Method for inducing Atrina pectinata Linnaeus to quickly spawn

Abstract

The invention discloses a method for inducing Atrina pectinata Linnaeus to quickly spawn, which is characterized by comprising the following steps: adding 100-300ml of bleaching liquid containing 8-12% of chlorine in each cube of water body in spawning pond water; processing for 2-3 hours; adding sodium thiosulfate for neutralizing; detecting by a starch potassium iodide solution to prove that no chlorine exists; aerating for 1-2 hours; then, adding the processed spawning water in Atrina pectinata Linnaeus seed shellfish which is dried in the shade and is stimulated by running water; and after 1-2 hours, spawning and discharging sperms on a large batch, wherein the spawning induction rate is above 80%. Seawater processed with the method is high in spawning speed and good in spawning quality, and the spawning seawater is sterilized to reduce influence on incubation by microorganisms, and the incubation speed of germ cells is improved.

Description

technical field [0001] The invention relates to a method for shellfish to lay eggs, in particular to a method for rapid laying of eggs by the clams. Background technique [0002] As a large edible mollusk with high economic value, it is distributed in the north and south coasts of my country. The posterior adductor muscle of Cujiang yam is extremely thick, and can be dried into "Jiang yaozhu". The meat is tender, fat and white, and rich in nutrition. It is an extremely rare seafood treasure. In recent years, resources have been greatly reduced due to overfishing, which is far from meeting the needs of domestic and foreign markets. It is urgent to carry out artificial seedling cultivation and resource restoration work for P. Completely solve, cause one of the main reasons of artificial seedling failure to be the difficulty of laying eggs, seedling without eggs becomes cooking without rice, how to solve the problem of laying eggs is the main bottleneck technology of artificia...

AI Technical Summary

Problems solved by technology

In recent years, resources have been greatly reduced due to overfishing, which is far from meeting the needs of domestic and foreign markets. It is urgent to carry out artificial seedling cultivation and resource restoration work for P. Completely solved, one of the main reasons for the failure of artificial seedlings is the difficulty of spawning. Eggless seedlings become a meal without rice. How to solve the problem of spawning is the main bottleneck technology of artificial seedlings of Cujiang.

At present, there are many methods for inducing shellfish spawning, mainly physical and chemical methods, but these methods have poor effect on inducing spawning for large shellfish such as C. Eggs and sperm cannot be induced, which limits the breeding and seedling production of P. chinensis seedlings. Therefore, a fast and effective induction method is urgently needed to promote the rapid oviposition and ejaculation of P. chinensis.