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Jerry Spears

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R S Fry; KE Lloyd; A T O'Nan; Jerry W Spears; Melissa S Ashwell
Effect of dietary copper and breed on gene products involved in copper acquisition, distribution, and use in Angus and Simmental cows and fetuses.
R S Fry; KE Lloyd; A T O'Nan; Melissa S Ashwell; WL Flowers; K R Stewart; Jerry W Spears
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.
Jerry W Spears; Scott Whisnant; R S Fry; GB Huntington; K Krafka; A Lamptey; KE Lloyd; J Hyda
Chromium propionate enhances insulin sensitivity in growing cattle.

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All Publications

2013: R S Fry; KE Lloyd; A T O'Nan; Jerry W Spears; Melissa S Ashwell
Effect of dietary copper and breed on gene products involved in copper acquisition, distribution, and use in Angus and Simmental cows and fetuses.
Journal of animal science 2013;91(2):861-71.
2012: R S Fry; KE Lloyd; A T O'Nan; Melissa S Ashwell; WL Flowers; K R Stewart; Jerry W Spears
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 2012;90(9):3112-9.
2012: Jerry W Spears; Scott Whisnant; R S Fry; GB Huntington; K Krafka; A Lamptey; KE Lloyd; J Hyda
Chromium propionate enhances insulin sensitivity in growing cattle.
Journal of dairy science 2012;95(4):2037-45.
2011: Jerry W Spears; KE Lloyd; R S Fry
Tolerance of cattle to increased dietary sulfur and effect of dietary cation-anion balance.
Journal of animal science 2011;89(8):2502-9.
2011: M S Ashwell; R S Fry; Jerry W Spears; A T O'Nan; C Maltecca
Investigation of breed and sex effects on cytochrome P450 gene expression in cattle liver.
Research in veterinary science 2011;90(2):235-7.
2011: R S Fry; TT Brown; KE Lloyd; SL Hansen; Leon R Legleiter; W P Robarge; Jerry W Spears
Effect of dietary boron on physiological responses in growing steers inoculated with bovine herpesvirus type-1.
Research in veterinary science 2011;90(1):78-83.
2010: KE Lloyd; V Fellner; S J McLeod; R S Fry; K Krafka; A Lamptey; Jerry W Spears
Effects of supplementing dairy cows with chromium propionate on milk and tissue chromium concentrations.
Journal of dairy science 2010;93(10):4774-80.
2010: R S Fry; KE Lloyd; S K Jacobi; P D Siciliano; W P Robarge; Jerry W Spears
Effect of dietary boron on immune function in growing beef steers.
Journal of animal physiology and animal nutrition 2010;94(3):273-9.
2010: SL Hansen; Melissa S Ashwell; Adam J Moeser; R S Fry; M D Knutson; Jerry W Spears
High dietary iron reduces transporters involved in iron and manganese metabolism and increases intestinal permeability in calves.
Journal of dairy science 2010;93(2):656-65.
2010: SL Hansen; Nares Trakooljul; Jerry W Spears; Hsiao-Ching Liu
Age and dietary iron affect expression of genes involved in iron acquisition and homeostasis in young pigs.
The Journal of nutrition 2010;140(2):271-7.
2010: SL Hansen; N Trakooljul; H-C S Liu; J A Hicks; M S Ashwell; Jerry W Spears
Proteins involved in iron metabolism in beef cattle are affected by copper deficiency in combination with high dietary manganese, but not by copper deficiency alone.
Journal of animal science 2010;88(1):275-83.
2009: SL Hansen; Nares Trakooljul; Hsiao-Ching Liu; Adam J Moeser; Jerry W Spears
Iron transporters are differentially regulated by dietary iron, and modifications are associated with changes in manganese metabolism in young pigs.
The Journal of nutrition 2009;139(8):1474-9.
2009: SL Hansen; Jerry W Spears
Bioaccessibility of iron from soil is increased by silage fermentation.
Journal of dairy science 2009;92(6):2896-905.
2009: SL Hansen; Melissa S Ashwell; Leon R Legleiter; Robert S Fry; KE Lloyd; Jerry W Spears
The addition of high manganese to a copper-deficient diet further depresses copper status and growth of cattle.
The British journal of nutrition 2009;101(7):1068-78.
2008: Leon R Legleiter; Jerry W Spears; H C Liu
Copper deficiency in the young bovine results in dramatic decreases in brain copper concentration but does not alter brain prion protein biology.
Journal of animal science 2008;86(11):3069-78.
