As a kind of meat-type bull, its physical appearance and production performance should be in line with this species of breeder special grade and a standard, after the determination of descendants can be used as the main species of communal animals. Meat performance and reproduction traits are two extremely important economic indicators for meat-type bulls. Secondly, breeding bulls must be quarantined to confirm that they are free of infectious diseases, robust in physique, adaptable to the environment, and resistant to disease. Adult bulls can be harvested twice a week. Each time, two consecutive runs can be performed according to circumstances and needs. Before harvesting, bull penis and foreskin should be washed with warm water and then rinsed with sterile saline. The color of fresh semen should be milky white, yellow, straight forward movement is not less than 60%, sperm concentration is not less than 600 million per milliliter, and the rate of malformation is less than 15%. The best way to determine the heredity of an individual's bull is to determine the progeny, and it is the most reliable one based only on the performance of the offspring. The same month old son or daughter with several bulls is kept under the same living conditions, and the daily energy gain and digestible protein amount of 1 kilogram per weight gain of the bull's offspring at different finishing stages or during the whole period are measured. After slaughter, the weight of slaughter, the slaughter rate, the net meat weight, the net meat rate, etc. are calculated. Only qualified bulls that are determined by progeny can be used for breeding.
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