Milk 13C and 15N discriminations as biomarkers of feed efficiency and energy status in early lactation cows

Y.T. Chen, J.P. McNamara,G.L. Ma,J.H. Harrison,E. Block

Animal Feed Science and Technology（2020）

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摘要

•Energy balance alters milk 13C and 15N discriminations of early lactating cows.•Milk 13C and 15N discriminations highly correlate with carbon and nitrogen feed utilization efficiency for milk production.•Milk 13C and 15N discriminations indicate effects of body fat and protein mobilizations on milk component yields.

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关键词

C,N,FUE,C-FUE,N-FUE,CP,DM,FA,ADF,NDF,SNF,BW

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