Karen E. Lloyd

Works (30)

Updated: August 5th, 2023 21:15

2019 journal article

Chromium propionate in broilers: human food and broiler safety

Poultry Science, 98(12), 6579–6585.

By: J. Spears n, K. Lloyd n, C. Pickworth n , Y. Huang  n, K. Krafka, J. Hyda, J. Grimes n

author keywords: chromium; broilers; tissue chromium
MeSH headings : Animal Feed / analysis; Animals; Chickens / physiology; Diet / veterinary; Dietary Supplements / analysis; Dose-Response Relationship, Drug; Female; Food Safety; Humans; Male; Propionates / administration & dosage; Propionates / metabolism; Random Allocation; Tissue Distribution
topics (OpenAlex): Chromium effects and bioremediation; Analytical chemistry methods development; Trace Elements in Health
TL;DR: Results of this study support the safety of Cr Prop in broiler diets, and indicate that Cr Prop supplementation to broilers diets at 2 or 10× the approved feeding level does not present a human health concern. (via Semantic Scholar)
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Sources: Web Of Science, Crossref, NC State University Libraries
Added: January 13, 2020

2019 article

Effect of zinc source and concentration and chromium supplementation on performance and carcass characteristics in feedlot steers1,2,3

Budde, A. M., Sellins, K., Lloyd, K. E., Wagner, J. J., Heldt, J. S., Spears, J. W., & Engle, T. E. (2019, January 10). Journal of Animal Science.

By: A. Budde *, K. Sellins*, K. Lloyd n, J. Wagner *, J. Heldt*, J. Spears n, T. Engle*

author keywords: beef cattle; chromium; feedlot; zinc
MeSH headings : Abattoirs; Animal Feed / analysis; Animals; Body Composition; Cattle / physiology; Chromium / pharmacology; Diet / veterinary; Dietary Supplements; Liver / metabolism; Male; Random Allocation; Zea mays; Zinc / pharmacology
topics (OpenAlex): Animal Nutrition and Physiology; Pharmacological Effects and Assays; Plant Micronutrient Interactions and Effects
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2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: March 18, 2019

2017 article

Chromium concentrations in ruminant feed ingredients

Spears, J. W., Lloyd, K. E., & Krafka, K. (2017, February 23). Journal of Dairy Science.

By: J. Spears n, K. Lloyd n & K. Krafka

author keywords: chromium; cattle; feed ingredients; ruminants
MeSH headings : Animal Feed; Animals; Cattle; Chromium; Diet / veterinary; Digestion; Ruminants; Silage; Zea mays
topics (OpenAlex): Chromium effects and bioremediation; Heavy metals in environment
TL;DR: Much of the analyzed total Cr in feed ingredients appears to be due to Cr contamination from soil or metal contact during harvesting, processing, or both. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2017 article

Relationships Among Digestible Energy Intake, Body Weight, and Body Condition in Mature Idle Horses

Gill, J. C., Lloyd, K. E., Bowman, M., Siciliano, P. D., & Pratt-Phillips, S. E. (2017, March 7). Journal of Equine Veterinary Science, Vol. 54, pp. 32–36.

By: J. Gill n, K. Lloyd n, M. Bowman n, P. Siciliano n  & S. Pratt-Phillips n

author keywords: Weight gain; Maintenance requirement; Body condition score; Energy expenditure
topics (OpenAlex): Veterinary Equine Medical Research; Ruminant Nutrition and Digestive Physiology; Muscle metabolism and nutrition
TL;DR: Evaluating the relationships among digestible energy (DE) intake, body weight (BW), and body condition score (BCS) in lean/moderate condition horses found it possible that variation in BW gain arose from differences in basal metabolism and energy expenditure. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 article

Chromium propionate in broilers: effect on insulin sensitivity

Brooks, M. A., Grimes, J. L., Lloyd, K. E., Krafka, K., Lamptey, A., & Spears, J. W. (2016, March 1). Poultry Science.

