Lactational performance, rumen fermentation and enteric methane emission of dairy cows fed high-amylase corn silage.

S.F. Cueva, H.A. Stefenoni, A. Melgar, S.E. Räisänen, C.F.A. Lage, D.E. Wasson, M.E. Fetter & A.N. Hristov
The current study investigated the effect of a high-amylase corn silage on lactational performance, enteric methane (CH4) emission, and rumen fermentation of lactating dairy cows. Following a 2-wk covariate period, 48 Holstein cows were blocked based on parity, days-in-milk, milk yield (MY), and CH4 emission. Cows were randomly assigned to 1 of 2 treatments in an 8-wk randomized complete block design experiment: (1) control corn silage (CON) from an isogenic corn without a-amylase trait and...
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