Works (12)

Updated: July 5th, 2023 16:01

2004 journal article

Effect of dietary copper source (cupric citrate and,cupric sulfate) and concentration on growth performance and fecal copper excretion in weanling pigs

Journal of Animal Science, 82(4), 1234–1240.

By: T. Armstrong*, D. Cook, M. Ward, C. Williams* & J. Spears*

UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

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.

By: B. Creech n, J. Spears n, W. Flowers n, G. Hill*, K. Lloyd n, T. Armstrong n, T. Engle n

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

2003 journal article

Effect of boron supplementation of pig diets on the production of tumor necrosis factor-alpha and interferon-gamma

Journal of Animal Science, 81(10), 2552–2561.

By: T. Armstrong n & J. Spears n

MeSH headings : Animals; Boron / administration & dosage; Boron / pharmacology; Dietary Supplements; Inflammation / blood; Inflammation / immunology; Inflammation / veterinary; Injections, Intramuscular / veterinary; Interferon-gamma / biosynthesis; Interferon-gamma / drug effects; Kinetics; Lipopolysaccharides / immunology; Lipopolysaccharides / pharmacology; Phytohemagglutinins / immunology; Phytohemagglutinins / pharmacology; Random Allocation; Swine / immunology; Swine Diseases / blood; Swine Diseases / immunology; Tumor Necrosis Factor-alpha / biosynthesis; Tumor Necrosis Factor-alpha / drug effects
TL;DR: The data indicate that dietary B supplementation increased the production of cytokines following a stress, which indicates a role of B in the immune system; however, these data do not explain the reduction in localized inflammation following an antigen challenge in pigs. (via Semantic Scholar)
Source: 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, W. 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)
Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Effect of dietary boron on growth performance, calcium and phosphorus metabolism, and bone mechanical properties in growing barrows

Journal of Animal Science, 79(12), 3120–3127.

By: T. Armstrong n & J. Spears n

MeSH headings : Animal Nutritional Physiological Phenomena; Animals; Biomechanical Phenomena; Bone and Bones / physiology; Boron / administration & dosage; Boron / metabolism; Calcium / metabolism; Femur / physiology; Male; Phosphorus / metabolism; Random Allocation; Swine / growth & development; Swine / metabolism
TL;DR: The data indicate that B supplementation to pigs can increase growth and bone strength without greatly affecting Ca and P metabolism. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Effect of pharmacological concentrations of dietary copper on lipid and cholesterol metabolism in pigs

NUTRITION RESEARCH, 21(9), 1299–1308.

By: T. Armstrong n, J. Spears n, T. Engle n & M. See n

Contributors: T. Armstrong n, J. Spears n, T. Engle n & M. See n

author keywords: copper; lipid metabolism; cholesterol metabolism; pigs
TL;DR: It is indicated that pharmacological concentrations of Cu have little effect on cholesterol and lipid metabolism in the Cu-adequate pig. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2001 journal article

Inflammatory response, growth, and thyroid hormone concentrations are affected by long-term boron supplementationin gilts

Journal of Animal Science, 79(6), 1549–1556.

By: T. Armstrong n, J. Spears n & K. Lloyd n

MeSH headings : Alkaline Phosphatase / blood; Animal Husbandry / methods; Animals; Borates / pharmacology; Boron / administration & dosage; Boron / pharmacology; Cholesterol / blood; Diet / veterinary; Dietary Supplements; Female; Inflammation / veterinary; Random Allocation; Swine / growth & development; Swine Diseases / blood; Thyroid Hormones / blood; Thyroxine / blood; Triiodothyronine / blood; Weaning
TL;DR: Results indicate that B may affect serum thyroid hormone concentrations, the inflammatory response, and growth in pigs. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2000 article

Boron supplementation of a semipurified diet for weanling pigs improves feed efficiency and bone strength characteristics and alters plasma lipid metabolites

Armstrong, T. A., Spears, J. W., Crenshaw, T. D., & Nielsen, F. H. (2000, October). JOURNAL OF NUTRITION, Vol. 130, pp. 2575–2581.

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

author keywords: boron; bone; cholesterol; triglycerides; pigs
MeSH headings : Alkaline Phosphatase / blood; Animal Nutritional Physiological Phenomena; Animals; Biomechanical Phenomena; Bone and Bones / physiology; Boron / administration & dosage; Calcium / blood; Cholesterol / blood; Female; Femur / chemistry; Femur / physiology; Lipids / analysis; Lipids / blood; Magnesium / blood; Male; Phosphorus / blood; Swine / physiology; Triglycerides / blood; Weaning
TL;DR: Two experiments were conducted to determine effects of dietary boron (B) on performance, plasma minerals and metabolites, and bone characteristics in young pigs, and B supplementation of a low B diet elicited responses of physiologic importance to pigs. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Effect of copper source (cupric citrate vs cupric sulfate) and level on growth performance and copper metabolism in pigs

ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 13(8), 1154–1161.

By: T. Armstrong*, J. Spears*, E. Heugten, T. Engle* & C. Wright*

author keywords: copper; growth; liver; bile; bioavailability; pigs
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2000 journal article

Effects of dietary copper source and concentration on carcass characteristics and lipid and cholesterol metabolism in growing and finishing steers

Journal of Animal Science, 78(4), 1053–1059.

By: T. Engle n, J. Spears n, T. Armstrong n, C. Wright n & J. Odle n

MeSH headings : Animal Feed; Animals; Cattle / growth & development; Cattle / metabolism; Cholesterol / metabolism; Copper / pharmacology; Fatty Acids / metabolism; Lipid Metabolism; Liver / metabolism; Male; Meat; Muscle, Skeletal / metabolism
TL;DR: It is indicated that as little as 20 mg of supplemental Cu/kg diet can reduce backfat and serum cholesterol and increase muscle polyunsaturated fatty acids in steers fed high-concentrate diets. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

High dietary copper improves odor characteristics of swine waste.

Journal of Animal Science, 78(4), 859.

By: T. Armstrong n, C. Williams n, J. Spears n & S. Schiffman*

MeSH headings : Animal Feed; Animals; Citrates / pharmacology; Copper Sulfate / pharmacology; Dietary Supplements; Feces; Odorants; Swine / metabolism; Waste Management / methods
TL;DR: Data indicate an improvement in odor characteristics of swine waste with the supplementation of Cu, and lower concentrations of an organic nonsulfate Cu source resulted in similar odor characteristics in swine Waste as 225 ppm CuSO4. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: NC State University Libraries, Crossref, NC State University Libraries
Added: August 6, 2018

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.

By: T. Armstrong n, W. Flowers n & J. Britt n

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

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