Effect of replacement of grass silage with maize silage on milk production and methane emissions by dairy cows fed diets with or without rapeseed oil supplementation
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ABSTRACT: Methane emissions from dairy cows fed grass or corn silage diets supplemented with rapeseed oil were evaluated. The partial replacement of GS with MS decreased the total dry matter (DM), nutrients intake, milk yields or nutrients digestibility, among others, but did not affect the daily CH4 emissions or strongly affect the microbial composition. The supplementation of rapeseed oil also decreased total DM, nutrients intake and altered the milk composition, but also decreased the CH4 emissions. Analysis of the microbial composition revealed an increase in the relative abundance of Methanobrevibacter and changes in the bacterial population.
PROVIDER: PRJEB43834 | ENA |
REPOSITORIES: ENA
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