Correlated Response in Feed Efficiency Accompanying Selection for Milk Yield in Jerseys

Gross feed efficiency (milk energy output divided by energy consumed) was measured in 232 Jersey cows resulting from direct selection for milk yield and a control line of 121 daughters of 20 Jersey bulls taken randomly from commercial artificial insemination sampling programs in 1967. Data were coll...

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Veröffentlicht in:	Journal of dairy science 1986-09, Vol.69 (9), p.2370-2378
Hauptverfasser:	Smothers, C.D., Bell, B.R., Richardson, D.O., Hollon, B.F., Moore, E.D., Owen, J.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal Feed Animals BALANCE DE ENERGIA BILAN D'ENERGIE BOVIN LAITIER BREEDS Cattle - physiology COWS DAIRY CATTLE EFFICACITE ALIMENTAIRE EFICIENCIA DE CONVERSION DEL PIENSO ENERGY BALANCE FEED CONVERSION EFFICIENCY Female GANADO DE LECHE GENETICA GENETICS GENETIQUE Lactation Milk MILK YIELD Pregnancy RACE RAZAS RENDEMENT LAITIER RENDIMIENTO LECHERO SELECCION SELECTION VACA VACHE
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