A kind of hybrid breeding method of hybrid carp and Pengze crucian carp

Abstract

The invention provides a hybrid carp and pengze crucian carp hybrid breeding method and belongs to the technical field of freshwater fish hybrid breeding. The hybrid carp and pengze crucian carp hybrid breeding method aims at solving the problem that no proper hybrid method exists in the prior art to prevent carp diseases in the northern area. The method includes the steps that a first filial generation is obtained by regarding a German mirror carp as a female parent and a jian carp as a male parent for hybridization, an irregular male carp with the high growth speed and a few large body surface scales serves as a male parent, a batch of plump female pengze crucian carps with more than 31 lateral line scales and high growth speed are optimized out through two-generation breeding to serve as a female parent, parent mature promotion and artificial propagation are carried out on the basis of optimizing and directive breeding of hybrid parents, hybrid carps coincident with the pengze crucian carp female parent in appearance can be obtained after distant hybridization is carried out, hybrid generation has no carp characters, and the hybrid carp and pengze crucian carp hybrid breeding method has the advantages of being high in growth speed and disease resistance, and is of great significance in improving unit yield, increasing breeding benefits, breeding new species and achieving large-scale fry rearing.

Description

technical field [0001] The invention belongs to the technical field of freshwater fish hybrid breeding, in particular to an artificial hybrid breeding method of hybrid carp and Pengze crucian carp. Background technique [0002] Crossbreeding is a commonly used freshwater fish breeding method. Hybridization with parents of different species, different genera or even more distant kinship can combine the characteristics and characteristics of different species and genera, break through the boundaries of species, expand genetic variation, and create new types of variation or new species. In aquatic products, breeding hybrid species is one of the important ways to improve the yield and quality of aquatic products. [0003] Pengze crucian carp has tender meat, delicious taste, fast growth, and is easy to domesticate and breed. It is popular among consumers and has been bred in large quantities in the north. Rapid infection, sudden onset, and high mortality have caused heavy loss...

AI Technical Summary

Problems solved by technology

[0003] Pengze crucian carp has tender meat, delicious taste, fast growth, and is easy to domesticate and breed. It is popular among consumers and has been bred in large quantities in the north. Rapid infection, sudden onset, and high mortality have caused heavy losses to Pengze crucian carp farmers. Exogenous diseases have become the main limiting factors for Pengze crucian carp breeding. Therefore, it is necessary to develop Pengze crucian carp with strong disease resistance and fast growth. Substitute species, in order to solve the problem of Pengze crucian carp breeding disease, is of great significance to optimize the structure of freshwater fish culture species, and promote farmers to increase production and income

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