Freshwater crayfish controllable offspring in-phase breeding technique

A technology of Crayfish and fry, which is applied in the field of fry breeding of aquatic economic animals, can solve the problems of unstable production of cultivated Crayfish, unstable fry output, low survival rate of cultivated shrimp, etc.

Inactive Publication Date: 2008-10-15
唐建清 +2
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Problems solved by technology

The seed source of cultured Procambarus clarkii is mainly fishing in natural waters or natural breeding in aquaculture ponds. The seed yield is extremely unstable and the specifications are uneven, resulting in serious mutual killings in the production process. The survival rate of cultured shrimp Due to the low density and quantity of seedlings in the breeding ponds, it is difficult to control the seedling production management, which makes the production of Procambarus clarkii very unstable and brings great difficulties to farmers and fishermen.

Method used

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Embodiment Construction

[0005] 1. Seed breeding pond selection

[0006] For the seed ponds for breeding Procambarus clarkii seedlings in special ponds, it is required to choose an earthen pond with an area of ​​1-3 mu, which should not be too large. The specific size of the area can be flexibly controlled depending on the production scale. According to the burrowing habits of Procambarus clarkii, it is better to have a natural mound in the pool, which is conducive to broodstock burrowing, mating and spawning. The water depth in the deep water area should be more than 1m, the pool ridge should be more than 1.5m wide, impermeable and leak-proof, the soil quality should be clay, and the hole of Procambarus clarkii will not collapse after the hole is drilled, there is a convenient drainage system, and the transportation is convenient.

[0007] 2. Pond preparation before broodstock stocking

[0008] The preparation of the pond should be completed before August. After the seedling pond is selected, it mus...

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Abstract

The invention discloses a method for fry and fingerling rearing of aquatic animals, particularly a synchronized fry and fingerling rearing method of Procambarus Clarkii and an application thereof. The method is based on the mating and spawning habits of Procambarus Clarkii, and controls the synchronous development of parent prawns, fry production time, breeding density and fry and fingerling specifications by modifying the fry and fingerling rearing pool, transplanting aquatic weed and strictly controlling water level in fall and winter.

Description

Technical field [0001] The invention relates to a seed breeding technology of aquatic economic animals, in particular to a controllable seed simultaneous breeding technology of Procambarus clarkii and its application. Background technique [0002] At present, the methods for cultivating Procambarus clarkii mainly include pond and larger polder pond cultivation, and paddy field continuous cropping cultivation. The seed source of cultured Procambarus clarkii is mainly fishing in natural waters or natural breeding in aquaculture ponds. The seed yield is extremely unstable and the specifications are uneven, resulting in serious mutual killings in the production process. The survival rate of cultured shrimp Low seedling density and quantity in breeding ponds are difficult to control, and seed production management cannot be carried out, which makes the production of Procambarus clarkii very unstable and brings great difficulties to farmers and fishermen. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 唐建清夏爱军严维辉黄成薛晖韩飞彭刚
Owner 唐建清
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