Effects of prenatal testosterone treatment and postnatal steroid implantation on growth performance and carcass traits of heifers and steers

Two experiments were conducted to evaluate the effect of prenatal testosterone treatment in combination with postnatal steroid implantation (Exp. 1) and to assess the effect of time of prenatal testosterone treatment in conjunction with postnatal steroid implantation (Exp. 2) on animal performance a...

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Veröffentlicht in:	Journal of animal science 1990-08, Vol.68 (8), p.2198-2207
Hauptverfasser:	DeHaan, K.C. (University of Illinois, Urbana), Berger, L.L, Kesler, D.J, McKeith, F.K, Faulkner, D.B, Cmarik, G.F, Favero, R.J
Format:	Artikel
Sprache:	eng
Schlagworte:	Adipose Tissue - growth & development Animals Biological and medical sciences Birth Weight - drug effects BOEUF BUEY BULLOCKS CARCASS COMPOSITION Cattle - growth & development COMPOSICION DE LA CANAL COMPOSITION DE LA CARCASSE CRECIMIENTO CROISSANCE Drug Implants EFFICACITE ALIMENTAIRE EFICIENCIA DE CONVERSION DEL PIENSO Estradiol - administration & dosage Estradiol - pharmacology ESTROGENOS FEED CONVERSION EFFICIENCY Female Fundamental and applied biological sciences. Psychology GENISSE GESTACION GESTATION GROWTH HEIFERS IMPLANTACION IMPLANTATION Male NOVILLA OESTROGENE OESTROGENS Orchiectomy - veterinary PREGNANCY Progesterone - administration & dosage Progesterone - pharmacology PUERPERIO PUERPERIUM Random Allocation Steroid hormones. Cholecalciferol derivatives TESTOSTERONAS TESTOSTERONE Testosterone - administration & dosage Testosterone - pharmacology Vertebrates: endocrinology Weight Gain - drug effects
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