Abstract:With the continuous promotion of agricultural mechanization, the original agricultural farming method of Erniu carrying the lever has gradually withdrawn from agricultural production. This was replaced by mechanized farming in agriculture. The use of cattle used to cultivate land has gradually become mainly for calving. There are no yellow cattle farming in the farmland, and the cattle herders are gone on the hillside. Instead, they are reared in captivity. Beef cattle are mainly raised by intensive fattening. Through the statistics of cases encountered in veterinary clinics, it is found that the cases of abnormal estrus in cows are gradually increasing, as high as 30% to 40%. According to the actual veterinary clinical work, the author found a rule that when the winter calving season comes, the number of cows with dystocia increases. After the cows calving, the farmers will feed them with corn paste every day, and the rumen accumulation will also increase. The price of silage in winter is high, and resources are scarce. They are worried that the cows will lose weight after calving and the milk secretion will be insufficient. During this process, many cows will suffer from puffiness, calf diarrhea, and rumen acidosis in cows. The most important thing is that the cows after calving are fed a large amount of concentrate for a long time, which leads to the body fat of the cows. In the diagnosis of traditional Chinese veterinary medicine, this belongs to a constitution of stagnation of cold and dampness, and the follicles are underdeveloped or stunted. Coupled with the longterm incorrect use of various veterinary drugs by animal owners, it leads to drug abuse and damage to animal bodies. The breeding industry is an industry that requires a lot of hard work. Only through the hard work of the farmers can the pastures of cattle and sheep be rich and thrive. The hard work of animal epidemic prevention workers can bring about the health and stability of animal populations. Animal husbandry and veterinary workers work with farmers to serve animals from breeding to slaughter.