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Two-stage efficient rearing method for freshwater shrimp fry

A two-stage, green shrimp technology, applied in the field of green shrimp seedlings, can solve the problems of affecting the output of shrimp seedlings, poor water quality and environment in ponds, and aggravated decline in the survival rate of shrimp seedlings.

Inactive Publication Date: 2015-03-18
江苏省水产技术推广站
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Problems solved by technology

[0002] In the prior art, the survival rate of shrimp seedlings in the process of raising freshwater shrimp seedlings is unstable, and there are various factors affecting the survival rate of shrimp seedlings, and the superposition of some unfavorable factors also causes the degree of decline in the survival rate of shrimp seedlings to intensify
The common method of breeding male and female broodstock in the same pond is actually "one pond for dual purposes" in the parental breeding pond and the nursery pond. Due to the long-term use of the pond, the water quality of the pond is poor, which affects the yield of shrimp fry, and the specifications of shrimp fry are not uniform.
At present, there is no research on the comprehensive and effective method to improve the survival rate of shrimp seedlings

Method used

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  • Two-stage efficient rearing method for freshwater shrimp fry

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Embodiment Construction

[0044] Below in conjunction with specific embodiment the technical scheme is further described as follows:

[0045] 1. Breeding conditions

[0046] The site is at Li Jianguo Tangkou, Guli Town, Changshu City, with an area of ​​4 mu. The ponds are rectangular, east-west, about 1.5m deep, flat bottom, loamy soil, bottom silt less than 10cm, sufficient water source, good water quality, no pollution, convenient irrigation and drainage. One 2.2 kilowatt inflatable oxygen pump is installed.

[0047] 2. Preparation before stocking

[0048] Clean up the pond and remove excess silt from the bottom of the pond. One week before stocking, use 150kg of quickliming water per mu and sprinkle the whole pond to kill various pathogens and harmful organisms in the pond and improve the bottom quality of the pond. Exposure to the bottom of the pond until dry.

[0049] Two days before the parents are stocked, add new water to 0.8 meters, and filter the outer end of the water inlet with a 60-me...

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Abstract

A two-stage efficient rearing method for freshwater shrimp fry includes the steps of 1, rearing parents, selecting young shrimps basically uniform in specification, and rearing the young shrimps in a special parent pond in early March; 2, breeding shrimp fry. Technical schemes are made for breeding pond conditions, parent shrimp stocking, fry rearing and the like; accordingly, the large-scale synchronous breeding is achieved, and unit rearing yield and fry quality can be increased greatly.

Description

technical field [0001] The technical proposal belongs to the technical field of aquaculture, and specifically relates to a method for raising freshwater shrimp seedlings. Background technique [0002] In the prior art, the survival rate of shrimp seedlings in the process of raising freshwater shrimp seedlings is unstable, and there are various factors affecting the survival rate of shrimp seedlings, and the superposition of some unfavorable factors also causes the degree of decline in the survival rate of shrimp seedlings to increase. The common method of raising seedlings of male and female broodstock in the same pond is actually "one pond for dual purposes" in the parental breeding pond and the nursery pond. Due to the long-term use of the pond, the water quality of the pond is poor, which affects the yield of shrimp fry, and the specifications of shrimp fry are not uniform. At present, there is no research on a comprehensive and effective method to improve the survival ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 龚培培陈焕根邹宏海王苗苗陈光芸王明宝冯冰冰
Owner 江苏省水产技术推广站
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