Effect of Copper on Immune Ability of Dairy Cows

WANG Xiao-ya, JIA Da-qing, HAN Yang, WANG Jian-fa, WU Rui

Animal Husbandry and Feed Science . 2019, (4): 18 -20 . DOI: 10.12160/j.issn.1672-5190.2019.04.005