Loach fry breeding device and breeding method

Abstract

The invention provides a loach seed cultivation device, comprising a cultivation bottom box, a silt layer laid on the upper surface of the bottom of the cultivation bottom box, and a cultivation net cage set in the cultivation bottom box, which is used to cover the cultivation of the cultivation net box. Box cover; wherein, the cultivation box cover includes a cover plate, a feeding device, and a habitat net; the feeding device includes a funnel-shaped feeding port and a cylindrical channel that is fixed at the lower end of the feeding port and communicates with the feeding port; the cylindrical channel is hollow inside, and the bottom The end is closed, and the side wall is provided with several through holes; the cover plate is provided with a through hole in the vertical direction; the cylindrical channel passes through the through hole on the cover plate, and the feeding port is snapped on the end surface of the cover plate; the bottom of the cylindrical channel is fixedly connected Perched mesh panels. Also provided is a kind of cultivation method using the above-mentioned cultivation device. The advantages of the present invention are to reduce the damage of fry while increasing the breeding density, and provide sufficient opening bait for the fry to improve the survival rate of the seedlings in the cultivation period of loach.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a loach seed cultivation device and a cultivation method. Background technique [0002] Loach meat is delicious, nutritious and has medicinal value. It is deeply loved by consumers and has a good market prospect. Due to environmental pollution and the expansion of market demand, natural loach can no longer meet the huge needs of the market, and artificial breeding has been developed. In the process of loach breeding, the survival rate of seedlings has always been the focus of attention of farmers. Since loach seedlings have a special outer gill stage after hatching to about 15 days old, the exposed gills are easily damaged or sink into the bottom of the pond. The silt causes suffocation and death. In order to increase the breeding capacity per unit area, the breeding density continues to increase, causing the seedlings to compete for habitats, and the seedlings pile up and...

AI Technical Summary

Problems solved by technology

In the process of loach breeding, the survival rate of seedlings has always been the focus of attention of farmers. Since loach seedlings have a special outer gill stage after hatching to about 15 days old, the exposed gills are easily damaged or sink into the bottom of the pond. The silt caused suffocation and death. In order to increase the breeding capacity per unit area, the breeding density continued to increase, causing the seedlings to compete for habitats, and the seedlings piled up and damaged the outer gills; thus affecting the survival rate of seedlings

At the same time, loach seedlings have strong selectivity to open bait, and have high requirements for the quantity. Insufficient food intake will cause growth retardation of seedlings

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