Co-cultivation method for river crabs and monopterus albus in same pond

Abstract

The invention relates to a co-cultivation method for river crabs and monopterus albus in a same pond. The method comprises the following steps: (1) a net cage is arranged at the upper part of a waterbody located in the middle of the pond, the monopterus albus is cultivated in the net cage, and the area of the net cage is 36m<2> / mu; the river crabs are cultivated at the lower part of the pond water body; and water plants are not planted in the region where the net cage is arranged; (2) the net cage specification is that the length is 3m, the width is 2m and the height is (0.8-1.0)m, the upperend of the net cage is higher by 40cm than the water surface, and the lower end of the net cage is lower by 40-60cm than the water surface; (3) 2kg of young monopterus albus is thrown per square meterof the net cage, and the mass of each young monopterus albus is 30g; and 1750 river crabs are thrown per mu, and the mass of each river crab is 7g; (4) the monopterus albus is fed with monopterus albus expanded pellet feed with a protein content of 40%, the river crabs are fed with river crab expanded pellet feed with a protein content of 30%, and the daily feeding rate of each feed is 3-5% of the corresponding body weight; and (5) povidone iodine and quick lime are alternately sprinkled monthly to improve water quality during the breeding period. The method provided by the invention fully exploits the production potentiality of the pond water body, and effectively improves the economic benefits of the pond water body.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for collaborative breeding of river crabs and rice field eels in the same pond. Background technique [0002] Rice field eels and river crabs are the main objects of farming in our country, and the market is in short supply. However, in ponds where river crabs are raised, only a small amount of fish such as silver carp and bighead carp are stocked in the water body. In ponds where rice field eels are raised in cages, the water outside the cages is often only stocked with some fish such as silver carp and bighead carp. These two pond culture methods all do not make full use of the space and time of the pond water body, and do not fully tap the comprehensive production potential of the pond water body. Therefore, the comprehensive economic benefits of the pond water body are not well brought into play. Contents of the invention [0003] The invention ai...

AI Technical Summary

Problems solved by technology

Both of these two pond culture methods have not fully utilized the space and time of the pond water body, and have not fully tapped the comprehensive production potential of the pond water body. Therefore, the comprehensive economic benefits of the pond water body have not been fully utilized.

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