By: M. Brooks  n, J. Grimes n, K. Lloyd n, K. Krafka, A. Lamptey & J. Spears n

author keywords: chromium; insulin; broiler; glucose
MeSH headings : Animals; Blood Glucose / drug effects; Chickens; Fatty Acids, Nonesterified / blood; Glycogen / metabolism; Insulin Resistance; Liver / metabolism; Male; Muscle, Skeletal / metabolism; Propionates / pharmacology
topics (OpenAlex): Chromium effects and bioremediation; Analytical chemistry methods development; Trace Elements in Health
TL;DR: Results of this study indicate that Cr propionate supplementation of a control diet containing 0.43 to 0.45 mg Cr/kg enhanced insulin sensitivity in newly hatched male Ross broilers. (via Semantic Scholar)
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Added: August 6, 2018

2015 article

Effect of dietary copper amount and source on copper metabolism and oxidative stress of weanling pigs in short-term feeding1

Huang, Y. L., Ashwell, M. S., Fry, R. S., Lloyd, K. E., Flowers, W. L., & Spears, J. W. (2015, May 29). 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
topics (OpenAlex): Trace Elements in Health; Animal Nutrition and Physiology; Heavy Metal Exposure and Toxicity
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)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Effects of Supplemental Chromium Source and Concentration on Growth Performance, Carcass Traits, and Meat Quality of Broilers Under Heat Stress Conditions

Biological Trace Element Research, 170(1), 216–223.

By: Y. Huang, J. Yang*, F. Xiao *, K. Lloyd n & X. Lin n 

author keywords: Chromium; Growth performance; Carcass characteristics; Meat quality; Broilers; Heat stress
MeSH headings : Animals; Chickens / growth & development; Chromium / administration & dosage; Female; Heat-Shock Response; Poultry
topics (OpenAlex): Animal Nutrition and Physiology; Meat and Animal Product Quality; Environmental Toxicology and Ecotoxicology
TL;DR: Results from this study indicate that Cr supplementation, independent of its source, could promote growth and improve carcass traits and meat quality of broilers under heat stress conditions. (via Semantic Scholar)
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Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2015 journal article

Effects of Supplemental Chromium Source and Concentration on Growth, Carcass Characteristics, and Serum Lipid Parameters of Broilers Reared Under Normal Conditions

Biological Trace Element Research, 169(2), 352–358.

By: C. Zheng*, Y. Huang *, F. Xiao *, X. Lin n  & K. Lloyd n

author keywords: Broilers; Carcass characteristics; Chromium; Lipid parameters; Normal rearing conditions
MeSH headings : Abdominal Fat / drug effects; Abdominal Fat / growth & development; Animal Feed / analysis; Animals; Chickens / growth & development; Chickens / metabolism; Chlorides / analysis; Chlorides / pharmacology; Cholesterol / blood; Chromium / analysis; Chromium / pharmacology; Chromium Compounds / analysis; Chromium Compounds / pharmacology; Dietary Supplements; Liver / drug effects; Liver / growth & development; Muscle, Skeletal / drug effects; Muscle, Skeletal / growth & development; Picolinic Acids / analysis; Picolinic Acids / pharmacology; Propionates / analysis; Propionates / pharmacology
topics (OpenAlex): Chromium effects and bioremediation; Heavy metals in environment; Adsorption and biosorption for pollutant removal
TL;DR: It is indicated that dietary supplementation of Cr has effects on carcass characteristics and serum lipid parameters of broilers under normal rearing conditions, while supplementation of organic Cr can improve carcasses characteristics and reduce the cholesterol content in serum. (via Semantic Scholar)
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Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2013 article

Bioavailability in chicks of zinc from zinc propionate

Brooks, M. A., Grimes, J. L., Lloyd, K. E., Verissimo, S., & Spears, J. W. (2013, May 17). The Journal of Applied Poultry Research.

By: M. Brooks, J. Grimes n, K. Lloyd*, S. Verissimo n & J. Spears*

author keywords: chick; trace mineral; bioavailability; zinc propionate; zinc sulfate
topics (OpenAlex): Animal Nutrition and Physiology; Trace Elements in Health; Plant Micronutrient Interactions and Effects
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Source: Web Of Science
Added: August 6, 2018

2012 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 pigs1,2

Fry, R. S., Ashwell, M. S., Lloyd, K. E., O'Nan, A. T., Flowers, W. L., Stewart, K. R., & Spears, J. W. (2012, May 15). Journal of Animal Science, Vol. 90, pp. 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
topics (OpenAlex): Trace Elements in Health; Heavy Metal Exposure and Toxicity; Plant Micronutrient Interactions and Effects
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)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 article

Chromium propionate enhances insulin sensitivity in growing cattle

Spears, J. W., Whisnant, C. S., Huntington, G. B., Lloyd, K. E., Fry, R. S., Krafka, K., … Hyda, J. (2012, March 26). Journal of Dairy Science.

