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Safe overwintering method for macrobrachium nipponense parents

A green shrimp, safe technology, applied in the direction of fish farming, application, climate change adaptation, etc., can solve the problems that restrict the development of fresh shrimp farming, and achieve the goal of promoting healthy and sustainable development, improving economic benefits, and increasing economic benefits Effect

Inactive Publication Date: 2010-06-09
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Variety degradation has become the bottleneck of the freshwater shrimp farming industry, seriously restricting the development of freshwater shrimp farming industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A farmer chooses a freshwater shrimp pond with an area of ​​2.5 mu to survive the winter. Thoroughly clear the pond before stocking overwintering fresh shrimps, and strictly filter the incoming water. On November 16, use 10 catties per mu (1.5 catties of quicklime for every 100 catties of tea dregs and soak for 3 days). The tea dregs can also kill wild fish and snails in the pond while fertilizing the water. During the wintering period, the water depth is controlled at about 1.2 meters, and the transparency is controlled at 25 to 35 centimeters. 18 shrimp nests with a diameter of 1.5 meters made of tea trees or other multi-forked branches are placed evenly per mu. The stocking density is 90 catties / mu, and the ratio of male and female shrimp can be 2:1. Persist in regularly patrolling ponds by the requirements of the present invention during the wintering period, and pay attention to keeping the depth, fertility and dissolved oxygen of water sufficient. And do a good...

Embodiment 2

[0023] A certain farm selects a freshwater shrimp pond with an area of ​​3.5 mu of shrimps for parents to survive the winter. Thoroughly clear the pond before stocking overwintering fresh shrimps, and strictly filter the incoming water. On November 13, use 10 catties per mu (put 2.0 catties of quicklime for every 100 catties of tea leaves and soak for 3 days). Tea leaves can kill wild fish and snails in the pond while fertilizing water. During the wintering period, the water depth is controlled at 1.1-1.4 meters, and the transparency is controlled at 25-40 cm. Evenly place 20 shrimp nests with a diameter of 1.5 meters made of tea trees or other multi-forked branches per mu. The stocking density is 85 catties / mu, and the ratio of male and female shrimp can be 2.5:1. Persist in regularly patrolling ponds by the requirements of the present invention during the wintering period, and pay attention to keeping the depth, fertility and dissolved oxygen of water sufficient. And do a...

Embodiment 3

[0025] A breeding company chooses a freshwater shrimp pond with an area of ​​4.5 mu of shrimp with better conditions for parental overwintering. Thoroughly clear the pond before stocking the overwintering parental shrimps, and filter the incoming water strictly. On November 13, use 10 jin per mu (1.5 jin of quicklime for every 100 jin of tea dregs and soak for 4 days). Tea dregs can also kill wild fish and snails in the pond while fertilizing water. During the wintering period, the water depth is controlled at 1.2-1.3 meters, and the transparency is controlled at 25-35 cm. Evenly place 20 shrimp nests with a diameter of 1.5 meters made of tea trees or other multi-forked branches per mu. The stocking density is 80 catties / mu, and the ratio of male and female shrimp can be 3:1. Persist in regularly patrolling ponds by the requirements of the present invention during the wintering period, and pay attention to keeping the depth, fertility and dissolved oxygen of water sufficient...

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Abstract

The invention discloses a safe overwintering method for macrobrachium nipponense parents, which mainly comprises selection of a parent overwintering temporary culture pond, overwintering pretreatment, construction of overwintering conditions, parents matching and density and overwintering feeding management technology and the like. The method is an overwintering method suitable for macrobrachium nipponense biology, ethology and ecology, the method can furthest improve the overwintering survival rate of the macrobrachium nipponense, and the overwintering survival rate can reach over 85 percent. The method reduces the overwintering loss of the macrobrachium nipponense, directly increases the economic benefit, provides reliable assurance for conservation and overwintering of good strains of the macrobrachium nipponense, and is helpful for improving the economic benefit of macrobrachium nipponense culture and promoting healthy and sustainable development of the macrobrachium nipponense breeding industry in China.

Description

technical field [0001] The invention relates to culture biology, behavior and ecology of macrobrachium, in particular to water environment control and management technology for green shrimps to survive winter safely. Background technique [0002] Freshwater shrimp (Macrobrachium nipponense), scientific name Japanese river prawn, commonly known as river shrimp, lake shrimp. It belongs to the phylum Arthropoda, Crustacea, Decapod, Longarm Shrimpidae, Macrobrachium genus. It is a kind of shrimp with larger individual in freshwater shrimp. Because of its tender meat, delicious taste and rich nutrition. It is also an important freshwater cultured shrimp in my country. At present, the annual output of freshwater shrimp farming in my country is more than 200,000 tons, and it is still increasing year by year. However, with the continuous expansion of the breeding scale and the continuous improvement of the degree of intensification, the freshwater shrimp has serious species dege...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 龚永生傅洪拓吴滟熊贻伟蒋速飞
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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