Spawning and separation method for cherax quadricarinatus

Abstract

The invention discloses a spawning and separation method for cherax quadricarinatus. The method specifically comprises the following steps of S1, preparation of hatching water, wherein tap water is filtered by 70-80-mesh nylon sieve cloth after being fully aerated; S2, mating of parent shrimps, wherein female and male shrimps which develop well, have no parasites on the body surfaces and are samein color are selected and enter a mating pond; S3, separation of the parent shrimps and eggs, wherein after the parent shrimps spawn, the parent shrimps and the eggs are flushed by adopting water flowwith the flow speed of 2 m / s, and the parent shrimps and the eggs are separated; S4, disinfection of the shrimp eggs, wherein the shrimp eggs prepared in S3 are placed in a sodium chloride solution and soaked for 5-10 minutes; S5, preservation of the shrimp eggs, wherein the eggs and the parent shrimps are placed in a storage bucket, the storage bucket is internally provided with a partition plate with fine holes uniformly distributed in the surface, and the partition plate divides the storage bucket into two spaces for storing the parent shrimps and the shrimp eggs respectively. By means ofthe method, the uniformity of shrimp spawning is ensured, and the shrimp spawning and hatching efficiency is improved; the shrimps are effectively sterilized in the spawning process by means of the method, and the survival rate and hatching rate of the shrimp eggs are increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for in vitro separation of red crayfish with eggs. Background technique [0002] With the rapid development of my country's economy and the continuous improvement of people's living standards, people now have higher and higher requirements for the quality of aquatic products. Shrimp, as a common aquatic product, plays an important role in people's lives. people's quality of life. [0003] Red-clawed crayfish is one of many species of shrimp, and red-clawed crayfish is an omnivorous animal; under natural conditions, it mainly feeds on organic debris, epiphytic algae, filamentous algae, roots, leaves and Debris; animal food likes to eat waterworms, earthworms, eggs, pupae, snails, mussels, fish, etc. of aquatic insects. [0004] However, during the breeding process of the existing red crayfish shrimp, the shrimp brooding and hatching techniques are not mature enough, ...

AI Technical Summary

Problems solved by technology

[0004] However, during the breeding process of the existing red crayfish shrimp, the shrimp brooding and hatching techniques are not mature enough, and the red crayfish often eats the eggs laid by other red crayfish after laying eggs too late, resulting in red crayfish The hatching rate is too low, and after the existing red crayfish eggs hatch, there will be too many bacteria and parasites in the hatching water, which will easily lead to the death of shrimp eggs and cause some inconvenience to people's breeding