By: J. Spears n, C. Whisnant n, G. Huntington n, K. Lloyd n, R. Fry n, K. Krafka, A. Lamptey, J. Hyda

author keywords: chromium; insulin sensitivity; cattle
MeSH headings : Animals; Blood Glucose / analysis; Cattle / growth & development; Diet / veterinary; Dietary Supplements; Fatty Acids, Nonesterified / blood; Female; Glucose / administration & dosage; Glucose Tolerance Test; Insulin / blood; Propionates / administration & dosage; Zea mays
topics (OpenAlex): Chromium effects and bioremediation; Oral and gingival health research
TL;DR: Results indicate that Cr Prop supplementation increased tissue sensitivity to insulin in growing heifers. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2012 article

Effect of dietary copper and breed on gene products involved in copper acquisition, distribution, and use in Angus and Simmental cows and fetuses1,2

Fry, R. S., Spears, J. W., Lloyd, K. E., O'Nan, A. T., & Ashwell, M. S. (2012, November 13). Journal of Animal Science, Vol. 91, pp. 861–871.

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

author keywords: breed; cattle; copper; deficiency; fetus; placentome
MeSH headings : Animals; Cattle / genetics; Cattle / metabolism; Copper / blood; Copper / pharmacokinetics; Copper / pharmacology; Female; Fetus / metabolism; Gene Expression Regulation / drug effects; Liver / metabolism; Minerals; Pregnancy
topics (OpenAlex): Trace Elements in Health; Plant Micronutrient Interactions and Effects
TL;DR: Less expression of duodenal Ctr1 and a tendency for less CTR1 suggest that Simmentals have a lesser ability to absorb and utilize dietary Cu, and may explain why Simmental are more prone to Cu deficiency than Angus. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 article

Relative bioavailability in chicks of manganese from manganese propionate

Brooks, M. A., Grimes, J. L., Lloyd, K. E., Valdez, F., & Spears, J. W. (2012, February 20). The Journal of Applied Poultry Research.

By: M. Brooks, J. Grimes n, K. Lloyd*, F. Valdez & J. Spears*

author keywords: bioavailability; chick; manganese; manganese propionate; trace mineral
topics (OpenAlex): Animal Nutrition and Physiology; Trace Elements in Health; Bird parasitology and diseases
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Source: Web Of Science
Added: August 6, 2018

2011 article

Tolerance of cattle to increased dietary sulfur and effect of dietary cation-anion balance

Spears, J. W., Lloyd, K. E., & Fry, R. S. (2011, March 8). Journal of Animal Science.

By: J. Spears n, K. Lloyd n & R. Fry n

author keywords: cattle; copper; selenium; sulfur
MeSH headings : Animal Feed / analysis; Animal Nutritional Physiological Phenomena; Animals; Body Composition; Cattle / growth & development; Copper / blood; Copper / metabolism; Diet / veterinary; Liver; Male; Sulfur / adverse effects; Sulfur / metabolism; Zinc / blood
topics (OpenAlex): Ruminant Nutrition and Digestive Physiology; Reproductive Physiology in Livestock; Animal Nutrition and Physiology
TL;DR: It is indicated that steers fed growing diets can tolerate up to 0.46% S with minimum effects on performance, and increasing DCAB did not prevent these depressions. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2010 article

Effect of dietary boron on physiological responses in growing steers inoculated with bovine herpesvirus type-1

Fry, R. S., Brown, T. T., Lloyd, K. E., Hansen, S. L., Legleiter, L. R., Robarge, W. P., & Spears, J. W. (2010, May 21). Research in Veterinary Science.

By: R. Fry n, T. Brown n, K. Lloyd n, S. Hansen n, L. Legleiter n, W. Robarge n, J. Spears n

author keywords: Boron; Cattle; BHV-1; Acute phase proteins; Cytokines; Plasma B
MeSH headings : Acute-Phase Reaction; Animal Feed / analysis; Animal Nutritional Physiological Phenomena; Animals; Body Temperature; Boron / pharmacology; Cattle; Cytokines / blood; Diet / veterinary; Dietary Supplements; Dose-Response Relationship, Drug; Eating / drug effects; Herpesvirus 1, Bovine; Infectious Bovine Rhinotracheitis / immunology; Male; Time Factors; Weight Gain / drug effects
topics (OpenAlex): Herpesvirus Infections and Treatments; T-cell and Retrovirus Studies; Peanut Plant Research Studies
TL;DR: Dairy B did not affect the duration and severity of clinical signs of BHV-1 and had minimal effects on plasma acute phase proteins and cytokines and Supplementation of B increased plasma B concentrations in a dose-responsive manner. (via Semantic Scholar)
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2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2010 article

Effects of supplementing dairy cows with chromium propionate on milk and tissue chromium concentrations

Lloyd, K. E., Fellner, V., McLeod, S. J., Fry, R. S., Krafka, K., Lamptey, A., & Spears, J. W. (2010, September 20). Journal of Dairy Science, Vol. 93, pp. 4774–4780.

