论文部分内容阅读
黄颡鱼急性毒性试验 ,96h时 pH =8 2试验组有半数死亡 ,pH =3 4试验组有 42 9%的试验鱼死亡 ,说明黄颡鱼耐酸能力较强。黄颡鱼生长试验 ,pH =7 6组增重最多 ,而 pH =5 .2组增重最少 ,在pH 5 2~ 7 6范围内生长和pH密切相关 ,最适于黄颡鱼生长的 pH范围为 7 0~ 7 6。
Yellow catfish acute toxicity test, 96 h pH = 8 2 half of the test group died, pH = 3 4 42 9% of the test fish died, indicating that yellow catfish strong acid tolerance. The growth of yellow catfish showed that the highest weight gain in pH = 7 6 group and the lowest in pH = 5. 2 group were the least, and their growth and pH were closely related in pH 5 2 ~ 7 6, which was the most suitable for the growth of catfish The range is 70 ~ 7 6.