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对均重为1 25g和3 19g两种规格黄颡鱼1冬龄鱼种的生长研究表明:在自然条件下,人工投喂配合饲料,经过28d培育,体重分别由1 25g增至1 87g,3 19g增至7 67g,平均日增重分别为0 022g和0 160g,总成活率为92 62%。其体长与体重呈正相关。鱼种体重达3g以上时,生长速度加快,且个体间生长速度的差异较大。在人工投喂配合饲料的条件下,鱼种对饲料中粗蛋白含量的要求约为38 54%。
The growth of two species of Pelteobagrus fulvidraco 1 winter-age fingerlings with average weight of 1 25g and 3 19g showed that under the natural conditions, the artificial feed was fed for 28 days and the body weight was increased from 125g to 187g, 3 19g increased to 7 67g, the average daily gain were 0 022g and 0 160g, the total survival rate was 92 62%. Body length and weight were positively correlated. Fish species weighing more than 3g, the growth rate to speed up, and the difference between the growth rate of individuals larger. Under the condition of artificial feed, the requirement of crude protein in feed by the fish species is about 38.54%.