Efficient egg-carried hatching device for procambarus clarkii and experimental method

Abstract

The invention discloses an efficient egg-carried hatching device for procambarus clarkii and an experimental method. A water inlet is formed in a higher position of a side surface of one side of a boxbody, a water outlet is formed in the bottom of a side surface of the other side of the box body, microporous aeration equipment comprises an oxygen inlet pipe and microporous aeration bubble strips,the oxygen inlet pipe is arranged outside the box body, the microporous aeration bubble strips are arranged on the bottom of the interior of the box body, a PVC square pipe is arranged on the bottomof the interior of the box body, first storage racks are arranged on the inner walls of two sides of the PVC square pipe, second storage racks are arranged below the first storage racks on the two sides of the PVC square pipe, and plant fibers are arranged on the first storage racks and the second storage racks. The accommodation capacity of the egg-carried procambarus clarkii in unit area can beincreased by the aid of the multilayer egg-carried hatching device, the activity area of juvenile procambarus clarkii can be enlarged by the aid of limited space, the device is convenient to transportand easy to operate, the breeding habitat of the egg-carried procambarus clarkii and juvenile procambarus clarkii can be improved, and the hatching rate of eggs, the hatching amount in unit area andthe quality of the juvenile procambarus clarkii are improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a high-efficiency ovulation hatching device and an experimental method for Procambarus clarkii. Background technique [0002] Procambarus clarkii belongs to the family Cryridae of Decapod Crustacea. Due to the rapid development of the crayfish catering industry in recent years, the market demand for Procambarus clarkii is large. At present, only in Hubei Province, the demand for crayfish seed has reached 100. 100 million tails, but the shortage of seedlings in the existing market leads to high prices of seedlings and high breeding costs for fishermen, which limits the development of the Procambarus clarkii aquaculture industry; [0003] The main reason for the insufficient seed supply in the existing Procambarus clarkii seedling farms is that the holding capacity of brood shrimp per unit water body is low, generally no more than 16 tails / m2, and the hatching rate and emergenc...

AI Technical Summary

Problems solved by technology

[0002] Procambarus clarkii belongs to the family Cryridae of Decapod Crustacea. Due to the rapid development of the crayfish catering industry in recent years, the market demand for Procambarus clarkii is large. At present, only in Hubei Province, the demand for crayfish seed has reached 100. 100 million tails, but the shortage of seedlings in the existing market leads to high prices of seedlings and high breeding costs for fishermen, which limits the development of the Procambarus clarkii aquaculture industry;

[0003] The main reason for the insufficient supply of seedlings in the existing Procambarus clarkii seedling farms is that the holding capacity of ovipositous shrimp per unit water body is low, generally not more than 16 tails / m2, and the hatching rate and emergence rate of ovipositous shrimp are low

Procambarus clarkii all move at the bottom of the water body, but the bottom area of ​​a breeding site is limited, and the upper area of ​​the breeding site is almost idle, wasting resources. In order to initially solve this problem, most farmers will plant water in cement ponds. Plants such as gourds provide a way for Procambarus clarkii to use more space inside the cement pond, but planting a large number of water hyacinths will lead to excessive oxygen consumption in the pond at night, and the bottom of the breeding water body is hypoxic. Oxygen deficiency affects the survival rate and hatching rate of broodstock. If only a small amount of aquatic plants are planted, the effect of making full use of the breeding space cannot be achieved, and Procambarus clarkii is prone to inter-individual differences during the hatching of eggs. The phenomenon of mutual attack, therefore, the present invention proposes a kind of high-efficiency brood hatching device and experimental method of Procambarus clarkii to solve the problems existing in the prior art

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