Factors influencing the feed efficiency at milking cows - an experimental study at Holstein Friesian, Jersey and Black-Pied-Dairy cattle

Schmidt, E.; Schoenmuth, G.

Archiv fuer Tierzucht 40(1): 3-18

1997


Accession: 008673443

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Abstract
The possibilities of an indirect breeding influencing of the feed efficiency were investigated. The regression coefficients between the traits of efficiency gross efficiency, net efficiency, part of energy used for milk synthesis, energy yield per kg metabolic body weight and the traits milk yield, feed intake, back fat thickness, body weight at several times, body measurements are presented and discussed.