Method for marking tilapia individual

Abstract

The invention belonging to the field of aquaculture technology relates to a labelling method of tilapia individual, particularly to injecting PIT marker into tilapia body for labelling individual. The invention is characterized in that: at first dip the marker and the injector thereof into disinfection solution; anaesthetize tilapia with anesthesia; put the disinfected marker into injector, puncture the abdominal wall from the abdominal rib side which is next to the front part of the tilapia anus with the syringe needle, push the syringe needle into abdominal cavity along abdominal wall; whenthe syringe needle is in the abdominal cavity, push the syringe slightly, when the marker is in the abdominal cavity of tilapia, extract the syringe needle. Labelling the tilapia individual in vivo according to the invention can improve the marker retention rate and valid identification rate, for the marker is not shed; the fish body damage degree during the labelling process is little, which does not affect normal activities of labelling fish and has very little effect on tilapia culture.

Description

technical field [0001] The invention relates to a method for individual marking of tilapias, in particular injecting PIT markers into tilapias for individual marking, and belongs to the technical field of aquaculture. Background technique [0002] In the prior art, when carrying out the individual mark of tilapia, usually adopt the external type mark, promptly hang on the fish body of tilapia with numbered signboard. Commonly used external tags include Floy tags and T-type tags. The former uses a needle and thread to pass through the back of the tilapia to hang the tag on the surface of the tilapia, and the latter uses a tag gun to mark the tag through the tail of the tilapia. [0003] Both of these two kinds of external markers need to penetrate the body of tilapia, so the damage to tilapia is relatively large; the other two markers either have a thin line or a short piece of thin plastic rod left on the fish body. During the breeding process, these thin wires or short rod...

AI Technical Summary

Problems solved by technology

[0003] Both of these two types of external markers need to penetrate the body of the tilapia, so the damage to the tilapia is relatively large; the other two markers either have a thin line or a short piece of thin plastic rod left on the fish body. During the breeding process, these thin wires or short rods will be entangled with each other or around other things in the pond, which will not only cause the marks to fall off, but also affect the normal activities of the tilapia and even cause damage to the fish body, which will be unfavorable to the breeding results influences