, pp. 666–676.

By: E. Oviedo-Rondón n , J. Small n, M. Wineland n, V. Christensen n, P. Mozdziak n , M. Koci n , S. Funderburk n, D. Ort n, K. Mann n

Contributors: E. Oviedo-Rondón n , J. Small n, M. Wineland n, V. Christensen n, P. Mozdziak n , M. Koci n , S. Funderburk n, D. Ort n, K. Mann n

MeSH headings : Animals; Body Weight; Bone Development / drug effects; Chick Embryo; Chickens / anatomy & histology; Chickens / growth & development; Chickens / metabolism; Egg Shell / physiology; Embryonic Development / drug effects; Femur / anatomy & histology; Incubators; Oxygen / metabolism; Oxygen / pharmacology; Temperature; Tibia / anatomy & histology
topics (OpenAlex): Animal Nutrition and Physiology; Animal Genetics and Reproduction; Aquaculture Nutrition and Growth
TL;DR: The results indicated that elevated TEM during incubation increased RA between the two legs, mainly in the Low G strain, and suggest that late incubation conditions affect long bone development in broilers. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2008 article

Effects of Incubator Temperature and Oxygen Concentration During the Plateau Stage of Oxygen Consumption on Turkey Embryo Long Bone Development

Oviedo-Rondón, E. O., Small, J., Wineland, M. J., Christensen, V. L., Grimes, J. L., Funderburk, S. V. L., … Mann, K. M. (2008, July 22). Poultry Science, Vol. 87, pp. 1484–1492.

By: E. Oviedo-Rondón n , J. Small n, M. Wineland n, V. Christensen n, J. Grimes n, S. Funderburk n, D. Ort n, K. Mann n

author keywords: turkey; incubation; leg health; bone development
MeSH headings : Animal Husbandry / methods; Animals; Bone Development / physiology; Chondrocytes / cytology; Chondrocytes / metabolism; Embryonic Development / physiology; Femur / cytology; Femur / embryology; Immunohistochemistry / veterinary; Oxygen / administration & dosage; Oxygen Consumption / physiology; Random Allocation; Temperature; Tibia / cytology; Tibia / embryology; Turkeys / embryology
topics (OpenAlex): Animal Nutrition and Physiology; Comparative Animal Anatomy Studies; Aquaculture Nutrition and Growth
TL;DR: It is concluded that incubation conditions affect long bone development in turkeys via TEM and O(2) in resting and hypertrophic zones. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 article

Genetic Control of Embryonic Cardiac Growth and Functional Maturation in Turkeys

Christensen, V. L., Ort, D. T., Nestor, K. E., Havenstein, G. B., & Velleman, S. G. (2008, April 17). Poultry Science.

By: V. Christensen n, D. Ort n, K. Nestor*, G. Havenstein n & S. Velleman*

author keywords: turkey; heart weight; heart rate; myocardial energy metabolism; embryo survival
MeSH headings : Animals; Blood Glucose / analysis; Body Weight / genetics; Creatine Kinase / blood; Creatine Kinase / metabolism; Female; Glycogen / blood; Glycogen / metabolism; Heart / embryology; Heart / physiology; Heart Rate / genetics; L-Lactate Dehydrogenase / blood; L-Lactate Dehydrogenase / metabolism; Lactic Acid / blood; Lactic Acid / metabolism; Liver / embryology; Liver / physiology; Male; Myocardium / chemistry; Organ Size / genetics; Oviposition / genetics; Turkeys / embryology; Turkeys / genetics
topics (OpenAlex): Genetic and phenotypic traits in livestock; Genetic Mapping and Diversity in Plants and Animals; Animal Nutrition and Physiology
TL;DR: Turkey experimental lines E and F were mated reciprocally with the randombred control lines from which they were derived, and the pureline and reciprocal cross poults were compared for their BW, heart weight, heart rates, myocardial glycogen and lactate concentrations, and plasma creatine kinase (CK) and lactATE dehydrogenase (LDH) activities. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 article

Dam Line and Sire Line Effects on Turkey Embryo Survival and Thyroid Hormone Concentrations at the Plateau Stage in Oxygen Consumption

Christensen, V. L., Havenstein, G. B., Ort, D. T., McMurtry, J. P., & Nestor, K. E. (2007, September 1). Poultry Science.

