Method for increasing survival rate of procypris merus cultured in rice field

Abstract

The invention discloses a method for increasing the survival rate of procypris merus cultured in a rice field. The method comprises the following steps: selecting the rice field with sufficient water source, fresh water quality, convenient irrigation and drainage and good water retention; one corner of the rice field is selected, a water pit used for cultivating procypris merus is dug, and the water pit is communicated with a ditch in the rice field; erecting a bracket above the water pit, and covering a fishing net on the surface of the bracket; the water pit and the ditch in the rice field are separated by a fish blocking net; irrigating the rice field; after the rice seedlings are transplanted, stocking procypris merus fries in the water pits; after stocking for 5-7 days, starting to feed rice bran and / or peanut bran; after feeding is started for one week, artificial compound feed is fed; a fishing net covers the water pit; after tillering and row closing of the rice are completed, the support and the fishing net are removed, and the procypris merus freely enters the rice field; during drainage and field drying, the procypris merus enters the ditches along with water flow and finally converges into the water pits; the rice field begins to drain water, the procypris merus enters the ditches along with water flow and finally converges into the water pit to be harvested; and harvesting the rice after the soil in the rice field is hardened.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for improving the survival rate of rice-field cultured crocodile carp. Background technique [0002] Paddy-field farming of croakers is an ecological three-dimensional breeding model that makes full use of the symbiotic and mutually beneficial relationship between rice and fish, and organically combines rice planting and fish farming. and weeds, reduce the use of pesticides and fertilizers, and the excreted manure can be used as fertilizer for rice, turning the soil to promote fertilizer decomposition, creating good conditions for rice growth, improving the quality of rice in rice fields, and at the same time plankton, weeds, and insects in rice fields etc. can be used as high-quality food for fishes, and can provide a comfortable environment for the growth of the flower fish, and the quality of the flower fish produced is higher, thereby improving the comprehensive ...

AI Technical Summary

Problems solved by technology

[0004] However, in order to adapt to the green and high-quality development, there are still some industrial problems that need to be solved in rice field fish farming. One of the problems is the low survival rate of cultured grass carp. The main reason is that in order to reduce costs, most farmers put fish The species is small in size, poor in stress resistance, and easily eaten by predators such as birds, snakes, frogs, etc., resulting in low production of fish in rice fields

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