Effects of tannins and additional rumen-protected protein on nitrate responses in dairy cows: Lactational performance, enteric methane emissions, nitrogen utilization, and blood metabolites.

R Peng, S E Räisänen, R Rauch, A Rytz, Y Zhang, X Ma, M A Barrientos-Blanco, K Wang, Z Zeng, W T Yip, M Bobkov, M Z Islam, E Soussan, M Kreuzer, M Niu