Nanyang cattle is one of the five excellent yellow cattle breeds in China, which has important breed protection and breeding value. The establishment of Nanyang cattle embryo gene bank by in vitro maturation culture and in vitro fertilization technology is a new way to protect Nanyang cattle breeds. It not only benefits from the unique ecological status and natural resources of Tanghe and Baihe basins in Nanyang basin, but also is closely related to the hard work of Nanyang people for thousands of years.
Farmers in Nanyang have always had the habit of raising cattle. As early as the Spring and Autumn Period, Nanyang cattle had entered the stage of house feeding and captivity. Bai is a famous prime minister of Qin, who is good at raising cattle. For most of his later years, raising cattle in Qilin Port in the west of Nanyang became his main livelihood. During the Ming and Qing Dynasties, Nanyang cattle spread all over the Tangbai River basin. The long history of raising cattle in Nanyang Basin has bred the custom of raising cattle for thousands of families. Farmers in Nanyang generally have the habit and technology of raising cattle.
When raising beef cattle, the required area of each cow inside and outside the farm is 4.65 square meters for breeding cattle, 2.79 square meters for weaned calves, 3.72 square meters for one-year-old calves and 4. 18-4.65 square meters for fattened cattle, and the required vitamin B26 protein is 9.29-1. Beef contains potassium and protein potassium, which are minerals that most athletes lack in their diet. Low potassium can inhibit the production of growth hormone in protein and children, and then affect the growth and development of muscles.