Effects of rumen-protected methionine supplementation on production performance, apparent digestibility, blood parameters, and ruminal fermentation of lactating Holstein dairy cows - Yuanxiao Li; Jialin Wei; Mengying Dou; Shuai Liu; Bichuan Yan; Cuiyu Li; Muhammad Zahoor Khan; Yinghui Zhang; Jianxin Xiao (Frontiers in Veterinary Science, 2022)