Effect of Bovine Somatotropin on Metabolism of Lactating Dairy Cows: Energy and Nitrogen Utilization as Determined by Respiration Calorimetry

Effects of exogenous bovine somatotropin (bST) on energy and nitrogen utilization by high producing dairy cows were examined. Nine cows received bST (51.5 KI/d) or exipient (control) in a single reversal design involving 14-d treatment periods. Energy and nitrogen balances were measured in open-circ...

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Veröffentlicht in:	The Journal of nutrition 1988-08, Vol.118 (8), p.1024-1030
Hauptverfasser:	Tyrrell, Henry F., Brown, A.C.G., Reynolds, Paul J., Haaland, Gordon L., Bauman, Dale E., Peel, Colin J., Steinhour, Wayne D.
Format:	Artikel
Sprache:	eng
Schlagworte:	ANALISIS ANALYSE Animal Feed - analysis Animals bioenergetics Body Temperature Regulation - drug effects BOVIDAE BOVIN LAITIER Calorimetry Calorimetry, Indirect Cattle energy Energy Metabolism - drug effects Female GANADO DE LECHE Growth Hormone - pharmacology HORMONAS PITUITARIAS HORMONE HYPOPHYSAIRE LACTACION LACTATION Lactation - drug effects Lactose - analysis METABOLISME DE L'AZOTE METABOLISME ENERGETIQUE METABOLISMO DEL NITROGENO METABOLISMO ENERGETICO Milk - analysis Milk Proteins - analysis nitrogen Nitrogen - metabolism Nutritive Value - drug effects Oxygen Consumption Pregnancy RESPIRACION RESPIRATION somatotropin VACA VACHE
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