All cattle can be fattened, but due to differences in the characteristics of growth, digestion and adaptability of different breeds, their fattening effects are different. In order to achieve the desired economic benefits, it is best to make appropriate choices for fattening cattle. 1. Breeding purebred beef cattle can achieve the best fattening effect. These cows can benefit from the likes, Simmental cattle, Charolais cattle, and Forford cattle. The daily gain of the cattle can reach 2500-3000 g. However, most of these cattle are introduced from abroad and the number is very small. Obviously there will be shortage of cattle resources. According to a large amount of research data, the offspring of our country's local cattle hybrids and the introduction of purebred beef cattle breeds have greatly improved the production performance. Therefore, it is possible to provide adequate fattening by promoting the crossbreeding of local cattle breeds. With cattle, such as the introduction of the Shandong Limousin cattle, such as Swiss Simmental cattle and other hybrids. 2. The key technology for age science fattening is to make full use of the growth characteristics of cattle. The growth and development characteristics of cattle at different ages are different, so there are certain differences in feeding and management. Generally speaking, calves, bred cattle, and adult cattle can all be fattened, and the main differences in their effects are feeding and management techniques and meat quality. Research and practice show that the best finishing age is 1-2 years old. This kind of cattle has a strong growth and has a higher growth capacity than other ages. Therefore, beef cattle development countries mainly produce beef cattle less than 2 years old. 3. At present, in domestic beef cattle selection and cross-breeding effect evaluation, both use the body structure scores required from the meat aspect. Here only the ideal body shape requirements for fattening cattle are introduced. (1) Body shape above middle body, skeleton appears taller, longer and wider. At the age of one year, it shows a very strong growth potential and is relatively late-maturing. (2) The degree of muscular development, muscular, yak muscles, muscles of the shoulders and forelimbs prominent, full within the hindquarters, lateral fullness, developed muscles until the hock. (3) The sensation requires middle and upper grades, the degree of goodness is good, the back and buttocks are square, the shoulder veins, the elbow protrusions, the inside of the ribs are full, the chest and the skin are rich.
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