Effects of copper and zinc source on performance and humoral immune response of newly received, lightweight beef heifers

Two experiments were conducted to evaluate the effects of Cu and Zn source on performance, morbidity, and humoral immune response in lightweight, newly received beef heifers. A 2 x 2 factorial arrangement of treatments was used in both experiments, with either a sulfate or a polysaccharide mineral c...

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Veröffentlicht in:	Journal of animal science 2004-08, Vol.82 (8), p.2467-2473
Hauptverfasser:	Salyer, G.B, Galyean, M.L, Defoor, P.J, Nunnery, G.A, Parsons, C.H, Rivera, J.D
Format:	Artikel
Sprache:	eng
Schlagworte:	animal performance Animal productions Animals Antibody Formation - drug effects beef cows Biological and medical sciences body weight bovine respiratory disease Cattle - growth & development Cattle - immunology Cattle Diseases - immunology copper Copper - administration & dosage Copper - pharmacology Copper Sulfate - administration & dosage Copper Sulfate - pharmacology diet dietary mineral supplements dietary nutrient sources Drug Interactions Eating - drug effects Enzyme-Linked Immunosorbent Assay - veterinary Female Food industries Fundamental and applied biological sciences. Psychology heifers humoral immunity immune response Meat and meat product industries morbidity Polysaccharides - administration & dosage Polysaccharides - pharmacology protective effect Random Allocation Respiratory Tract Diseases - immunology Respiratory Tract Diseases - veterinary Terrestrial animal productions vaccines Vertebrates Weight Gain - drug effects zinc Zinc - administration & dosage Zinc - pharmacology Zinc Oxide - administration & dosage Zinc Oxide - pharmacology
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