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本文作者对引起乳牛腹泻及死亡的混合饲料进行了分析,取3份20 g样品,分别加入到180 ml无菌水(5℃)中混合2分钟,稀释至10~(-5),以0.2 ml/皿涂于含有链霉素(25mg/L)和四环素(1.25 mg/L)的12个土豆
The authors analyzed mixed diets that caused diarrhea and death in dairy cows. Three 20 g samples were added to 180 ml of sterile water (5 ° C) for 2 minutes, diluted to 10 -5, ml / dish to 12 potatoes containing streptomycin (25 mg / L) and tetracycline (1.25 mg / L)