2008: C L Wright; Jerry W Spears; K E Webb
Uptake of zinc from zinc sulfate and zinc proteinate by ovine ruminal and omasal epithelia.
Journal of animal science 2008;86(6):1357-63.
2008: Jerry W Spears; William P Weiss
Role of antioxidants and trace elements in health and immunity of transition dairy cows.
Veterinary journal (London, England : 1997) 2008;176(1):70-6.
2008: SL Hansen; Patrick Schlegel; Leon R Legleiter; KE Lloyd; Jerry W Spears
Bioavailability of copper from copper glycinate in steers fed high dietary sulfur and molybdenum.
Journal of animal science 2008;86(1):173-9.
2007: Leon R Legleiter; H C Liu; KE Lloyd; SL Hansen; R S Fry; Jerry W Spears
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 cow.
Journal of animal science 2007;85(11):2895-903.
2007: Leon R Legleiter; Jerry W Spears
Plasma diamine oxidase: a biomarker of copper deficiency in the bovine.
Journal of animal science 2007;85(9):2198-204.
2007: Leon R Legleiter; Jason K Ahola; Terry E Engle; Jerry W Spears
Decreased brain copper due to copper deficiency has no effect on bovine prion proteins.
Biochemical and biophysical research communications 2007;352(4):884-8.
2006: SL Hansen; Jerry W Spears; KE Lloyd; Scott Whisnant
Growth, reproductive performance, and manganese status of heifers fed varying concentrations of manganese.
Journal of animal science 2006;84(12):3375-80.
2006: SL Hansen; Jerry W Spears; KE Lloyd; Scott Whisnant
Feeding a low manganese diet to heifers during gestation impairs fetal growth and development.
Journal of dairy science 2006;89(11):4305-11.
2006: ME Tiffany; V Fellner; Jerry W Spears
Influence of cobalt concentration on vitamin B12 production and fermentation of mixed ruminal microorganisms grown in continuous culture flow-through fermentors.
Journal of animal science 2006;84(3):635-40.
2005: ME Tiffany; Jerry W Spears
Differential responses to dietary cobalt in finishing steers fed corn-versus barley-based diets.
Journal of animal science 2005;83(11):2580-9.
2005: Leon R Legleiter; Jerry W Spears; KE Lloyd
Influence of dietary manganese on performance, lipid metabolism, and carcass composition of growing and finishing steers.
Journal of animal science 2005;83(10):2434-9.
2004: B L Creech; Jerry W Spears; WL Flowers; G M Hill; KE Lloyd; TA Armstrong; Terry E Engle
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 2004;82(7):2140-7.
2004: C L Wrightt; Jerry W Spears
Effect of zinc source and dietary level on zinc metabolism in Holstein calves.
Journal of dairy science 2004;87(4):1085-91.
2004: TA Armstrong; D R Cook; M M Ward; CM Williams; Jerry W Spears
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 2004;82(4):1234-40.
2003: ME Tiffany; Jerry W Spears; L Xi; J Horton
Influence of dietary cobalt source and concentration on performance, vitamin B12 status, and ruminal and plasma metabolites in growing and finishing steers.
Journal of animal science 2003;81(12):3151-9.
2003: TA Armstrong; Jerry W Spears
Effect of boron supplementation of pig diets on the production of tumor necrosis factor-alpha and interferon-gamma.
Journal of animal science 2003;81(10):2552-61.
2003: Eric van Heugten; Jerry W Spears; EB Kegley; JD Ward; M A Qureshi
Effects of organic forms of zinc on growth performance, tissue zinc distribution, and immune response of weanling pigs.
Journal of animal science 2003;81(8):2063-71.
2003: Jerry W Spears
Trace mineral bioavailability in ruminants.
The Journal of nutrition 2003;133(5 Suppl 1):1506S-9S.
2003: L A Mullis; Jerry W Spears; R L McCraw
Estimated copper requirements of angus and simmental heifers.
Journal of animal science 2003;81(4):865-73.
2003: L A Mullis; Jerry W Spears; B L McCraw
Effects of breed (Angus vs Simmental) and copper and zinc source on mineral status of steers fed high dietary iron.
Journal of animal science 2003;81(1):318-22.
2002: Jerry W Spears; EB Kegley
Effect of zinc source (zinc oxide vs zinc proteinate) and level on performance, carcass characteristics, and immune response of growing and finishing steers.
Journal of animal science 2002;80(10):2747-52.
2002: TA Armstrong; WL Flowers; Jerry W Spears; F H Nielsent
Long-term effects of boron supplementation on reproductive characteristics and bone mechanical properties in gilts.
