生物发酵饲料对奶牛舍内粪成分及菌群数和有害气体的影响
王 蒙,谢建林,詹 仰,张巧娥
生物发酵饲料对奶牛舍内粪成分及菌群数和有害气体的影响
Effects of Biological Fermented Feed on Fecal Composition and#br# Microbial Flora Count in Dairy Cows and Harmful Gases in Cow Barn
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