论文部分内容阅读
香鱼受精卵在淡水中的孵化率较咸水或半咸水中高出1倍多,仔稚鱼的饲养成活率咸水或半咸水比淡水中高。在饲养过程中采用轮虫、鸡蛋黄、枝角类和人工饵料交叉投喂,是保证仔稚鱼成活率的关键。对不同日龄的仔稚鱼进行淡化成活率不一样,日龄越大淡化的成活率相对越高,体质量达到0.5 g以上进行淡化效果最好。
The hatching rate of freshwater fish in fertilized eggs is more than double that in brackish water or brackish water. The survival rate of larval fish is higher than that in freshwater. In the breeding process using rotifers, egg yolk, claddings and artificial feeding cross-feeding, is to ensure the survival of larva fish larvae. The desalination of larvae of different age groups is not the same, the survival rate of desalination is higher when the age is older, and the desalination effect is best when the body mass reaches 0.5 g or more.