Bovine tuberculosis is one of the common chronic infectious diseases during the growth of cattle. It is caused by mycobacteria. This type of Mycobacterium tuberculosis mainly has three types: adult type, bovine type and poultry type, which not only brings pollution to the environment, but also adversely affects the healthy growth of cattle. Therefore, today Xiaobian says that the incidence of bovine tuberculosis Causes and prevention measures. 1 Causes of bovine tuberculosis Bovine tuberculosis is caused by Bovine Mycobacterium tuberculosis. It is mainly transmitted through the respiratory tract and digestive tract of cattle. The tuberculosis of the cattle will be excreted with the nose, saliva, excrement, etc., and then pollute the feed, drinking water and air environment. . 2 symptoms of bovine tuberculosis 2.1 Symptoms of sick cows with tuberculosis In the early stage of a diseased cow with tuberculosis, there will be a rapid dry cough, which will aggravate the coughing condition. The number of breathing of the sick cow increases, accompanied by asthma. The appetite of the sick cow is reduced and the body temperature is slightly elevated. 2.2 Symptoms of sick cows with lymphatic tuberculosis The sick cow has chronic swelling symptoms, which causes the sick cow to swallow and suffocate. 2.3 Symptoms of sick cows with breast tuberculosis The diseased cow's breast lymph nodes are swollen, and the uneven surface of the breast is inconsistent, which reduces the amount of milk in the diseased cow. When the disease is in the late stage of the disease, the lactation of the diseased cow's mammary gland will stop. 2.4 Symptoms of sick cows with intestinal tuberculosis The disease occurs mostly on yaks. The yak will have diarrhea and constipation. The stool will have blood or pus, and the smell will stink. 3 Prevention and control measures for bovine tuberculosis 3.1 Preventive measures against bovine tuberculosis (1) Regular quarantine of bovine tuberculosis For bovine tuberculosis, it is necessary to quarantine twice a year. When a positive cow is diagnosed, it must be eliminated. For a herd with positive tuberculosis, it should be carried out for the second time after 30-45 days of the first quarantine. 30-45 quarantine once. (2) Herd control measures for cattle tuberculosis Isolation treatment of the diseased cattle to prevent the spread of the disease; the design of the barn should meet the requirements of environmental hygiene; regular disinfection, can use 5 ~ 10% hot alkaline water, 10% bleaching powder, 3% formalin, 3% caustic Sodium and 3 to 5% come to Suer. (3) Control measures for breeding cattle Adhere to artificial insemination for breeding; use good breeding frozen semen to breed cattle; when purchasing cattle, it is necessary to strictly quarantine, first isolate and culture for a period of time, and then confirm that there is no tuberculosis before they can be farmed in groups. (4) Vaccination measures against cattle For the threatened yak, BCG vaccination can be carried out. Generally, 30 to 100 ml is injected subcutaneously in the bovine chest under 30 days after birth, and then vaccinated once a year. 3.2 Treatment of bovine tuberculosis Treatment with streptomycin, isoniazid and sodium salicylate; timely elimination of diseased cattle. For the wonderful pictures and popular comments about bovine tuberculosis, you may be interested in the following recommended contents. Welcome to read. Hand massager Hand massager Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.meizons.com
