Natural spawning and hatching dual-function equipment and artificial mass propagation method for erythroculter ilishaeformis

Abstract

The invention discloses natural spawning and hatching dual-function equipment and an artificial mass propagation method for erythroculter ilishaeformis. The artificial mass propagation method is characterized by comprising steps of arranging four large domestic fish spawning ponds, laying microporous aeration pipelines at pond bottoms of the spawning ponds, sequentially arranging support frames, meshes and table nets on the inner walls attached to the spawning ponds, forming water inlet pipe orifices in side walls and forming water outlet and fish fry outlet pipe orifices in the pond bottoms; leading the water outlet and fish fry outlet pipe orifices out of the ponds via concealed channels and mounting a sleeve elbow on each water outlet and fish fry outlet pipe orifice; allowing vertical plastic pipes for adjusting the water level of the spawning ponds to sleeve the sleeve elbows, or allowing water delivery and fish fry conveying pipelines to sleeve the sleeve elbows. The water delivery and fish fry conveying pipelines are led into circular hatching channels and are used for leading hatched fish fry into the circular hatching channels. The natural spawning and hatching dual-function equipment and the artificial mass propagation method have the advantages that the equipment comprises the four idle large domestic fish spawning ponds and additional components which are assemblies easy to disassemble and assemble, and spawning and hatching of the erythroculter ilishaeformis can be continuously completed by the aid of the equipment; 50-100 groups of parent erythroculter ilishaeformis can be generally subjected to spawning induction in each batch, and the mass propagation quantity in each single procedure can be multiplied by 10 times as compared with existing methods and equipment.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a dual-function equipment for natural spawning and hatching of red cypridus chinensis and a method for artificial mass breeding thereof. Background technique [0002] Erythroculter ilishaeformis (Erythroculter ilishaeformis), also known as: Great White Fish, Erythroculter ilshaeformis, Erythroculter ilishaeformis, etc., belongs to Cyprinidae, Cyprinidae, Erythroculter subfamily, and Erythroculter genus in classification . Red bream is a carnivorous and valuable large-scale economic fish. It is large, fast-growing, strong disease resistance, white and tender meat, rich in nutrition and delicious. It is a top-grade fish, similar to shad. Steamed large white fish is a famous Chinese dish, well-known far and wide, and deeply loved by consumers. The artificial breeding of red bream fish fry has reached the market specification in two years, and the market prospect is broad. D...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the artificial large-scale breeding of red bream, there is no large-scale breeding equipment, the spawning rate of broodstock, the fertilization rate and hatching rate of fish eggs are generally low, and the operation of fishing and removing after broodstock spawning causes fish Due to technical problems such as serious egg loss, a dual-function equipment for natural spawning and hatching of the red cymbal and its artificial mass breeding method are proposed, so that the artificial large-scale breeding of the red cymbal has suitable equipment and matching large-scale breeding method, significantly improving the spawning rate, fertilization rate and hatching rate of fish eggs in large-scale breeding of red carp

Images