By: V. Christensen n, G. Havenstein n, D. Ort n, J. McMurtry* & K. Nestor*

author keywords: turkey; embryo survival; thyroid; thyroxine; triiodothyronine
MeSH headings : Animals; Breeding; Female; Male; Oxygen Consumption / genetics; Survival Rate; Thyroxine / blood; Triiodothyronine / blood; Turkeys / embryology; Turkeys / genetics
topics (OpenAlex): Genetic and phenotypic traits in livestock; Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities; Animal Nutrition and Physiology
TL;DR: Differences in inheritance of embryo thyroid function appeared to be consistently additive in nature, although significant nonadditive or heterotic effects were present for the ratio at external pipping. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2007 article

Genetic Control of Neonatal Growth and Intestinal Maturation in Turkeys

Christensen, V. L., Ort, D. T., Nestor, K. E., Velleman, S. G., & Havenstein, G. B. (2007, March 1). Poultry Science.

By: V. Christensen n, D. Ort n, K. Nestor*, S. Velleman* & G. Havenstein n

author keywords: turkey; body weight; feed conversion; carbohydrate metabolism; inheritance
MeSH headings : Alkaline Phosphatase / metabolism; Animals; Animals, Newborn / genetics; Animals, Newborn / growth & development; Appetite / genetics; Appetite / physiology; Body Weight / genetics; Body Weight / physiology; Digestion / genetics; Digestion / physiology; Feeding Behavior / physiology; Jejunum / enzymology; Jejunum / growth & development; Organ Size; Turkeys / genetics; Turkeys / growth & development; alpha-Glucosidases / metabolism
topics (OpenAlex): Animal Nutrition and Physiology; Genetic and phenotypic traits in livestock; Animal Behavior and Welfare Studies
TL;DR: The genetic changes from long-term selection in the E and F lines have had concomitant effects on jejunum growth and function that parallel the changes in growth rate and may be due to increases in the absorption of nutrients rather than to differences in glucose digestion. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2006 article

Dam and Sire Effects on Sperm Penetration of the Perivitelline Layer of Eggs Produced by Two Strains of Commercial Turkeys

Christensen, V. L., Fairchild, B. D., & Ort, D. T. (2006, March 1). The Journal of Applied Poultry Research.

By: V. Christensen n, B. Fairchild * & D. Ort n

author keywords: turkey; perivitelline layer; fertility; embryo survival
topics (OpenAlex): Animal Nutrition and Physiology; Plant Reproductive Biology; Plant and animal studies
TL;DR: It is concluded that selection of dam and sires for commercial breeders alters IPVL sperm penetration ability of hens as well as egg-binding ability of sires. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 article

Effect of Chelated Calcium Proteinate Fed in the Maternal Diet of Turkey Breeders on Embryo Cardiac Physiology and Poult Quality

(2006, March 15). International Journal of Poultry Science.

Vern Christensen; Jesse Grimes; Deborah T. Ort

topics (OpenAlex): Animal Nutrition and Physiology; Aquaculture Nutrition and Growth; Livestock and Poultry Management
TL;DR: It is concluded that CCP improves egg shell conductance, and the subsequent eggshell conductance constant (k) of eggs from turkey breeder hens, which improved embryo cardiac health and poult BW after hatching. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2006 article

Incubator Temperature and Oxygen Concentration at the Plateau Stage in Oxygen Consumption Affects Intestinal Maturation of Broiler Chicks

(2006, February 15). International Journal of Poultry Science.

