Effect of substituting grass-clover silage with maize silage for dairy cows on nutrient digestibility, rumen metabolism, enteric methane emission and total carbon footprint

•Substituting grass-clover silage with maize silage for dairy cows led to.•15% lower methane emission per kg dry matter intake.•Only minor effects on digestibility of nutrients and no influence on rumen pH.•A higher carbon footprint from production of grass-clover silage than maize silage, but lower...

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