Effect of preslaughter feeding and ractopamine hydrochloride supplementation on growth performance, carcass characteristics, and end product quality in market dairy cows

An experiment was conducted in market dairy cows to determine the effect of feeding time and ractopamine hydrochloride (RAC) on growth performance, carcass characteristics, and end product quality. In 3 replicates, 9 Holstein cows per replicate (n = 27; 659 ± 25.3 kg initial BW) culled from 3 dairie...

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Veröffentlicht in:	Journal of animal science 2009-07, Vol.87 (7), p.2400-2408
Hauptverfasser:	Allen, J.D, Ahola, J.K, Chahine, M, Szasz, J.I, Hunt, C.W, Schneider, C.S, Murdoch, G.K, Hill, R.A
Format:	Artikel
Sprache:	eng
Schlagworte:	Adrenergic beta-Agonists - pharmacology Aging - physiology animal age Animal Feed - analysis Animal Nutritional Physiological Phenomena Animal productions Animals beef beef quality Biological and medical sciences Body Composition - drug effects body condition body weight carcass characteristics carcass grading carcass weight Cattle - growth & development cow feeding culling (animals) dairy cows Dairying Diet - veterinary Dietary Supplements dressing percentage dry matter intake feed additives feed concentrates feedlots Female finishing food animals Food industries Fundamental and applied biological sciences. Psychology locomotion marbling Meat - standards Meat and meat product industries meat grades meat quality meat tenderness Muscle, Skeletal - physiology Phenethylamines - pharmacology ractopamine hydrochloride sensory properties subcutaneous fat Taste Terrestrial animal productions Vertebrates
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