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在饲料中添加0、200、400、600、800、1000、1400、1800mg/kg的牛磺酸,饲养草鱼种30d,研究牛磺酸对草鱼的生长效应。结果表明:①牛磺酸促进草鱼生长(除1800mg/kg添加量外)。添加量为600mg/kg时,特定生长率(SGR)、饲料转化率(FCR)和蛋白质效率表现为最好;②饲料中添加牛磺酸后,草鱼体水分含量下降,体脂增加,体蛋白含量增加,灰分含量、内脏/体重比、肥满度各试验组之间差异不显著。根据生产性能指标综合评定,我们建议草鱼饲料中牛磺酸最适添加量为600mg/kg。
0,200,400,600,800,1000,1400,1800mg / kg of taurine were added to feed, and grass carp was bred for 30 days to study the growth effect of taurine on grass carp. The results showed that: ① Taurine promoted the growth of grass carp (except for the addition of 1800mg / kg). The specific growth rate (SGR), feed conversion rate (FCR) and protein efficiency were the best when the dosage was 600mg / kg. (2) After addition of taurine, the water content of grass carp decreased, body fat increased, body protein There was no significant difference between the experimental groups in content, ash content, visceral / body weight ratio and fatness. According to comprehensive evaluation of production performance indicators, we recommend that the optimal dosage of taurine in grass carp feed is 600mg / kg.