Adding 0.% and 0.8% Yeast glucan in feed, and throws feeding days, the results showed that the length, weight and survival rate of Fertility crucian in first trial could raise to .0%, .7%, 0% and 7.7%, 8.7 %, 0%;
Adding 0.% and 0.8% Yeast glucan in feed, and throws feeding days, the results showed that the length, weight and survival rate of Fertility crucian in first trial could raise to .0%, .7%, 0% and 7.7%, 8.7 %, 0%;
饲料中添加0 %和0 8%的酵母多糖,投喂 d,其结果:第一次试验丰产鲫的体长、体重和细菌感染后的存活率分别比对照组提高了 0%、 7%、0%和7 7%、8 7 %、0%;