Article
Heritability estimates for enteric methane emissions from Holstein cattle measured using noninvasive methods.
Journal of dairy science - 1 Mar 2016
Lassen Jan, Løvendahl Peter
Abstract excerpt
The objective of this study was to estimate heritability of enteric methane emissions from dairy cattle. Methane (CH4) and CO2 were measured with a portable air-sampler and analyzer unit based on Fourier transform infrared detection. Data were collected on 3,121 Holstein dairy cows from 20 herds using automatic milking systems. Three CH4 phenotypes were acquired: the ratio between CH4 and CO2 in the breath of the...
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