摘要
1999年 6月 9月 ,使用池塘 3口 (面积 1 2 1hm2 )培育草鱼种。经 87d ,总产 10 5 71kg ,其中草鱼种6 2 49kg ,出塘率 92 5 % ,饵料系数 1 5 7;鲢、鳙鱼种 432 2kg ,出塘率 71 3%。总产值 7 35万元 ,利润 4 15万元。同时对草鱼夏花至秋片不同生长阶段蛋白质需求量 ,以及颗粒饲料粒径与鱼口裂大小关系等进行了试验。
Grass carp, Ctenopharyngodon idellus ,silver carp, Hypophthalmichthys molitrix and bighead, Aristichthys nobilis ,fingerlings were reared in three ponds(total area,1.21hm 2)of the experiment farm of Fisheries Research Institute of Tieling City from June to September in 1999.Through rearing of the fingerlings in 87 day,total yields of the fingerlings were 10571kg,in which grass carp was 6249kg,survival rate 92 5%,food quotient 1 57;silver carp and bighead were 4322kg,survival rate 71.3%.Total value of output was 73500 yuan,the profit was 41500 yuan.Experiment and observation of optimum contents of the protein in pellet feeds needed by grass carp fingerlings,the size of the pellet and mouth of the fish,growth rate and so on was made during rearing of the fingerlings.
出处
《水产科学》
CAS
北大核心
2001年第1期22-24,共3页
Fisheries Science
