Polyculture of Litopenaeus vannamei and Cynoglossus semilaevis at different sizes in pond
In order to promote the sustainable development of Litopenaeus vannamei aquaculture indus-try,make full use of pond space,and increase the average output of aquatic products,a comparative test of pond polyculture of L.vannamei and Cynoglossus semilaevis of different stocking size was car-ried out.The stocking density of L.vannamei was 300,000 ind./hm,with body length over 1.0 cm.The stocking density of C.semilaevis was 120～180 ind./hm2 with stocking size of 400～600 g/ind..The results showed that the average yield of L.vannamei can be increased by about 20％compared with that of monoculture,and C.semilaevis with stocking size of 400～600 g/ind.can grow to market size with higher price,and its growth rate was about 25％faster than that of factory-farmed ones.In addition to the above advantages in yield and growth rate,C.semilaevis reared in ponds was closer to the wild ones in taste and nutritional value,and it can better play the role of biological control and re-duce the harm of diseases to L.vannamei in culture.
Litopenaeus vannameiCynoglossus semilaevispolyculturebiological control
万方数据
维普
