To investigate the effect of small-scale cage aquaculture on Opsariichthys bidens Gunther in pond,the experiment placed plastic fishing rafts in the middle of the pond and tied cage to the polyethylene.They were divided into 3 groups(numbered M1,M2,and M3),with cage size of 2.0 m in length,2.0 m in width,and 1.5 m in depth.Each small-scale cage had 360 fish with initial body weight(13.90±0.55)g,and fed with a 41%crude protein puffed formula feed.After 66 days of small-scale cage culture,the results showed that the average survival rate were(70.88±4.83)%of 3 groups,the specific growth rate were(0.97±0.04)%·d-1,and the feed coefficient were(2.15±0.15).The body weight growth showed an exponential function:y=11.563e0.212 5x(R2=0.987 9).This experiment also observed that the feeding and growth of Opsariichthys bidens Gunther performed best when water temperatures were 26-30℃.
关键词
马口鱼/池塘小网箱/生长性能
Key words
Opsariichthys bidens Gunther/smal-scale cage aquaculture in pond/growth performances
维普
万方数据