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Breeding method of procambarus clarkii suitable for paddy field aquaculture

A technology of Procambarus clarkii and paddy fields, which is applied in fish farming, climate change adaptation, application, etc. It can solve the problems of low survival rate of seedlings, inability of farmers to accurately grasp the density of crayfish in aquaculture water, and self-mutilation, so as to improve survival rate and unit yield, improve disease prevention and resistance, and improve growth performance

Active Publication Date: 2020-01-17
CHENGDU ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this farming method, usually after the one-time release of shrimp seedlings in spring or one-time release of parent shrimp in autumn, the shrimps are cultured through self-propagation and self-cultivation. In this way, farmers cannot accurately grasp the density of crayfish in the cultured water body. At the same time, rice fields The commercial shrimp and shrimp seedlings are mixed, the specifications are very different, the mutual self-mutilation is serious, the survival rate of the seedlings is low, and the large ones are caught over the years, and the germplasm degrades quickly. Difference

Method used

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  • Breeding method of procambarus clarkii suitable for paddy field aquaculture
  • Breeding method of procambarus clarkii suitable for paddy field aquaculture

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Embodiment 1

[0031] The present embodiment provides a method for raising Procambarus clarkii seedlings suitable for paddy field culture, comprising the following steps:

[0032] S1. Hatching seedlings: Breed the female shrimp with eggs in the hatching tank, maintain the water temperature in the hatching tank at 18°C, and feed the compound feed with a protein content of more than 35%. In the compound feed fed in this embodiment, every kilogram of compound feed Including 148g corn meal, 309g meat meal, 74g duckweed meal, 222g soybean meal meal and 247g fish meal, the feeding amount was 6% of the body weight of the female shrimp until the seedlings left the mother body.

[0033] S2. Seedling cultivation: move the seedlings that left the mother body in step S1 to the seedling pond, maintain the water temperature in the seedling pond at 22°C, the dissolved oxygen in the water is 5mg / L, and the pH value is maintained at 8.2, and feed the young shrimp feed. This implementation In the juvenile shr...

Embodiment 2

[0037] S1. Hatching seedlings: Breed the female shrimp with eggs in the hatching tank, maintain the water temperature in the hatching tank at 25°C, and feed the compound feed with a protein content of more than 35%. In the compound feed fed in this embodiment, every kilogram of compound feed Including 154g corn meal, 289g meat meal, 93g duckweed meal, 227g soybean meal meal and 237g fish meal, the feeding amount was 8% of the body weight of the female shrimp until the seedlings left the mother body.

[0038] S2. Seedling cultivation: move the seedlings that left the mother body in step S1 to the seedling pond, maintain the water temperature in the seedling pond at 30°C, the dissolved oxygen in the water is 6mg / L, and the pH value is maintained at 6.8, and feed the young shrimp feed. This implementation In the juvenile shrimp feed for example, per kilogram of juvenile shrimp feed includes 214g soybean powder, 320g snail meat slurry, 320g mussel meat slurry, 133g kelp powder and ...

Embodiment 3

[0042] S1. Hatching seedlings: Breed the female shrimp with eggs in the hatching tank, maintain the water temperature in the hatching tank at 21°C, and feed compound feed with a protein content of more than 35%. In the compound feed fed in this embodiment, the compound feed per kilogram Including 150g corn meal, 300g meat meal, 85g duckweed meal, 225g soybean meal meal and 240g fish meal, the feeding amount is 7% of the body weight of the female shrimp until the seedlings leave the mother body.

[0043] S2. Seedling cultivation: move the seedlings that left the mother body in step S1 to the seedling pool, maintain the water temperature in the seedling pool at 28°C, the dissolved oxygen in the water is 5 mg / L, and the pH value is kept at 7.5, and feed young shrimp feed. This implementation In the juvenile shrimp feed for example, each kilogram of juvenile shrimp feed includes 200g soybean powder, 340g snail meat slurry, 340g mussel meat slurry, 110g kelp powder and 10g chitosan,...

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Abstract

The invention belongs to the technical field of procambarus clarkii aquaculture and discloses a breeding method of procambarus clarkii suitable for paddy field aquaculture. The method includes: S1, hatching; S2, culturing; S3, breeding; S4, releasing. By individual culture of berried female procambarus clarkii and young procambarus clarkii leaving maternal bodies and breeding of young maternal body with mobility, the procambarus clarkii in different sizes can be separated to obtain high-quality young procambarus clarkii, and the procambarus clarkii in different sizes can be released into different paddy fields conveniently, so that the survival rate of the young procambarus clarkii in the paddy fields is increased, self-harm injuries and death of the young procambarus clarkii in differentsizes can be reduced, and the specific yield of procambarus clarkii can be improved.

Description

technical field [0001] The invention relates to a method for raising Procambarus clarkii seedlings suitable for paddy field cultivation, and belongs to the technical field of Procambarus clarkii cultivation. Background technique [0002] Procambarus clarkii (Procambarus clarkii) belongs to Crustacea, Decapod order, Crayfish family, Procambarus genus, also known as crayfish, red crayfish, is a freshwater economic shrimp, inhabits streams and swamps, temporary habitats include Ditches and ponds, often mixed with vegetation or woody debris that break and weaken banks, live primarily in shallow, weed-rich wetlands, lakes, and river ditches. Procambarus clarkii has the characteristics of fast growth, miscellaneous food habits, strong adaptability, low oxygen resistance, less disease, easy breeding and transportation, etc., and is rich in nutrition, tender and delicious, and is widely welcomed by people. It has become an important food in our country. economically farmed species....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 李良玉唐洪张小丽黄小丽陈德芳袁晓梅王恒程东进郭云建李世春王定国苏中海仇美红廖敏吴谦吴艳蓉
Owner CHENGDU ACAD OF AGRI & FORESTRY SCI
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