Net cage used for breeding and catching fishes and shrimps

Abstract

The invention relates to a net screen used for breeding and catching fishes and shrimps. The net cage includes a cylindrical steel framework which is surrounded by a polyethylene net, the polyethylene net on the lateral side of the steel framework is provided with an inlet connected to a conical passage; erythroculter ilishaeformis is bred in the net cage, and meanwhile, some trash fishes and shrimps can be caught for supplying natural baits to erythroculter ilishaeformis.

Description

technical field [0001] The invention relates to a net cage for cultivating aquatic animals, in particular to a net cage for both breeding and catching fish and shrimp. Background technique [0002] The scientific name of the cocked mouth fish is crocodile chinensis, which is larger in size, slender, flat on the side, and in the shape of willow leaves. The back of the head is straight and the back of the head is raised. The mouth is superior, and the mandible is thick and sharply upturned, vertical in front of the mouth, so that the cleft of the mouth is vertical. The eyes are large and round. The scales are small. The cocked-billed red bream is a large-scale freshwater economic fish in the middle and upper layers. It moves swiftly, is good at jumping, has a violent temper, and is easily frightened. It grows rapidly and is a ferocious carnivorous fish that feeds mainly on live fish. It mainly feeds on plankton and aquatic insects in the seedling stage. It mainly eats smal...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, artificial feed is generally used for the whole process of cultivating crocodile fish, and the fresh and live small miscellaneous fish and shrimps that crocodile carp like to eat are generally not supplemented.

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