Breeding and separated planting and breeding method for large-size finished crayfishes

Abstract

The invention discloses a breeding and separated planting and breeding method for large-size finished crayfishes, and belongs to the technical field of aquaculture. The breeding and separated plantingand breeding method comprises the following steps of (1) transforming and optimizing of field engineering; (2) cleaning and drying of a rice field; (3) planting and maintaining of aquatic plants; (4)cultivating of high-quality young shrimps; (5) culturing of large-size finished shrimps; (6) feed feeding and management; (7) water quality management and disease green prevention and control; and (8) planting and breeding comprehensive management. According to the method, a batch of high-quality young shrimps and large-size finished shrimps can be harvested by utilizing the technologies of selecting and remaining high-quality parent shrimps, breeding and breeding separation and the like, so that the limitations that the young shrimps in a crayfish breeding pond are irregular in specification, the young shrimp storage amount cannot be accurately counted and the high-quality large-size finished shrimps cannot be bred in an existing rice shrimp breeding mode are avoided; and the problems that crayfishes produced in an existing crayfish and rice mode are irregular in specification, high in death rate, low in benefit and the like are solved, a rice field ecological system is fully utilized for comprehensive planting and breeding and green production, and the crayfish specification and quality are improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a breeding and separation breeding method for large-scale finished crayfish. Background technique [0002] Crayfish, scientifically known as Procambarus clarkii (Procambarus clarkii), originated in North America and was introduced to my country in the 1930s. The natural population of crayfish has strong reproductive ability, can live in various waters, has a wide range of food habits, and is suitable for breeding. At the same time, crayfish are popular in domestic and foreign markets because of their delicate meat, unique flavor and rich nutrition. [0003] Crayfish has become the most important farmed freshwater economic shrimp in my country. In particular, after crayfish were co-cropped with rice in paddy fields, the "shrimp-rice co-cropping" model has been greatly promoted across the country, which has achieved the effect of "one water for two purposes, two waters and tw...

AI Technical Summary

Problems solved by technology

This method solves the limitation that the existing breeding mode cannot produce large-scale and high-quality finished shrimps, and at the same time makes full use of ecological resources, promotes the early breeding of large-scale seedlings of crayfish, and avoids the existing rice field breeding or co-cultivation. The problems of low output efficiency, irregular specifications and high mortality of continuous cropping should make full use of the rice field ecosystem for comprehensive planting and green production, and improve the efficiency and quality of crayfish and rice

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