By: K. Lloyd n, V. Fellner n , S. McLeod n, R. Fry n, K. Krafka, A. Lamptey, J. Spears n

author keywords: chromium; dairy cattle; milk; tissue
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Cattle / metabolism; Diet / veterinary; Dietary Supplements; Female; Milk / chemistry; Propionates / administration & dosage
topics (OpenAlex): Chromium effects and bioremediation; Heavy metals in environment; Heavy Metal Exposure and Toxicity
TL;DR: Supplementation of Cr Prop at a level of 2 mg of Cr/kg of DM did not affect Cr concentration in milk, muscle, or fat, the major bovine products consumed by humans. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 article

Effect of dietary boron on immune function in growing beef steers*

Fry, R. S., Lloyd, K. E., Jacobi, S. K., Siciliano, P. D., Robarge, W. P., & Spears, J. W. (2009, March 31). Journal of Animal Physiology and Animal Nutrition, Vol. 94, pp. 273–279.

By: R. Fry n, K. Lloyd n, S. Jacobi n, P. Siciliano n , W. Robarge n & J. Spears n

author keywords: cattle; boron; immunoglobulins; cytokines; lymphocytes
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Boron / administration & dosage; Boron / blood; Boron / pharmacology; Cattle / growth & development; Cattle / immunology; Diet / veterinary; Dietary Supplements; Dose-Response Relationship, Drug; Male; Phytohemagglutinins / immunology; Time Factors; Weight Gain
topics (OpenAlex): Plant Micronutrient Interactions and Effects; Animal Nutrition and Physiology; Trace Elements in Health
TL;DR: Results from this study indicate that supplemental B had minimal effects on immune function and did not affect performance of growing steers. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 article

The addition of high manganese to a copper-deficient diet further depresses copper status and growth of cattle

Hansen, S. L., Ashwell, M. S., Legleiter, L. R., Fry, R. S., Lloyd, K. E., & Spears, J. W. (2008, September 8). British Journal Of Nutrition, Vol. 101, pp. 1068–1078.

By: S. Hansen n, M. Ashwell n , L. Legleiter n, R. Fry n, K. Lloyd n & J. Spears n

author keywords: Cattle; Copper; Growth; Manganese
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Body Weight / drug effects; Cattle / growth & development; Cattle / metabolism; Copper / deficiency; Cyclooxygenase 1 / genetics; Depression, Chemical; Female; Gene Expression / drug effects; Liver / metabolism; Male; Manganese / administration & dosage; Manganese / analysis; Nutritional Status; Random Allocation; Reverse Transcriptase Polymerase Chain Reaction / methods; Superoxide Dismutase / genetics; Superoxide Dismutase-1; Time Factors
topics (OpenAlex): Trace Elements in Health; Plant Micronutrient Interactions and Effects; Heavy Metal Exposure and Toxicity
TL;DR: In conclusion, feeding a Cu − deficient diet in combination with high Mn negatively affected the growth and Cu status of beef cattle. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 article

Bioavailability of copper from copper glycinate in steers fed high dietary sulfur and molybdenum1,2

Hansen, S. L., Schlegel, P., Legleiter, L. R., Lloyd, K. E., & Spears, J. W. (2007, October 3). Journal of Animal Science.

