Micropterus salmoides fingerling out-of-season cultivation method

Abstract

The invention discloses a micropterus salmoides fingerling out-of-season cultivation method which comprises the following steps: S1, pond preparation: the area of a pond is 5-8 mu and after pond wateris drained, the thickness of sludge in the pond is kept at 8-12 cm, about 5-15 cm of accumulated water is left in the pond, quick lime is used for cleaning the pond at 100-150 Kg / mu, and after 7-14 days, water is injected into the pond, the water injection depth is 0.8-1.8 m, and a net cage is arranged in the pond. The micropterus salmoides SHUIHUA in autumn are cultured through the net cages, and the survival rate of the SHUIHUA can be effectively increased; secondly, the bait utilization rate can be increased through cultivation in a cement pond, and the fry physique is effectively enhanced; finally, proper growth temperature is provided for the fish fries in winter through a greenhouse and a boiler temperature control technology, and therefore it is guaranteed that the fish fries are kept in a rapid growth state all the time to be cultured into large-size fish fries. The micropterus salmoides large-size fingerling out-of-season breeding technology provides technical support for production of micropterus salmoides large-size fingerlings, and meanwhile has great significance in promoting transformation and upgrading of micropterus salmoides breeding modes in northern areas.

Description

technical field [0001] The invention belongs to the technical field of fish species cultivation in aquaculture, and in particular relates to a method for off-season cultivation of large-scale California perch species. Background technique [0002] California perch scientific name largemouth bass ( Micropterus salmoides ), belonging to the order Perciformes, the family Sunfish, and the genus Black Perch. It is native to the Mississippi River system in California, USA. It was introduced into my country from Guangdong Province in 1983 to carry out breeding experiments, and it was successfully artificially propagated in 1985. Because of its tender meat, delicious taste, no intermuscular thorns, fast growth, easy to catch, wide temperature tolerance and strong disease resistance, it has gradually been recognized by consumers and farmers and has become a valuable economic fish. At present, domestic California perch farming is concentrated in southern provinces such as Guangdong, ...

AI Technical Summary

Problems solved by technology

However, there is a huge gap in the number of large-sized fish species with a size of 10-15 cm in the season in the northern region, and it is "difficult to find one seedling", and the price is high, which cannot meet the needs of breeding

Therefore, if we can develop the breeding technology of large-scale fish species that are cultivated in ponds in spring, it will effectively fill the gap in the market for large-scale species, and greatly solve the current technical problem that California perch in the northern region cannot reach the market size in the year of breeding.