Ecological polyculture method of river cabs, freshwater shrimps and rhodeus sinensis

A kind of technology of Chinese and scorpion, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as affecting the growth of river crabs, ineffectiveness, deterioration of water quality, etc., to maintain a virtuous circle, promote growth, increase The effect of ecological structure

Inactive Publication Date: 2014-09-24
JIANGSU NOAHS ARK AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In traditional river crab farming, especially in summer, due to the high water temperature, if the remaining feed is not removed in time, the water quality will soon deteriorate and affect the growth of river crabs. Farmers are tired of coping with this, which costs money and has no effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of ecological polyculture method of river crab, freshwater shrimp and Chinese squid, comprising the following steps:

[0038] 1. Pond Preparation

[0039] Choose a soil pond with an area of ​​2 mu and a water depth of 2.0 meters. The pond has sufficient water source, wide water depth, convenient irrigation and drainage, less sludge, fresh and pollution-free water, and the soil is clay.

[0040] The water inlet and outlet of the pond are arranged diagonally, and the location of the outlet is lower than the water inlet and is arranged at the bottom of the pond mouth. The construction of the beach accounts for a quarter of the pond area, with a depth of 1m and a slope ratio of 1:2.5. The remaining three sides are built with deep ditches of 1.8m.

[0041] The seedlings were sterilized with 200kg of quicklime one month before stocking. After the whole pond was sterilized in the clear pond, it was exposed to the sun until the bottom of the pond cracked. Apply enough ...

Embodiment 2

[0070] A kind of ecological polyculture method of river crab, freshwater shrimp and Chinese squid, which is basically the same as embodiment 1, except that the area of ​​the cultured pond is 3.0 mu, the water depth is 1.6-1.8 meters, and the seedlings are sterilized with 200kg quicklime one month before stocking , Apply enough base fertilizer before the pond mouth enters the water, and apply 200kg of fermented organic fertilizer. In late March, the size of stocking crabs is about 50 / catties, complete with appendages, and healthy. The stocking density is 600 per mu; 350 fish per mu, with a male to female ratio of 1:1.1, and 250 Anodontia dorsalis for breeding; the second batch of shrimp seedlings will be stocked from the end of June after the freshwater prawns are caught and put on the market, with a size of 0.8- 1.0 cm / tail, 60,000 tails per mu; water quality control, bait feeding, disease control, daily management and harvest time are basically the same as in Example 1, and the...

Embodiment 3

[0075] A method for ecological polyculture of river crabs, freshwater shrimps, and Chinese squids, which is basically the same as in Example 1, except that young crabs with a size of about 40 / jin, complete appendages, and strong physique are stocked in late March. 800 shrimps are stocked per mu; in February, the stocking size of shrimp species is 2.0cm / tail, and the stocking density is 25 kg / mu; 350 fish per mu are stocked, and the male and female are paired according to 1:1.2, and 300 Anodon clams are stocked. It is used for the breeding of Chinese squid; after the freshwater shrimps are caught at the end of June, the second batch of shrimp seedlings will be stocked in early July. The size is 1cm / tail, and the stocking amount per mu is 50,000; And harvesting time are all substantially the same as embodiment 1, have obtained the economic benefit as table 3.

[0076] Table 3 Harvesting situation of river crab, freshwater shrimp and Chinese squid in polyculture mode

[0077] ...

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PUM

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Abstract

The invention discloses an ecological polyculture method of river cabs, freshwater shrimps and rhodeus sinensis, wherein the river cabs, the freshwater shrimps and the rhodeus sinensis are cultured in a mixed mode. The method includes the steps that stocking of crab species is conducted in the middle of March, the specification of young crabs ranges from 40 per jin to 50 per jin, and the stocking density ranges from 600 per mu to 800 per mu; the freshwater shrimps serve as shrimp species, a mode of mixed breeding for two times in one year is adopted, the first breeding is conducted in the middle of February, the stocking specification is that the size of the fresh shrimps ranges from 2 cm to 3 cm, the stocking density ranges from 15 kg / mu to 25 kg / mu, the second breeding is conducted in the end of June, the stocking specification is that the size of the fresh shrimps ranges from 0.7 cm to 1 cm, and the stocking density ranges from 50,000 per mu to 60,000 per mu; stocking of the rhodeus sinensis is conducted in February, the stocking density ranges from 350 per mu to 450 per mu, the male-female ratio ranges from 1:1.1 to 1:1.2, and meanwhile matched stocking of 200-300 anodonta woodianas is conducted. According to the method, the ecological complementarity of the river cabs, the freshwater shrimps and the rhodeus sinensis is adopted to conduct polyculture, the river cabs are mainly bred, the rhodeus sinensis is mainly used for removing residual feeds, the baits are fully utilized, the algae are the objects devoured by the river cabs and the freshwater shrimps, and the rhodeus sinensis is bred in a mixed mode to control the blue-green algae outbreak in the river cab pool.

Description

technical field [0001] The invention relates to a polyculture method for aquaculture species, in particular to an ecological polyculture method for river crabs, freshwater shrimps and Chinese squids. Background technique [0002] In traditional river crab farming, especially in summer, due to the high water temperature, if the remaining feed is not removed in time, the water quality will soon deteriorate and affect the growth of river crabs. Farmers are tired of coping with this, which costs money and has no effect. Contents of the invention [0003] The object of the present invention is to provide an ecological breeding method for mixed culture of river crabs, freshwater shrimps and Chinese scallops, which can naturally obtain the best breeding environment and ecological benefits, reduce the diseases of cultured species, and have high yield per unit area. [0004] In order to achieve the above object, the ecological polyculture method of river crab, freshwater shrimp an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 贺艳辉袁永明王红卫张红燕
Owner JIANGSU NOAHS ARK AGRI TECH
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