By: S. Hansen n, P. Schlegel, L. Legleiter n, K. Lloyd n & J. Spears n

author keywords: bioavailability; cattle; copper glycinate; copper sulfate; growth
MeSH headings : Animal Feed / analysis; Animal Nutritional Physiological Phenomena; Animals; Biological Availability; Cattle; Copper / pharmacokinetics; Diet / veterinary; Dietary Supplements; Dose-Response Relationship, Drug; Glycine / pharmacokinetics; Male; Molybdenum / pharmacology; Organometallic Compounds / pharmacokinetics; Sulfur / pharmacology
topics (OpenAlex): Ruminant Nutrition and Digestive Physiology; Animal Nutrition and Physiology; Genetic and phenotypic traits in livestock
TL;DR: Results of this study suggest that Cu from CuGly may be more available than CuSO(4) when supplemented to diets high in S and Mo. (via Semantic Scholar)
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Added: August 6, 2018

2007 article

Exposure to low dietary copper or low copper coupled with high dietary manganese for one year does not alter brain prion protein characteristics in the mature cow1,2

Legleiter, L. R., Liu, H. C., Lloyd, K. E., Hansen, S. L., Fry, R. S., & Spears, J. W. (2007, October 22). Journal of Animal Science.

By: L. Legleiter n, H. Liu n, K. Lloyd n, S. Hansen n, R. Fry n & J. Spears n

author keywords: bovine; copper; manganese; prion
MeSH headings : Animals; Blotting, Western / veterinary; Brain / metabolism; Cattle; Copper / administration & dosage; Copper / deficiency; Dose-Response Relationship, Drug; Encephalopathy, Bovine Spongiform / metabolism; Enzyme-Linked Immunosorbent Assay / veterinary; Female; Manganese / administration & dosage; Molecular Weight; Prions / drug effects; Prions / pathogenicity; Random Allocation
topics (OpenAlex): Prion Diseases and Protein Misfolding; Trace Elements in Health
TL;DR: It is concluded that Cu deficiency, coupled with excessive Mn intake, in the bovine may decrease brain Cu and increase brain Mn. (via Semantic Scholar)
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Added: August 6, 2018

2006 article

Feeding a Low Manganese Diet to Heifers During Gestation Impairs Fetal Growth and Development

Hansen, S. L., Spears, J. W., Lloyd, K. E., & Whisnant, C. S. (2006, November 1). Journal of Dairy Science.

By: S. Hansen n, J. Spears n, K. Lloyd n & C. Whisnant n

author keywords: fetal development; heifer; manganese; reproduction
MeSH headings : Animal Feed / analysis; Animals; Body Weight / drug effects; Cattle / physiology; Cholesterol / blood; Diet / veterinary; Female; Fetal Development / drug effects; Fetal Development / physiology; Lactation; Manganese / administration & dosage; Manganese / blood; Manganese / deficiency; Pregnancy
topics (OpenAlex): Plant Micronutrient Interactions and Effects
TL;DR: Results suggest that feeding gestating heifers a diet containing 16.6 mg of Mn/kg of DM is not adequate for proper fetal development, and Supplementation of 50 mg ofmn/ kg of DM to the control diet was sufficient to overcome any signs of Mn deficiency in calves. (via Semantic Scholar)
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2006 article

Growth, reproductive performance, and manganese status of heifers fed varying concentrations of manganese1,2

Hansen, S. L., Spears, J. W., Lloyd, K. E., & Whisnant, C. S. (2006, November 8). Journal of Animal Science.

By: S. Hansen n, J. Spears n, K. Lloyd n & C. Whisnant n

author keywords: cattle; growth; manganese; reproduction
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Cattle; Diet; Dietary Supplements; Dose-Response Relationship, Drug; Female; Manganese / pharmacology; Reproduction / drug effects; Trace Elements / pharmacology
topics (OpenAlex): Genetic and phenotypic traits in livestock; Ruminant Nutrition and Digestive Physiology; Magnesium in Health and Disease
TL;DR: Results of this study indicate that 15.8 mg of Mn/kg of diet DM should be adequate for growth, onset of estrus, and conception of beef heifers. (via Semantic Scholar)
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2005 article

Effect of chromium supplementation and copper status on glucose and lipid metabolism in Angus and Simmental beef cows

Stahlhut, H. S., Whisnant, C. S., Lloyd, K. E., Baird, E. J., Legleiter, L. R., Hansen, S. L., & Spears, J. W. (2005, December 16). Animal Feed Science and Technology.

By: H. Stahlhut n, C. Whisnant n, K. Lloyd n, E. Baird n, L. Legleiter n, S. Hansen n, J. Spears n

author keywords: chromium; cattle; copper; glucose tolerance
topics (OpenAlex): Chromium effects and bioremediation; Heavy metals in environment
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Source: Web Of Science
Added: August 6, 2018

2005 article

Influence of dietary manganese on performance, lipid metabolism, and carcass composition of growing and finishing steers1,2

Legleiter, L. R., Spears, J. W., & Lloyd, K. E. (2005, October 1). Journal of Animal Science.

