Ractopamine hydrochloride improves growth performance and carcass composition in immunocastrated boars, intact boars, and gilts

The β-agonist ractopamine is a dietary ingredient that improves growth and increases the lean mass with little change in fat mass in gilts and barrows. Limited data in boars indicate that dietary ractopamine may increase lean tissue and decrease fat deposition, whereas there are no data for immunoca...

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Veröffentlicht in:	Journal of animal science Jg. 87; H. 11; S. 3536 - 3543
Hauptverfasser:	Rikard-Bell, C, Curtis, M.A, van Barneveld, R.J, Mullan, B.P, Edwards, A.C, Gannon, N.J, Henman, D.J, Hughes, P.E, Dunshea, F.R
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Champaign, IL American Society of Animal Science 01.11.2009 Am Soc Animal Sci Oxford University Press
Schlagworte:	Animal productions Animal sciences Animals backfat barrows beta-adrenergic agonists Biological and medical sciences boars body composition body weight Breeding of animals carcass composition carcass weight Castration Castration - veterinary dosage dose response drug effects Feed conversion feed intake Female Food Additives Food Additives - pharmacology Food industries Fundamental and applied biological sciences. Psychology gender differences Genotype & phenotype gilts growth & development Growth Substances Growth Substances - pharmacology Hogs immunologic techniques lean body mass liveweight gain Male Meat and meat product industries medicated feeds pharmacology Phenethylamines Phenethylamines - pharmacology physiology Sex Factors Sus scrofa Sus scrofa - growth & development Sus scrofa - physiology Terrestrial animal productions testes thickness Vertebrates veterinary Weight Gain Weight Gain - drug effects Farming animal Ractopamine Growth Meat product Carcass Body composition Pig boar Vertebrata Meat animals Mammalia Chemical composition Artiodactyla immunocastration Performance Ungulata
ISSN:	0021-8812, 1525-3163, 1525-3163
Online-Zugang:	Volltext
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