Breeding method of low salt tolerant bostrychus sinensis new species

Abstract

The invention discloses a breeding method of a low salt tolerant bostrychus sinensis new species. The breeding method comprises the steps of pond preparation: arranging an inlet-outlet water pipe with a filter disc on a pond, exposing the pond to the sunlight, pouring water into the pond, carrying out disinfection, planting aquatic plants, and placing slow release nutrient substances and a small shelter; and fry putting: controlling the putting density to be 5500 fries / mu, after fry putting, carrying out fasting for 2 days, feeding fodder to the fries on the third day, carrying out oxygenation on the pond water 10 min to 30 min before and after bostrychus sinensis fodder supply each time, controlling the concentration of dissolved oxygen in the water body to be 10.5 mg / L, and stopping inflow and outflow of water in the pond within 25 min of bostrychus sinensis fodder feeding. According to the breeding method, an optimized breeding environment is matched with optimally designed formula feed, so that growth of bostrychus sinensis is effectively promoted, salt tolerance is improved, the problem that the survival rate is affected due to the fact that large quantities of bostrychus sinensis dies under the situation that the environment is not allowable is avoided, the immunocompetence is improved, and stress recovery is facilitated.

Description

technical field [0001] The invention relates to a method for cultivating fish, in particular to a method for cultivating a new low-salt-tolerant Chinese Wutang carp. [0002] technical background [0003] Chinese snakeheads belong to Osteichthyes, Perciformes, Goby suborders, and Channaidae, commonly known as "mullet", "mud fish", "earth fish", etc., and are a kind of warm-water shallow sea fish. It is distributed in salt water areas such as coastal areas, estuaries, and harbors in southern my country. It likes to inhabit sandy mud bottom or reef areas, and lives in caves. Channa sinensis is a rare marine fish with delicate meat, delicious taste, rich nutrition and high economic value. In recent years, the success of artificial breeding of Channa sinensis has laid a foundation for the development of Channa sinensis aquaculture, but the existing breeding methods are not suitable for the cultivation of Channa sinensis, such as the prior art authorization announcement number: ...

AI Technical Summary

Problems solved by technology

However, its salt tolerance is low, and it is easy to cause a large number of deaths when the environment is not allowed, thereby affecting the survival rate. The invention still needs to be improved in terms of weight gain rate and meat sensory effect