A method for comprehensive cultivation of eel, shrimp and rice

A technology of paddy field and yellow eel, applied in the field of comprehensive cultivation of eel, shrimp and rice, can solve the problems of low breeding efficiency and not maximizing breeding efficiency, and achieve the effect of improving the cultivation size

Active Publication Date: 2021-12-24
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the output of crayfish with high density is lower and the density is higher, the breeding efficiency is still low
However, the similar prior art eel rice breeding mode left the paddy field breeding ditches before July idle, and the breeding benefits were not maximized.

Method used

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  • A method for comprehensive cultivation of eel, shrimp and rice

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] A kind of comprehensive planting and raising method of eel, shrimp and rice provided by the present embodiment, taking the Jianghan Plain area as an example, carries out according to the following steps:

[0024] 1. Production and installation of eel hatching equipment

[0025] The transformation of eel, shrimp and rice integrated rice fields is the same as that of shrimp and rice co-cultured rice fields. It is carried out in winter, with 4m wide and 1.5m deep breeding ditches excavated, rice fields leveled, and supporting water inlet and drainage facilities constructed. Before the seedlings of crayfish are released at the end of March, each mu (667m 2 ) Paddy fields are thoroughly disinfected by splashing 75-100kg of quicklime to remove wild fish such as eels and loaches stored in the rice fields.

[0026] 2. Crayfish farming

[0027] At the end of March and the beginning of April, when the water temperature reached above 18 degrees, seedlings of crayfish were put in...

Embodiment 2

[0037] A kind of comprehensive planting and raising method of eel, shrimp and rice provided by the present embodiment, taking the Jianghan Plain area as an example, carries out according to the following steps:

[0038] 1. The production and installation of the eel hatching equipment are the same as in Example 1.

[0039] 2. Crayfish farming

[0040] At the end of March and the beginning of April, when the water temperature reached above 18 degrees, the seedlings of crayfish began to be put in, and about 5,000 crayfish seedlings weighing 4g were put in per mu of paddy field. Breeding and management are carried out in accordance with the shrimp-rice co-cultivation regulations. The fishing starts in mid-May, and the big ones are kept small. When the water temperature reaches above 28°C in late June, the crayfish begin to live in caves and make holes, and almost no shrimps get into the shrimp cages. stop fishing.

[0041] 3. Transplanting of rice

[0042] After stopping fishin...

Embodiment 3

[0050] A kind of comprehensive planting and raising method of eel, shrimp and rice provided by the present embodiment, taking the Jianghan Plain area as an example, carries out according to the following steps:

[0051] 1. The production and installation of the eel hatching equipment are the same as in Example 1.

[0052] 2. Crayfish farming

[0053] At the end of March and the beginning of April, when the water temperature reached above 18 degrees, seedlings of crayfish were put in, and about 4,000 seedlings of crayfish weighing 6g were put in per mu of paddy field. Breeding and management are carried out in accordance with the shrimp-rice co-cultivation regulations. The fishing starts in mid-May, and the big ones are kept small. When the water temperature reaches above 28°C in late June, the crayfish begin to live in caves and make holes, and almost no shrimps get into the shrimp cages. stop fishing.

[0054] 3. Transplanting of rice

[0055] After stopping fishing, relea...

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Abstract

The invention provides a method for comprehensive cultivation and breeding of eel, shrimp and rice, including: selection and transformation of rice fields for cultivation; cultivation of crayfish: at the end of March and early April, when the water temperature reaches above 18°C, put the crayfish seedlings , Start fishing in mid-May, catch big and keep small, and stop fishing when the water temperature reaches 28°C or higher in mid-to-late June; release the water to make the water level of the paddy field ditch lower than the paddy field level, and transplant rice seedlings on the paddy field; Cultivation of ricefield eels: set up cages for breeding ricefield eels in the ditches of paddy fields before mid-June, put ricefield eel seedlings on sunny days in early and mid-July for breeding, start to catch ricefield eels in mid-to-late October, and remove the breeding cages; Species density control: In the middle and late October of each year, put the rice field eels into the ditches of the paddy fields, start the crayfish in the shrimp cages in May of the next year, and catch all the rice field eels when the crayfish breeding ends in late June; The invention combines eels, shrimps and rice to grow and raise them, which can be cultivated in rice fields throughout the year.

Description

technical field [0001] The invention relates to the technical field of fishery science application, in particular to a method for comprehensive breeding of eel, shrimp and rice. Background technique [0002] At present, the comprehensive cultivation of shrimp and rice is one of the effective methods to improve the comprehensive benefits of paddy fields, but this model does not give full play to the benefits of paddy fields, and its main shortcomings are: [0003] (1) The suitable growth temperature for crayfish is 18°C ​​to 28°C, and the optimum growth temperature is 23°C to 27°C. If it is higher than 28°C or lower than 18°C, it will live in caves and stop growing. Therefore, the growth time of crayfish in the rice fields of the middle and lower reaches of the Yangtze River in my country's main breeding areas is only from March to June every year. After July, due to the high temperature, crayfish will hibernate, and their breeding time in rice fields is only about 4 months a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/59A01G22/22A01K61/60
CPCA01K61/10A01K61/59A01G22/22A01K61/60Y02A40/81
Inventor 杨代勤苏应兵陈芳袁汉文易提林魏红波
Owner YANGTZE UNIVERSITY
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