Mike Wineland; Vern Christensen; Brian David Fairchild; Deborah T. Ort; Kenneth M. Mann

topics (OpenAlex): Animal Nutrition and Physiology; Livestock and Poultry Management; Aquaculture Nutrition and Growth
TL;DR: It is concluded that incubator temperatures greater than 37o C, and oxygen concentrations less than 21% are detrimental to intestinal maturation in broiler chicks. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2005 article

Dam and Sire Effects on Sperm Penetration of the Perivitelline Layer and Resulting Fecundity of Different Lines of Turkeys

Christensen, V. L., Fairchild, B. D., Ort, D. T., & Nestor, K. E. (2005, October 1). The Journal of Applied Poultry Research.

By: V. Christensen n, B. Fairchild *, D. Ort n & K. Nestor

author keywords: turkey; sperm penetration; perivitelline layer; fertility
topics (OpenAlex): Animal Nutrition and Physiology; Avian ecology and behavior; Animal Behavior and Reproduction
TL;DR: It is concluded that genetic selection for economically important traits may affect sperm hydrolysis of the perivitelline layer and the subsequent fertility, and embryo livability in turkeys. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 article

Eggshell Conductance and Incubator Ventilation as Factors in Embryo Survival and Poult Quality

(2005, October 15). International Journal of Poultry Science.

Vern Christensen; Mike Wineland; Deborah T. Ort; Kenneth M. Mann

topics (OpenAlex): Animal Nutrition and Physiology
TL;DR: In the developmental process of the embryonic turkey, G may determine energy balance and maturity of each hatchling and may affect its survival and growth rates following hatching. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2005 article

High levels of dietary carbohydrate increase glucose transport in poult intestine

Suvarna, S., Christensen, V. L., Ort, D. T., & Croom, W. J. (2005, July 1). Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology.

By: S. Suvarna n, V. Christensen n, D. Ort n & W. Croom n

author keywords: glucose transport; jejunum; poult; dietary carbohydrate; intestine; turkey; birds
MeSH headings : Animals; Biological Transport; Dietary Carbohydrates / administration & dosage; Dietary Carbohydrates / pharmacology; Glucose / metabolism; Jejunum / metabolism; Thyroxine / blood; Triiodothyronine / blood; Turkeys / metabolism
topics (OpenAlex): Animal Nutrition and Physiology; Peroxisome Proliferator-Activated Receptors; Biochemical Analysis and Sensing Techniques
TL;DR: It is concluded that turkeys belong to the class of birds in which the poults respond to more carbohydrate in the diet by increasing plasma T(3) concentrations, upregulating the glucose transport system, and increasing enzymatic activity as with maltase. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 article

Incubator Temperature and Oxygen Concentrations During the Plateau Stage in Oxygen Uptake Affect Turkey Embryo Plasma T4 and T3 Concentrations

(2005, April 15). International Journal of Poultry Science.

Vern Christensen; Mike Wineland; Brian David Fairchild; Deborah T. Ort; Kenneth M. Mann

topics (OpenAlex): Physiological and biochemical adaptations; Animal Nutrition and Physiology; Aquaculture Nutrition and Growth
TL;DR: Temperature and oxygen are independent stimuli of the avian embryonic thyroid gland during the plateau stage, and that incubator temperature and oxygen concentrations can modulate development of turke y embryos by changing plasma T and T concentrations. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2005 article

The Relationship Between Sperm Hydrolysis of the Perivitelline Layer and Embryonic Livability

Christensen, V. L., Fairchild, B. D., & Ort, D. T. (2005, March 1). The Journal of Applied Poultry Research.

By: V. Christensen n, B. Fairchild n & D. Ort n

author keywords: sperm hydrolysis; embryo viability; fertility; turkey
topics (OpenAlex): Sperm and Testicular Function; Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities; Plant Reproductive Biology
TL;DR: It is suggested that a reduction in the penetration of sperm through the perivitelline layer results in improved embryo livability at wk 4 of development, but the authors saw no association with wk 1 embryolivability. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 article

Incubator Temperature and Oxygen Concentration at the Plateau Stage Affects Intestinal Maturation of Turkey Embryos

(2004, May 15). International Journal of Poultry Science.

