Breeding method for new beef cattle strain

Abstract

The invention relates to cattle breeding methods and particularly relates to a breeding method for a new beef cattle strain. The method comprises the steps of subjecting Sinan yellow cattle, which serve as female parents, and Angus bulls to crossing so as to obtain F1 cattle, subjecting the F1 cattle, which serve as female parents, and Wagyu cattle, which serve as male parents, to crossing so as to obtain three-way cross cattle, selecting excellent individuals from the three-way cross cattle according to growth performance, carcass traits, milk producing ability and macroscopic features as breeding cattle, then, organizing families, and carrying out intersect-breeding, thereby obtaining the new beef cattle strain. According to the method, the produced cross cattle have the characteristics of whole-body black hair, high production rate, high adaptability to local climatic environments, good meat quality, and the like.

Description

technical field [0001] The invention relates to a method for cultivating cattle, in particular to a method for cultivating a new strain of beef cattle. Background technique [0002] At present, there is no specialized beef cattle breed in Guizhou Province. Local cattle breeds have long existed as draft livestock, mainly used for farming and pulling carts. They generally have disadvantages such as small size, slow growth, and low meat production performance. Therefore, it is necessary to systematically implement scientific group breeding techniques. The overall genetic improvement of the beef cattle herd can make up for the shortage of local cattle. [0003] In recent years, the technology of improving local cattle hybridization by crossbreeding foreign cattle is in the ascendant. Most of the offspring produced by crossbreeding Simmental, Charolais, Angus, Limousin, Piedmont, Hereford, and Wagyu cattle have Good growth trend and meat production performance, but the reproduc...

AI Technical Summary

Problems solved by technology

Local cattle breeds have long existed as draft livestock, mainly used for farming and pulling carts. They generally have disadvantages such as small size, slow growth, and low meat production performance. Therefore, it is necessary to systematically implement scientific group breeding techniques. Make the overall genetic improvement of the beef cattle herd and make up for the shortage of local cattle

[0003] In recent years, the technology of improving local cattle hybridization by crossbreeding foreign cattle is in the ascendant. Most of the offspring produced by crossbreeding Simmental, Charolais, Angus, Limousin, Piedmont, Hereford, and Wagyu cattle have Good growth trend and meat production performance, but the reproductive rate of cows is low, and dystocia occurs frequently. At the same time, the calf death rate is high, and the feed management cost of hybrid cattle is high during the fattening period

[0004] Among them, in many regions of my country, Simmental cattle are often used for crossbreeding with local cattle, often because the cows are small, have narrow pelvis and disproportionate pelvis, which prevent the fetus of hybrid cattle from passing through the birth canal, or the fetus of hybrid cattle is too large, so that the delivery time is too long , causing hybrid cattle fetuses to fail to produce normally

Today, the hybridization of Wagyu and local cattle is favored by breeding researchers. Among them, Wagyu not only has the characteristics of Simmental, Charolais, Angus, Limousin, Piedmont, Hereford and other foreign cattle with fast growth and high yield. The feature of high meat volume also improves the shortcomings of these foreign cattle’s poor fat deposition ability, thereby improving the meat quality of crossbreed cattle, but the fertilization rate of cows crossed with Wagyu is low, and the physique of crossbreed cattle produced is smaller, and the offspring are reared high cost

[0005] Nowadays, although the growth status and meat production rate of foreign breed hybrid cattle have been improved, their poor adaptability leads to low survival rate and high incidence of disease. At the same time, the hybrid cattle have poor tolerance to coarse feed, which increases the economic cost of farmers. , and the breeding of hybrid cattle is in a weak stage of development. Due to unreasonable breeding standards, the population of hybrid cattle is still messy and has no distinctive characteristics after several or even dozens of generations of hybridization. Therefore, the development of hybrid cattle is not not ideal

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