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Cultivation method of three-way-cross shrimp seeds

A cultivation method, three-way hybridization technology, which is applied in the cultivation of shrimp seedlings and three-way hybridization shrimp seedlings, can solve the problems of weak disease resistance, high temperature resistance and low temperature resistance, inability to improve breeding efficiency, and single species. Achieve the effects of low feed coefficient, improved disease resistance, and long physique

Active Publication Date: 2014-04-23
浙江吴越农业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But no matter what kind of freshwater shrimp culture technology is adopted, the finished shrimp after the final culture is still a kind of pure freshwater shrimp. improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, the cultivation method of three-way hybrid shrimp fry of the present invention, this cultivation method comprises:

[0026] A, select pond construction shrimp seedling to cultivate pond, the area of ​​pond is 3 mus, excavate a wide 1 meter at the bottom of the pond centrally, the deep 0.2 meter gathers the shrimp ditch;

[0027] b. Disinfect the pond. Before stocking shrimp species and shrimp seedlings, dry the pond and expose it to the sun to remove excess silt. Use 70 kg of quicklime per mu to make slurry and then sprinkle the whole pond. After ten days, the quicklime component disappears and then stock the shrimp species;

[0028] c. Stocking, first carry out binary cultivation, introduce Taihu Lake and Hongze Lake parental shrimp with a male-to-female ratio of 5:1, and mix and stock 15 kg per mu; ternary cultivation, hybridize Taihu Lake and Hongze Lake parental shrimp in early April Shrimp and local group shrimp are mixed according to 1:1 male to fema...

Embodiment 2

[0035] Embodiment 2, the cultivation method of three-way hybrid shrimp seedling of the present invention, this cultivation method comprises:

[0036] A, select pond construction shrimp seedling to cultivate pond, the area of ​​pond is 10 mus, excavate a wide 1 meter at the bottom of the pond centrally, the deep 0.3 meter gathers the shrimp ditch;

[0037] b. Disinfect the pond. Before stocking shrimp species and shrimp seedlings, dry the pond and expose it to the sun to remove excess silt. Use 80 kg of quicklime per mu to make slurry and then sprinkle the whole pond. After ten days, the quicklime component disappears and then stock the shrimp species;

[0038] c. Stocking, first carry out binary cultivation, introduce Taihu Lake and Hongze Lake parental shrimp with a male-to-female ratio of 5:1, and mix and stock 15 kg per mu; ternary cultivation, hybridize Taihu Lake and Hongze Lake parental shrimp in early April Shrimp and local group shrimp are mixed according to 1:1 male t...

Embodiment 3

[0045] Embodiment 3, the cultivation method of three-way hybrid shrimp fry of the present invention, this cultivation method comprises:

[0046] A, select pond construction shrimp seedling to cultivate pond, the area of ​​pond is 6 mus, excavate a wide 1 meter at the bottom of the pond centrally, the deep 0.25 meter collecting shrimp ditch;

[0047] b. Disinfect the pond. Before stocking shrimp species and shrimp seedlings, dry the pond and expose it to the sun to remove excessive silt. Use 75 kg of quicklime per mu to make slurry and then sprinkle the whole pond. After ten days, the quicklime component disappears and then stock the shrimp species;

[0048] c. Stocking, first carry out binary cultivation, introduce Taihu Lake and Hongze Lake parental shrimp with a male-to-female ratio of 5:1, and mix and stock 15 kg per mu; ternary cultivation, hybridize Taihu Lake and Hongze Lake parental shrimp in early April Shrimp and local group shrimp are mixed according to 1:1 male to f...

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Abstract

Disclosed is a cultivation method of three-way-cross shrimp seeds. The cultivation method includes the steps that firstly, a pond 3 mu-10 mu in area is selected for building a shrimp seed cultivation pond, and a shrimp ditch 1 m in width and 0.2 m to 0.3 m in depth is dug in the center of the bottom of the pond; secondly, the pond is sterilized and is subjected to dry-pond exposure before the shrimp seeds are bred, excessive silt is cleared away, every 70 kg-80 kg quicklime is subjected to slurry forming and is poured into one mu of the pond, the quicklime components vanish ten days later, and then the shrimp seeds are put to be bred; thirdly, breeding is carried out in the form that two-way cultivation is carried out firstly, Tai Lake and Hongze Lake parent shrimps are introduced according to the female-male ratio of 5:1 and are mixed and bred 15 kg per mu, and then three-way cultivation is carried out in the form that group shrimps obtained after cross-cultivating of the Tai Lake and Hongze Lake parent shrimps and local group shrimps are mixed and bred 10 kg per mu according to the female-male ratio of 1:1 during the first ten-day period of the April; fourthly, baits are fed at least one time every day in the young freshwater shrimp cultivation process; fifthly, the shrimp seeds are fished out of the pond, wherein shrimp seeds with the body lengths ranging from 0.8 cm to 1.2 cm can be fished out of the pond after 20 days to 30 days of cultivation or can be cultivated as shrimp species.

Description

technical field [0001] The invention relates to a method for cultivating shrimp seedlings, in particular to a method for cultivating three-way hybrid shrimp seedlings, and belongs to the technical field of artificial cultivation of shrimp seedlings. Background technique [0002] Freshwater shrimp is also known as river shrimp. The cultivation technology of freshwater shrimp belongs to relatively mature artificial breeding technology, especially the pond cultivation of freshwater shrimp is the most; the cultivation technology of freshwater shrimp not only refers to pure freshwater shrimp cultivation, but also includes mixed with other species. For example, one or more kinds of polyculture with other fish species or soft-shelled turtle species; however, the techniques of pure culture or polyculture are different due to the different breeding habits of different species, so farmers adopt specific breeding methods to improve breeding efficiency There are also differences. But n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 归毛头
Owner 浙江吴越农业股份有限公司
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