Effects of N-hydroxymethyl Methionine Calcium Supplementation Levels on Serum Nitrogenous Compounds and Free Amino Acids of Lactating Dairy Cows
FANG Wei, MA Ting-ting, CHEN Zhi-yuan, ZHAN Jin-shun, LI Hong-gen, HUO Yong-jiu, ZHAO Guo-qi
《中国畜牧兽医》 . 2017, (3): 717 -723 .  DOI: 10.16431/j.cnki.1671-7236.2017.03.014