Method for breeding new varieties of black pigs in Southern Henan Province

Abstract

The invention discloses a method for breeding new varieties of black pigs in Southern Henan Province comprising following steps: Duroc pigs are hybridized with Huainan pigs to breed a F1 generation Du-Huai hybrid pig herd; Duroc pigs are hybridized with the F1 generation Du-Huai hybrid pig herd to obtain a F2 generation Du-Du-Huai hybrid pig herd; reciprocal cross is performed between the F1 generation Du-Huai hybrid pig herd and the F2 generation Du-Du-Huai hybrid pig herd to breed a base pig herd; ideal boar and sow individuals are selected from the base pig herd for cross hybridizing fixing to breed zero generation breeding core herds; herd continuous progeny selection is performed on zero generation breeding core herds and new varieties are obtained by expanded breeding. The method for breeding a new variety of high quality pigs which are improved Huainan pigs with 62.5% foreign blood is first brought forward; the high quality new variety pigs which keep good characteristics of local Huainan pigs and absorb production performance of foreign Duroc pigs are bred.

Description

technical field [0001] The invention relates to the technical field of breeding methods for new varieties of livestock, in particular to a method for breeding new varieties of Henan black pigs. Background technique [0002] Since the 1980s, my country's modern pig industry has developed. The introduction of foreign pig breeds such as Duroc pigs has improved the production level of the pig industry and solved the problem of pork supply. The foreign breeds grow fast and have a high lean meat rate. , but there are problems such as poor adaptability, weak stress resistance, and decreased meat quality and flavor; [0003] Huainan pigs, a local breed in my country, are resistant to rough feeding, have strong adaptability, good meat quality, and high fecundity; but their growth rate is slow, their lean meat rate is low, and their production performance is low. They are not suitable for modern large-scale intensive breeding. , Many local pig breeds are on the verge of extinction, h...

AI Technical Summary

Problems solved by technology

[0002] Since the 1980s, my country's modern pig industry has been developed, and the introduction of foreign pig breeds such as Duroc pigs has improved the production level of the pig industry and solved the problem of pork supply; foreign breeds grow fast and have high lean meat percentages , but there are problems such as poor adaptability, weak stress resistance, and decreased meat quality and flavor;

[0003] Huainan pigs, a local breed in my country, are resistant to rough feeding, have strong adaptability, good meat quality, and high fecundity; but their growth rate is slow, their lean meat rate is low, and their production performance is low. They are not suitable for modern large-scale intensive breeding. , many local pig breeds are on the verge of extinction, how to protect and develop the local pig breed resources has become a problem to be solved at present

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