摘要
为解决水库投放异育银鲫鱼种的需要，利用自繁的异有银鲫夏花在10个共4．27hm2池塘中进行了高密度育种技术研究。经60d饲养，在467250－520710尾／hm2的高密度下，成活率80％，饵料系数22，平均单产2445kg／hm2，最高单产3800kg／hm2，平均个体重6．3g，平均体长5．7cm，最大个体重18．5g，最大体长8．4cm。对高密度饲养条件下异育银鲫体长和体重关系作了分析，关系式为：W＝0．011L3．62。
According to the breeding characteristic of Carassius auratus gibelio fingerling in largr reservoir, we studied the culture technology in 10 ponds of 4.27hm2, and the density of culture in 1. 0hm2 is 10 ~ 11 times that of ordinary density. The results were as follows: Reared 60 days con-tinuously, the average weight of fingerling was 6. 3g, the max single 18. 5g, the average body length was 5. 7cm, the max single 8 .4cm, survival 80%, food coefficient 2. 2, the average production was 2445kg/hm2, the high production was 3800kg/hm2. The growth equation of fingerling was W =0. 011 L3.62
出处
《水产学杂志》
CAS
1999年第2期88-91,共4页
Chinese Journal of Fisheries
关键词
异育银鲫
高密度育种技术
饵料系数
成活率
Carassius auratus gibelio
High Density
Fingerling Culture Technology