Journal of animal science 2002;80(1):154-61.
2001: TA Armstrong; Jerry W Spears
Effect of dietary boron on growth performance, calcium and phosphorus metabolism, and bone mechanical properties in growing barrows.
Journal of animal science 2001;79(12):3120-7.
2001: Terry E Engle; Jerry W Spears
Performance, carcass characteristics, and lipid metabolism in growing and finishing Simmental steers fed varying concentrations of copper.
Journal of animal science 2001;79(11):2920-5.
2001: Terry E Engle; V Fellner; Jerry W Spears
Copper status, serum cholesterol, and milk fatty acid profile in Holstein cows fed varying concentrations of copper.
Journal of dairy science 2001;84(10):2308-13.
2001: TA Armstrong; Jerry W Spears; KE Lloyd
Inflammatory response, growth, and thyroid hormone concentrations are affected by long-term boron supplementation in gilts.
Journal of animal science 2001;79(6):1549-56.
2001: GB Huntington; Matthew H Poore; Brinton A Hopkins; Jerry W Spears
Effect of ruminal protein degradability on growth and N metabolism in growing beef steers.
Journal of animal science 2001;79(2):533-41.
2001: EB Kegley; Jerry W Spears; S K Auman
Dietary phosphorus and an inflammatory challenge affect performance and immune function of weanling pigs.
Journal of animal science 2001;79(2):413-9.
2000: Jerry W Spears
Micronutrients and immune function in cattle.
The Proceedings of the Nutrition Society 2000;59(4):587-94.
2000: Terry E Engle; Jerry W Spears; L Xi; FW Edens
Dietary copper effects on lipid metabolism and circulating catecholamine concentrations in finishing steers.
Journal of animal science 2000;78(10):2737-44.
2000: Terry E Engle; Jerry W Spears; V Fellner; Jack Odle
Effects of soybean oil and dietary copper on ruminal and tissue lipid metabolism in finishing steers.
Journal of animal science 2000;78(10):2713-21.
2000: TA Armstrong; Jerry W Spears; T D Crenshaw; F H Nielsen
Boron supplementation of a semipurified diet for weanling pigs improves feed efficiency and bone strength characteristics and alters plasma lipid metabolites.
The Journal of nutrition 2000;130(10):2575-81.
2000: Terry E Engle; Jerry W Spears
Dietary copper effects on lipid metabolism, performance, and ruminal fermentation in finishing steers.
Journal of animal science 2000;78(9):2452-8.
2000: Terry E Engle; Jerry W Spears
Effects of dietary copper concentration and source on performance and copper status of growing and finishing steers.
Journal of animal science 2000;78(9):2446-51.
2000: Terry E Engle; Jerry W Spears; TA Armstrong; C L Wright; Jack Odle
Effects of dietary copper source and concentration on carcass characteristics and lipid and cholesterol metabolism in growing and finishing steers.
Journal of animal science 2000;78(4):1053-9.
2000: TA Armstrong; CM Williams; Jerry W Spears; Susan S Schiffman
High dietary copper improves odor characteristics of swine waste.
Journal of animal science 2000;78(4):859-64.
1999: Terry E Engle; Jerry W Spears; TT Brown; KE Lloyd
Effect of breed (Angus vs Simmental) on immune function and response to a disease challenge in stressed steers and preweaned calves.
Journal of animal science 1999;77(3):516-21.
1999: JD Ward; Jerry W Spears
The effects of low-copper diets with or without supplemental molybdenum on specific immune responses of stressed cattle.
Journal of animal science 1999;77(1):230-7.
1998: GP Gengelbach; Jerry W Spears
Effects of dietary copper and molybdenum on copper status, cytokine production, and humoral immune response of calves.
Journal of dairy science 1998;81(12):3286-92.
1997: JD Ward; Jerry W Spears
Long-term effects of consumption of low-copper diets with or without supplemental molybdenum on copper status, performance, and carcass characteristics of cattle.
Journal of animal science 1997;75(11):3057-65.
1997: EB Kegley; Jerry W Spears; Joan H Eisemann
Performance and glucose metabolism in calves fed a chromium-nicotinic acid complex or chromium chloride.
Journal of dairy science 1997;80(8):1744-50.
1997: EB Kegley; Jerry W Spears; TT Brown
Effect of shipping and chromium supplementation on performance, immune response, and disease resistance of steers.
Journal of animal science 1997;75(7):1956-64.
