Industrial in-vitro procambarus clarkii breeding method

Abstract

The invention relates to an industrial in-vitro procambarus clarkii breeding method, and belongs to the technical field of freshwater economic shrimp fry breeding. The method comprises the following steps of performing selective purchasing or cultivating in a special pond to obtain berried shrimps, selecting and classifying the collected berried shrimps, then carrying out fertilized egg embryo in-vitro operation, and finally carrying out centralized artificial hatching on obtained in-vitro fertilized egg embryos. The treatment control of the circulating water quality is ensured in the hatchingprocess. According to the method, indoor controllable industrial large-scale breeding is performed on fertilized eggs of procambarus clarkii through in-vitro hatching, so that the production efficiency of artificial breeding is remarkably improved, the controllability of indoor artificial large-scale breeding of the procambarus clarkii and the planning property of production are realized, the artificial breeding and forming mode of the procambarus clarkii is innovated, and the upgrading development of procambarus clarkii fry breeding and breeding modes is effectively promoted.

Description

technical field [0001] The invention relates to a method for industrialized isolated seedlings of Procambarus clarkii, in particular to factory-scale artificial breeding of Procambarus clarkii, and belongs to the technical field of seed breeding of freshwater economic shrimps. Background technique [0002] Procambarus clarkii, commonly known as freshwater crayfish, belongs to Arthropoda, Crustacea, Crustacea, Subclass, Decapod, Cricketidae. It is native to North America. It was introduced to my country from Japan in 1929. It has been widely distributed in rivers, ponds and major water systems in my country. Among them, it has become an important economic species for freshwater aquaculture and comprehensive rice-fishery breeding in my country. With the increasing market consumption and export volume of Procambarus clarkii, artificial breeding, especially the rice shrimp breeding mode, has shown a blowout growth in recent years, and the scale and output of farming are expanding...

AI Technical Summary

Problems solved by technology

In addition, the seasonal centralized listing of finished shrimp in the conventional farming mode also greatly restricts the further sustainable development of the industry

[0003] At present, the seedlings of Procambarus clarkii mainly come from paddy fields and ponds by self-propagation and self-breeding, or by purchasing shrimp seedlings for stocking. Because the shrimp has a small amount of eggs, a high rate of self-mutilation, and a low survival rate of seedlings, this conventional breeding The output and efficiency of the method are low, and the benefit is poor. For example, the yield per mu of rice fields and ponds is only tens of thousands, and the output is only about two to three hundred catties. It can only be suitable for small-scale local breeding, and cannot adapt to large-scale professional production , and Procambarus clarkii has no industrialized specialized nursery farms or fine seed farms like river crabs and Macrobrachium rosenbergii. The technical model of industrialized and large-scale isolated seedlings is still blank. The key link that urgently needs to be solved for the further sustainable development of the Procambarus suberi aquaculture industry

[0004] In addition, in terms of finished shrimps, due to the obvious seasonality of Procambarus clarkii farming, the main breeding period is generally from April to May every year, feeding for 45-60 days to catching and selling from May to July. The model leads to the seasonal concentration of finished shrimps on the market, and the market price drops sharply, which directly affects the breeding benefits. However, in the spring, autumn and winter of the year (November to April of the following year), the price of finished shrimps rises sharply due to the scarcity of finished shrimps, that is, When there are shrimps in the market, the price is too low, but when there is market, there is no supply of finished shrimps in the market. This situation greatly restricts the further healthy and sustainable development of the industry