Supplementary material for: Milk production and methane emissions from dairy cows fed silages from different grassland species and harvesting frequencies

The supplementary material provides information for the article published in Journal of Dairy Science, entitled \"Milk production and methane emissions from dairy cows fed silages from different grassland species and harvesting frequencies\". This study evaluated how silages from different grassland species and harvesting frequencies affect feed intake, milk production, and methane (CH4) emission in dairy cows. The experiment design was a cyclic change over design, including 5 treatments and 4 periods, which is described in supplementary tables and figure. The cutting date, phenological development stage, chemical composition and fermentation profiles of the silages is also provided in the supplemental material.