By: L. Legleiter*, J. Spears n & K. Lloyd n

MeSH headings : Animal Feed / analysis; Animals; Body Composition / drug effects; Body Weight / drug effects; Cattle / physiology; Diet / veterinary; Dietary Supplements; Lipid Metabolism / drug effects; Male; Manganese / administration & dosage; Manganese / analysis; Manganese / pharmacology; Random Allocation
topics (OpenAlex): Animal Nutrition and Physiology; Ruminant Nutrition and Digestive Physiology; Meat and Animal Product Quality
TL;DR: Manganese concentrations of 29 and 8 mg/kg of DM in the growing and finishing diets, respectively, were adequate for maximizing performance ofgrowing and finishing steers in this experiment. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2004 article

Bioavailability of zinc from zinc sulfate and different organic zinc sources and their effects on ruminal volatile fatty acid proportions

Spears, J. W., Schlegel, P., Seal, M. C., & Lloyd, K. E. (2004, July 16). Livestock Production Science.

By: J. Spears n, P. Schlegel, M. Seal n & K. Lloyd n

author keywords: cattle; organic zinc; zinc
topics (OpenAlex): Ruminant Nutrition and Digestive Physiology; Plant Micronutrient Interactions and Effects; Trace Elements in Health
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Added: August 6, 2018

2004 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 finishing12

Creech, B. L., Spears, J. W., Flowers, W. L., Hill, G. M., Lloyd, K. E., Armstrong, T. A., & Engle, T. E. (2004, July 1). Journal of Animal Science, Vol. 82, pp. 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
topics (OpenAlex): Animal Nutrition and Physiology; Animal Behavior and Welfare Studies; Genetic and phenotypic traits in livestock
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

2003 article

Effects of High Dietary Calcium Propionate and Dietary Cation-Anion Balance on Calcium Metabolism and Longissimus Muscle Tenderness in Finishing Steers ,

Spears, J. W., Engle, T. E., Platter, W. R., Lloyd, K. E., Belk, K. E., & Horton, J. (2003, December 1). The Professional Animal Scientist.

By: J. Spears*, T. Engle*, W. Platter*, K. Lloyd*, K. Belk * & J. Horton n

topics (OpenAlex): Meat and Animal Product Quality; Animal Nutrition and Physiology; Pharmacological Effects and Assays
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2. Zero Hunger (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

2002 article

Dietary Zinc Effects on Growth Performance and Immune Response of Endotoxemic Growing Pigs

Roberts, E. S., Heugten, E., Lloyd, K., Almond, G. W., & Spears, J. W. (2002, January 1). Asian-Australasian Journal of Animal Sciences.

By: E. Roberts  n, E. Heugten n , K. Lloyd n, G. Almond n  & J. Spears n

author keywords: pigs; zinc; immune response
topics (OpenAlex): Trace Elements in Health; Animal Nutrition and Physiology; Heavy Metal Exposure and Toxicity
TL;DR: Zinc supplemented at 50 or 150 ppm resulted in an enhanced febrile response in pigs subjected to iatrogenic endotoxemia, but did not affect pig performance or immune response measurements. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 article

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

Armstrong, T. A., Spears, J. W., & Lloyd, K. E. (2001, January 1). Journal of Animal Science.

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
topics (OpenAlex): Plant Micronutrient Interactions and Effects; Animal Nutrition and Physiology; Selenium in Biological Systems; Trace Elements in Health
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

1999 article

Effect of breed (Angus vs Simmental) on immune function and response to a disease challenge in stressed steers and preweaned calves.

Engle, T. E., Spears, J. W., Brown, T. T., & Lloyd, K. E. (1999, January 1). Journal of Animal Science.

By: T. Engle n, J. Spears n, T. Brown n & K. Lloyd n

MeSH headings : Animals; Body Temperature; Breeding; Cattle / classification; Cattle / immunology; Eating; Erythrocytes / immunology; Female; Immunity, Innate; Immunoglobulins / biosynthesis; Male; Phytohemagglutinins / immunology; Stress, Physiological / immunology; Swine; Weight Gain
topics (OpenAlex): Animal health and immunology; T-cell and Retrovirus Studies; Microbial infections and disease research
TL;DR: Results indicate that the immune response of Angus and Simmental calves may differ and breed did affect cell-mediated immune response to phytohemagglutinin (PHA). (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

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