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Crossbred first filial generation of Qingshuijiang river carp and crossbreeding method

A technology of Qingshuijiang carp and improved seeds, which is applied in fish farming, application, climate change adaptation, etc. It can solve the problems of slow growth of fish species, high probability of inbreeding within species, degradation of production performance and disease resistance and stress resistance, etc. problem, to achieve the effect of increased growth rate, avoiding the decline of production performance and economic performance, and significant heterosis

Inactive Publication Date: 2017-01-04
凯里市福瑞水产养殖场
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the local ethnic minority compatriots in Qiandongnan Prefecture, Guizhou Province all use randomly caught wild carps for breeding, the probability of intraspecific inbreeding is very high, resulting in slow growth of fry and fingerlings produced, low production performance and poor production performance. Degradation of disease resistance and stress resistance, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of Qingshuijiang carp hybrid improved offspring generation and hybrid improvement method, comprising the following steps:

[0020] (1) Breeding broodstock selection: select age at 2 years old, body weight 1.0kg, without injury, disease-free and non-deformed healthy and strong Xingguo red carp male fish is breeding male parent; Select age at 2 years old, body weight 2.0kg, without injury, The healthy and healthy Qingshuijiang carp female without disease and deformity is the female parent;

[0021] (2) Breeding pond preparation: prepare the pond that the bottom of the pond is flat, water supply and drainage is convenient, facing the sun and leeward, put into before breeding broodstock 10 days, mu clear pond with 50kg quicklime dry method, the sun shines for 3 days, then the depth of water injection is at 80cm, Ensure that the dissolved oxygen content in water is above 5mg / L;

[0022] (3) Build fish nests: build fish nests in the breeding pond, and fish nests are m...

Embodiment 2

[0028] A kind of Qingshuijiang carp hybrid improved offspring generation and hybrid improvement method, comprising the following steps:

[0029] (1) Breeding parent fish selection: selection age is 3 years old, body weight 15kg, no injury, no disease and no deformity strong Xingguo red carp male is the breeding male parent; selection age is 3 years old, body weight 2.5kg, no injury, no deformity Healthy and healthy Qingshuijiang carp females with diseases and no deformities are used as reproductive female parents;

[0030] (2) Breeding pond preparation: prepare the pond that the bottom of the pond is smooth, water supply and drainage are convenient, facing the sun and leeward, before breeding broodstock is put into 10 days, mu clears the pond with 75kg quicklime dry method, the sun shines for 2.5 days, then the depth of water injection is at 115cm, Ensure that the dissolved oxygen content in water is above 5mg / L;

[0031] (3) Build fish nests: build fish nests in the breeding...

Embodiment 3

[0037] A kind of Qingshuijiang carp hybrid improved offspring generation and hybrid improvement method, comprising the following steps:

[0038] (1) Breeding broodstock selection: select age at 5 years old, body weight 2.0kg, no injury, no disease and no deformity robust Xingguo red carp male is breeding male; Select age at 5 years old, body weight 3.0kg, no injury, The healthy and healthy Qingshuijiang carp female without disease and deformity is the female parent;

[0039] (2) Breeding pond preparation: prepare the pond that the bottom of the pond is flat, the water supply and drainage are convenient, and the sun is leeward. Putting into the front 10 days before the breeding broodstock, mu cleared the pond with 100kg quicklime dry method, and the sun shone for 2 days, and then the depth of water injection was at 150cm, Ensure that the dissolved oxygen content in water is above 5mg / L;

[0040] (3) Build fish nests: build fish nests in the breeding pond, and fish nests are ma...

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Abstract

The invention discloses a crossbred first filial generation of Qingshuijiang river carp and a crossbreeding method. In the method, males of Xingguo red carp as male parents and females of Qingshuijiang river carp as female parents are subjected to the processes such as parent selecting, breeding pool preparation, fish spawning nest setup, artificial induced spawning and matched breeding to carry out crossbreeding of fry, the crossbred first finial generation obtained by breeding is like the female parents Qingshuijiang river carp in shape, has high growth speed and high disease resistance and stress tolerance and retains the advantage of Qingshuijiang river carp that the flesh is firm and fresh, it is avoided that decrease in productivity and economy of fry and fingerlings due to inbreeding is easily present in the breeding of the parents of Qingshuijiang river carp in the Qingshuijiang river drainage basin having short spatial distance, and high-quality robust local crossbred carp fingerlings are provided for rice fields, ponds and intensive cage farming in the Qingshuijiang river drainage basin in Qiandongnan, Guizhou province.

Description

technical field [0001] The invention relates to the technical field of carp crossbreeding, in particular to a crossbreeding improved offspring generation of Qingshuijiang carp and a crossbreeding improvement method. Background technique [0002] The Xingguo red carp in Xingguo County, Jiangxi Province, the glass red carp in Wan'an County and the purse red carp in Wuyuan County are called "Jiangxi Three Reds". In order to distinguish, the red carp produced in Xingguo County is called "Xingguo Red Carp". Xingguo red carp has the advantages of red color, fast and graceful swimming posture; wide back, thick meat, fresh and tender meat, fast growth, wide appetite and strong disease resistance. It has high ornamental value and economic value. It is a famous geographical indication aquatic product . Xingguo red carp is a hybrid parent widely used in the reproduction of carp and crucian carp. Its hybrid affinity is strong, and most of the hybrid offspring after hybridization show ...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 谌金吾盘祖香胡世然
Owner 凯里市福瑞水产养殖场
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