1997: JD Ward; GP Gengelbach; Jerry W Spears
The effects of copper deficiency with or without high dietary iron or molybdenum on immune function of cattle.
Journal of animal science 1997;75(5):1400-8.
1997: GP Gengelbach; JD Ward; Jerry W Spears; TT Brown
Effects of copper deficiency and copper deficiency coupled with high dietary iron or molybdenum on phagocytic cell function and response of calves to a respiratory disease challenge.
Journal of animal science 1997;75(4):1112-8.
1997: Eric van Heugten; Jerry W Spears
Immune response and growth of stressed weanling pigs fed diets supplemented with organic or inorganic forms of chromium.
Journal of animal science 1997;75(2):409-16.
1996: E van Heugten; M T Coffey; Jerry W Spears
Effects of immune challenge, dietary energy density, and source of energy on performance and immunity in weanling pigs.
Journal of animal science 1996;74(10):2431-40.
1996: EB Kegley; Jerry W Spears; T T Brown
Immune response and disease resistance of calves fed chromium nicotinic acid complex or chromium chloride.
Journal of dairy science 1996;79(7):1278-83.
1996: JD Ward; Jerry W Spears; EB Kegley
Bioavailability of copper proteinate and copper carbonate relative to copper sulfate in cattle.
Journal of dairy science 1996;79(1):127-32.
1995: EB Kegley; Jerry W Spears
Immune response, glucose metabolism, and performance of stressed feeder calves fed inorganic or organic chromium.
Journal of animal science 1995;73(9):2721-6.
1995: JD Ward; Jerry W Spears; G P Gengelbach
Differences in copper status and copper metabolism among Angus, Simmental, and Charolais cattle.
Journal of animal science 1995;73(2):571-7.
1994: EB Kegley; Jerry W Spears
Bioavailability of feed-grade copper sources (oxide, sulfate, or lysine) in growing cattle.
Journal of animal science 1994;72(10):2728-34.
1994: G P Gengelbach; JD Ward; Jerry W Spears
Effect of dietary copper, iron, and molybdenum on growth and copper status of beef cows and calves.
Journal of animal science 1994;72(10):2722-7.
1994: E van Heugten; Jerry W Spears; M T Coffey
The effect of dietary protein on performance and immune response in weanling pigs subjected to an inflammatory challenge.
Journal of animal science 1994;72(10):2661-9.
1994: J G Ross; Jerry W Spears; Jim D Garlich
Dietary electrolyte balance effects on performance and metabolic characteristics in growing steers.
Journal of animal science 1994;72(7):1842-8.
1994: J G Ross; Jerry W Spears; Jim D Garlich
Dietary electrolyte balance effects on performance and metabolic characteristics in finishing steers.
Journal of animal science 1994;72(6):1600-7.
1994: E van Heugten; Jerry W Spears; M T Coffey; EB Kegley; Muquarrab A Qureshi
The effect of methionine and aflatoxin on immune function in weanling pigs.
Journal of animal science 1994;72(3):658-64.
1993: JD Ward; Jerry W Spears
Comparison of copper lysine and copper sulfate as copper sources for ruminants using in vitro methods.
Journal of dairy science 1993;76(10):2994-8.
1993: JD Ward; Jerry W Spears; EB Kegley
Effect of copper level and source (copper lysine vs copper sulfate) on copper status, performance, and immune response in growing steers fed diets with or without supplemental molybdenum and sulfur.
Journal of animal science 1993;71(10):2748-55.
1993: J R Stabel; Jerry W Spears; T T Brown
Effect of copper deficiency on tissue, blood characteristics, and immune function of calves challenged with infectious bovine rhinotracheitis virus and Pasteurella hemolytica.
Journal of animal science 1993;71(5):1247-55.
1993: E A Droke; Jerry W Spears; J D Armstrong; EB Kegley; R B Simpson
Dietary zinc affects serum concentrations of insulin and insulin-like growth factor I in growing lambs.
The Journal of nutrition 1993;123(1):13-9.
1992: M L Haven; J J Wichtel; D G Bristol; J F Fetrow; Jerry W Spears
Effects of antibiotic prophylaxis on postoperative complications after rumenotomy in cattle.
Journal of the American Veterinary Medical Association 1992;200(9):1332-5.
1991: Jerry W Spears; R W Harvey; T T Brown
Effects of zinc methionine and zinc oxide on performance, blood characteristics, and antibody titer response to viral vaccination in stressed feeder calves.
Journal of the American Veterinary Medical Association 1991;199(12):1731-3.
