Method for breeding river crabs and crayfishes in same pond

A technology for river crabs and lobsters, which is applied in botany equipment and methods, fish farming, climate change adaptation, etc., can solve the problems of difficulty in increasing the unit yield of river crabs and crayfish, and achieve easy implementation, strong reference and reference value, and promote The effect of increasing production and income

Pending Publication Date: 2021-10-01
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE +2
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Problems solved by technology

[0006] In order to overcome the defect that it is difficult to increase the unit yield of river crabs an

Method used

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  • Method for breeding river crabs and crayfishes in same pond

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Example Embodiment

[0018] Example 1

[0019] 1. Pond conditions: The area of ​​the river crab breeding pond is 20 acres, such as figure 1 As shown, the farming pond is surrounded by 1.5m, the bottom of the peripheral groove is 1.5m, and the top of the pond is 2.0m, and the slope of Tang is 1: 2.5. The pond is excavated from 8 to 10m, and the central fields of the pond form a water plantation area, the height of the floral height of the water and grass is 50 ~ 60cm high than the ditch of the perimeter.

[0020] 2, preparation before breeding: Winter, drain the pond water, advance to Qingtang, disinfect and sun into the tang, then perform fertilization, central field spinning, anti-escape wall settings and Ira algae planting.

[0021] The specific operation is: After the Qingtang, according to the 75kg / mu of dosage to the pond, add the right amount of water, so that the flow of flowers will have a dramatic chemical effect after the water; the pond is exposed to the day to dry the turtle, and the sta...

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Abstract

The invention provides a method for breeding river crabs and crayfishes in the same pond. The method comprises the breeding processes of pond preparation, larval crab stocking, crayfish with egg stocking, margarya melanoide transferring, first-time fishing and second-time fishing. According to the method, crayfish breeding is introduced into a river crab breeding pond firstly, the problems of time difference and spatial distribution between the river crabs and the crayfishes are successfully solved, the yield of the river crabs and the yield of the crayfishes are not reduced, the economic benefit is high, and the reference value is high. According to the method, engineering transformation does not need to be carried out on an existing river crab breeding pond, the breeding and fishing technology of the crayfishes with the eggs is introduced in good time, and yield-increasing breeding of the crayfishes in one season is successfully achieved within the time period from April to August.

Description

technical field [0001] The invention relates to a compound culture of river crab and crayfish, in particular to a method for cultivating river crab and crayfish in the same pond. Background technique [0002] River crab, scientific name Chinese mitten crab, commonly known as crab, is one of the traditional famous aquatic products in my country. It is famous at home and abroad for its rich nutrition and unique flavor. River crab is an important fish farming object in my country. [0003] Crayfish (Procambarus clarkii), belonging to the crayfish family and the genus Procambarus, is native to northern Mexico and the southern United States. Introduced to my country by Japan in 1929, it has become an important resource of freshwater shrimp in my country, and is widely distributed in the middle and lower reaches of the Yangtze River and the Huaihe River Basin. In 2014, the national crayfish aquaculture area exceeded 8 million mu, the aquaculture output was about 660,000 tons, an...

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Application Information

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IPC IPC(8): A01K61/59A01K61/51A01G33/00
CPCA01K61/59A01G33/00A01K61/51Y02A40/81
Inventor 孙梦玲张凤翔尹思慧黄鸿兵陈友明李佳佳许志强刘远柱唐建清
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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