Method for improving fishing survival rate of nibea albiflora

Abstract

The invention relates to a method for improving the fishing survival rate of a nibea albiflora (Richardson). The fished nibea albiflora is taken as the parent of artificial breeding. The invention belongs to the technical field of agriculture marine culture. The invention selects the nibea albiflora which is fished with longline fishing; the hook in the fished nibea albiflora is taken down in a container filling with water; an air tube (medical infusion venting needle tube) is used for puncturing into the belly of the fish from the base pectoral fin of the fish, wherein, the puncturing depth is from 0.5 cm to 1.0 cm according to the size of the fish; the belly of fish is lightly pressed to release air; and the air-released fish is put into a seawater container with 0.1 mg / kg oxytetracycline to have a medical bath and charge air for 1-2 hours. The survival rate of the nibea albiflora which is processed by the method can reach more than 90 %. The invention provides the parent of culturing seeding for artificially culturing the nibea albiflora.

Description

technical field [0001] The invention relates to a method for improving the survival rate of croaker croaker, and the caught fish are used as broodstock for artificial breeding, which belongs to the technical field of agricultural mariculture. Background technique [0002] China is a major producer and exporter of aquatic products in the world, and its total output and aquaculture output both rank first in the world. In the case of declining marine fishery resources, the development of aquaculture is the main direction. The bulk aquaculture products in the south include Penaeus vannamei and Tilapia. In the north, there are flounder, etc.; however, the wild fish with high economic value and their breeding technology are still under development, which is mainly limited by the fishing of broodstock and the corresponding nursery technology and the marine environment of the sea area; Fishes of the genus family are very popular, such as large and small yellow croakers. In recent ye...

AI Technical Summary

Problems solved by technology

[0002] China is a major producer and exporter of aquatic products in the world, and its total output and aquaculture output both rank first in the world. In the case of declining marine fishery resources, the development of aquaculture is the main direction. The bulk aquaculture products in the south include Penaeus vannamei and Tilapia. In the north, there are flounder, etc.; however, the wild fish with high economic value and their breeding technology are still under development, which is mainly limited by the fishing of broodstock and the corresponding nursery technology and the marine environment of the sea area; Fishes of the genus family are very popular, such as large and small yellow croakers. In recent years, they have paid great attention to the species of croaker Nibea albifora (Richardson). , rich in nutrients, and its swim bladder has the effect of fitness and nourishing. It is a kind of economic fish with high practical value. However, due to the impact of resources and marine environment, the output has declined. Therefore, through artificial breeding and cage culture, yellow croaker can To meet the needs of people and the market; the first step is to have yellow croakers as the parent of artificial breeding, but due to the influence of the croaker's own physiological structure, the caught croakers will die in all likelihood. This is because this kind of fish has a swim bladder. When caught from a water depth of 40-50 meters, the swim bladder is affected by the pressure difference due to the change of water pressure, and the swim bladder will swell and die. After the fish is caught, the survival rate is very low. , first of all, it is necessary to solve the technology and method of improving the survival rate of yellow croaker after being caught.