1991: EB Kegley; R W Harvey; Jerry W Spears
Effects of lysocellin and calcium level on mineral metabolism, performance and ruminal and plasma characteristics of beef steers.
Journal of animal science 1991;69(2):782-91.
1991: J D Armstrong; Jerry W Spears
Changes in growth hormone and luteinizing hormone following acute or chronic administration of an opioid agonist, FK33-824, in wethers.
Journal of animal science 1991;69(2):774-81.
1990: Jerry W Spears
Ionophores and nutrient digestion and absorption in ruminants.
The Journal of nutrition 1990;120(6):632-8.
1990: T P Oscar; Jerry W Spears
Incorporation of nickel into ruminal factor F430 as affected by monensin and formate.
Journal of animal science 1990;68(5):1400-4.
1990: EB Kegley; R W Harvey; Jerry W Spears; R G Crickenberger
The effects of lysocellin and varying calcium levels on performance and ruminal and plasma characteristics of growing beef steers fed corn silage.
Journal of animal science 1990;68(2):483-9.
1989: J Reffett-Stabel; Jerry W Spears; R W Harvey; D M Lucas
Salinomycin and lasalocid effects on growth rate, mineral metabolism and ruminal fermentation in steers.
Journal of animal science 1989;67(10):2735-42.
1989: Jerry W Spears; B R Schricker; JC Burns
Influence of lysocellin and monensin on mineral metabolism of steers fed forage-based diets.
Journal of animal science 1989;67(8):2140-9.
1989: Jerry W Spears
Zinc methionine for ruminants: relative bioavailability of zinc in lambs and effects of growth and performance of growing heifers.
Journal of animal science 1989;67(3):835-43.
1989: J R Stabel; Jerry W Spears; T T Brown; J Brake
Selenium effects on glutathione peroxidase and the immune response of stressed calves challenged with Pasteurella hemolytica.
Journal of animal science 1989;67(2):557-64.
1989: Jerry W Spears; JC Burns; G W Wolfrom
Lysocellin effects on growth performance, ruminal fermentation, nutrient digestibility and nitrogen metabolism in steers fed forage diets.
Journal of animal science 1989;67(2):547-56.
1988: A Prabowo; Jerry W Spears; L Goode
Effects of dietary iron on performance and mineral utilization in lambs fed a forage-based diet.
Journal of animal science 1988;66(8):2028-35.
1988: J D Armstrong; Jerry W Spears
Intravenous administration of ionophores in ruminants: effects on metabolism independent of the rumen.
Journal of animal science 1988;66(7):1807-17.
1988: J K Reffett; Jerry W Spears; T T Brown
Effect of dietary selenium and vitamin E on the primary and secondary immune response in lambs challenged with parainfluenza3 virus.
Journal of animal science 1988;66(6):1520-8.
1988: R W Harvey; Jerry W Spears; D E Darden
Effects of lysocellin on performance, ruminal and plasma characteristics of growing cattle.
Journal of animal science 1988;66(4):1036-41.
1988: J K Reffett; Jerry W Spears; T T Brown
Effect of dietary selenium on the primary and secondary immune response in calves challenged with infectious bovine rhinotracheitis virus.
The Journal of nutrition 1988;118(2):229-35.
1987: Jerry W Spears; R W Harvey
Lasalocid and dietary sodium and potassium effects on mineral metabolism, ruminal volatile fatty acids and performance of finishing steers.
Journal of animal science 1987;65(3):830-40.
1987: T P Oscar; Jerry W Spears; J C Shih
Performance, methanogenesis and nitrogen metabolism of finishing steers fed monensin and nickel.
Journal of animal science 1987;64(3):887-96.
1986: Jerry W Spears; R W Harvey; L J Samsell
Effects of dietary nickel and protein on growth, nitrogen metabolism and tissue concentrations of nickel, iron, zinc, manganese and copper in calves.
The Journal of nutrition 1986;116(10):1873-82.
1986: Jerry W Spears; R W Harvey; E C Segerson
Effects of marginal selenium deficiency and winter protein supplementation on growth, reproduction and selenium status of beef cattle.
Journal of animal science 1986;63(2):586-94.
1984: Jerry W Spears; E E Jones; L J Samsell; W D Armstrong
Effect of dietary nickel on growth, urease activity, blood parameters and tissue mineral concentrations in the neonatal pig.
The Journal of nutrition 1984;114(5):845-53.
1984: Jerry W Spears; R W Harvey
Performance, ruminal and serum characteristics of steers fed lasalocid on pasture.
Journal of animal science 1984;58(2):460-4.