Micropterus salmoides breeding individual marking method

Abstract

The invention discloses a micropterus salmoides breeding individual marking method, and belongs to the technical field of fish breeding. The micropterus salmoides breeding individual marking method comprises the following steps of fish selection and temporary rearing, pretreatment, fish body anesthesia, fish body marking, mark detection, anesthesia recovery and medicated bath. Compared with the prior art, the micropterus salmoides breeding individual marking method has the beneficial effects that damage to marked fish bodies can be reduced to the maximum extent, the retention rate of the marks can be increased, meanwhile, it is guaranteed that the positions of the marks are not changed, the fishes are still easy to detect through a detector even if the fishes grow up, and the influence on normal activities of the fish bodies in the breeding process is extremely small; and in the breeding of the micropterus salmoides, the conditions of group source, pedigree, production parameters and the like of each fish are tracked by marking, and different polyculture individuals and families are identified during detection related to economic characters, so that the accuracy of genetic parameter estimation is improved, an identity marker is provided for a breeding parent of the fish, the mating controllability of the micropterus salmoides is realized, and the inbreeding decline is avoided.

Description

technical field [0001] The invention relates to the technical field of fish breeding, in particular to a method for marking individuals of largemouth bass breeding. Background technique [0002] Largemouth bass is native to the Mississippi River system in California, USA. It was introduced to mainland my country in 1983. Because of its delicious meat, rapid growth, and wide temperature adaptability, it has been continuously expanded in the national breeding scale and production in recent years. It has become an important species in my country. One of the freshwater aquaculture species, the industry is developing steadily. Since my country is not the origin of largemouth bass, most of the broodstock used in the seed production process are imported offspring. After generations of breeding and inbreeding, the germplasm degradation of the offspring seedlings is relatively serious, and the hatching rate and emergence rate have already appeared. The degradation of traits such as re...

AI Technical Summary

Problems solved by technology

In the prior art, the first is to use external markers, however, the external markers cause great damage to the fish body and are easy to fall off

The second is to inject electronic markers. However, the previous patents that used fish injection markers all used the method of intraperitoneal injection. After growing up, the muscle layer becomes thicker and viscera increases, and the detection efficiency of markers decreases accordingly. For example, "a method for marking individual grass carp selective breeding" (application number: CN201010582254.0, publication number: CN102077794A, has been submitted by Shen Yubang, Shanghai Ocean University, etc. Ineffective) adopts intraperitoneal injection, the survival rate after marking is 98.6%, and the detection rate is 98% after one year, "a kind of tilapia individual marking method" (Application No. : CN200810018667.9, authorization announcement number: CN101238800B, expired), the survival rate after marking is 99%, and the detection rate is 97% after one year, and the survival rate and detection rate still need to be improved

At the same time, the existing intraperitoneal injection method needs to take the fish out of the water and scan the abdomen to read the electronic tag