ORIGINAL PAPER
A note: an approach to estimate efficiency
of energy utilization for milk production
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The Royal Veterinary and Agricultural University, Department of Animal Science and Animal Health,
Bülowsvej 13, 1870 Frederiksberg C, Denmark
Publication date: 1995-02-16
J. Anim. Feed Sci. 1995;4(1):63-67
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ABSTRACT
Data from 9 balance experiments with lactating Jersey cows was used to evaluate the energetic
efficiency of metabolizable energy utilization for milk production (kl). It has been demonstrated that
kl values differ depending on the proportion between energy retained in fat (LFE) and protein
(LPE) in milk. A new approach to calculate kl values according to the equation
kl = 0.510 + 0.052 x LFE/LPE is presented.