Bovine tuberculosis is one of the common chronic infectious diseases in the growth of cattle, which is caused by mycobacteria. There are three main types of these tuberculosis mycobacteria: adult, bovine and avian, which not only pollutes the environment but also adversely affects the healthy growth of cattle.

The incubation period of the disease is about 16-45 days, and some of them can be more than several months. Sick cows are easy to fatigue, gradually lose weight, anemia, often appear short and dry cough, to the morning more often, inhalation of cold air is also easy to occur. The lymph nodes on the surface of the body of the sick cow can be seen to be enlarged, which is more obvious when the body is wasted, and is commonly found in the submandibular, parotid gland, neck, anterior shoulder and anterior femoral lymph nodes. There are mediastinal lymph nodes in the chest cavity of cattle, and the enlargement of this lymph node can compress the esophagus and affect the belching of cattle, so it can lead to chronic rumen dropsy in cattle. Calves with intestinal tuberculosis show poor appetite, indigestion, diarrhea, emaciation, poor growth and development. Tuberculosis of the udder, see udder lymph node enlargement, no heat, no pain, lactation reduction, milk thin as watery. In addition, tuberculosis can also occur in the reproductive organs, causing oestrus disorders and abortion in cows, causing enlargement of epididymis in bulls, and nodules and erosion in the penis. If brain and meningeal tuberculosis occurs, the sick cow shows neurological symptoms.

1, clean area. Every spring and fall for metamorphosis quarantine, regular disinfection. Buying cattle must be quarantined in situ and judged negative before entering the field. After entering the quarantine for three months, after re-quarantine indeed no tuberculosis, before entering the herd.

2, quarantine determined positive cattle, immediately eliminated, suspected reaction cattle after 25-30 days of re-quarantine, three times suspicious, can be considered eliminated.

3, sterilization. In order to prevent the spread of pathogens; cattle farms 2-4 times a year large disinfection. Cattle yards and barns should have disinfectant pools at the entrance. Feeding equipment and utensils are sterilized once a month. Feces and urine are piled up and fermented before use.

4, tuberculosis patients, not allowed to raise cattle.

This disease adopts the principle of early detection and early isolation. Serious disease of cattle or commercial cattle with low therapeutic value can be directly eliminated to prevent the spread of the epidemic. Cattle line employees, such as feeders, general practitioners, manure cleaners, breeders, etc., must be inoculated with tuberculosis vaccine before entry to prevent late infection, suspected infected cows, milk must be sterilized by boiling and discarded, prohibited from flowing into the market or feeding calves.