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The effects of energy intake on responses to metabolisable protein in dairy cows

Published online by Cambridge University Press:  05 November 2021

H Christie ,
G E Emmans ,
J D Oldham  and
D J Roberts
H Christie
Affiliation:
SAC Food Systems Division, Crichton Royal Farm
G E Emmans
Affiliation:
SAC Animal Biology Division, Bush Estate, Penicuik, Midlothian, EH26 0QB
J D Oldham
Affiliation:
SAC Animal Biology Division, Bush Estate, Penicuik, Midlothian, EH26 0QB
D J Roberts
Affiliation:
SAC Food Systems Division, Crichton Royal Farm
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Extract

Previous work (Metcalf et al 1996) has suggested that, even for cows when ME and MP supplies were balanced, the relationship between MP intake and net protein output at higher levels of feeding and production differs from that assumed in the MP system. This experiment was designed to test the concept that the efficiency of MP use for milk protein secretion is limited when metabolisable energy (ME) is limiting.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 20
Copyright
Copyright © The British Society of Animal Science 1998

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References

Metcalf, J A, Mansbridge, R J, Blake, J S, Newbold, J R and Oldham, J D (1997). Examining the metabolisable protein system at ideal protein:energy rations in dairy cows Proceedings of the British Society of Animal Science, 1997. p83.Google Scholar