Use of tannin extract as a strategy to reduce methane in Nellore and Holstein cattle and its effect on intake, digestibility, microbial efficiency and ruminal fermentation - Perna Junior, Flavio; Nogueira, Ricardo Galbiatti Sandoval; Carvalho, Roberta Ferreira; Cassiano, Eduardo Cuellar Orlandi; Rodrigues, Paulo Henrique Mazza (Journal of Animal Physiology and Animal Nutrition, 2023)