Vern Christensen; Mike Wineland; Deborah T. Ort; Kenneth M. Mann

topics (OpenAlex): Animal Nutrition and Physiology; Livestock and Poultry Management; Effects of Environmental Stressors on Livestock
TL;DR: In incubator temperature greater than 37 C and oxygen concentrations less than 19% during the plateau stage delay intestinal maturation, and temperature and oxygen displayed independent effects on growth and function and did not interact. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Incubator temperature and oxygen concentration at the plateau stage affect cardiac health of turkey embryos

Journal of Animal and Veterinary Advances, 3(2), 52.

By: V. Christensen, M. Wineland, I. Yildirum, D. Ort & K. Mann

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

2004 article

Ontogeny of Intestinal Glucose Transport in Heavy and Light Body Weight Turkey Poults1

(2004, November 15). International Journal of Poultry Science.

Vern Christensen; Deborah T. Ort; Warren Croom; S. Suvarna

topics (OpenAlex): Animal Nutrition and Physiology; Animal Behavior and Welfare Studies; Genetic and phenotypic traits in livestock
TL;DR: It was concluded that the increased body weight of HBW poults compared to LBW may be due to increased absorption of all nutrients because of a greater intestinal mass relative to body weight rather than to differences in glucose digestion and uptake rates. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2003 article

Relationship of the Eggshell Conductance Constant to Intestinal Physiology1

(2003, April 15). International Journal of Poultry Science.

S. Suvarna; Vern Christensen; Deborah T. Ort; Warren Croom; Jesse Grimes

topics (OpenAlex): Animal Nutrition and Physiology; Animal Behavior and Welfare Studies; Meat and Animal Product Quality
TL;DR: Differences in EW, G and IP observed at hatching were shown to affect the growth of poults for the first week following hatching, suggesting that large eggs with low permeability may be at risk for weak poulting when they are exposed to shorter IP. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2003 article

Relationship of the Eggshell Conductance Constant to Neonatal Cardiac Physiology1

(2003, April 15). International Journal of Poultry Science.

Vern Christensen; Deborah T. Ort; Jesse Grimes

topics (OpenAlex): Animal Nutrition and Physiology; Meat and Animal Product Quality
TL;DR: Changes in functional qualities of eggs, or the eggshell conductance constant (k), may affect cardiac weight and physiology and predispose poults to a weakened condition and improved knowledge of this relationship may allow selection of k to optimize hatchling cardiac health. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2003 article

Turkey Sire Effects on Embryonic Survival and Physiology

(2003, December 15). International Journal of Poultry Science.

Vern Christensen; Deborah T. Ort; Mike Wineland; Jesse Grimes

topics (OpenAlex): Livestock and Poultry Management; Animal Nutrition and Physiology; Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
Source: NC State University Libraries
Added: August 6, 2018

2002 article

Physiological Factors Associated with Weak Neonatal Poults (Meleagris gallopavo)

Christensen, L. V., Ort, T. D., & Grimes, L. J. (2002, December 15). International Journal of Poultry Science.

By: L. Christensen n, T. Ort* & L. Grimes*

topics (OpenAlex): Animal Nutrition and Physiology; Livestock and Poultry Management; Cardiovascular Conditions and Treatments
TL;DR: The data suggest that management to aid weak neonatal turkey poult deaths may need to focus on conditions fostering heart growth and function. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

Citation Index includes data from a number of different sources. If you have questions about the sources of data in the Citation Index or need a set of data which is free to re-distribute, please contact us.

Certain data included herein are derived from the Web of Science© and InCites© (2026) of Clarivate Analytics. All rights reserved. You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.