What are the symptoms of blue ear disease in pigs?

Pig blue ear disease was once called "mysterious pig disease" and "new pig disease". It is listed as a second-class infectious disease in our country. If the disease is not effectively controlled in the early stage of the disease, it is easy to be infected in a large area. Therefore, many farmers attach great importance to pig blue ear disease. So what are the symptoms of pig blue ears?

Symptoms of the disease

In the early stage of pigs infected with blue ear disease, the main manifestations were depression, loss of appetite, inactivity, lying in the pigsty all day. Then the pig's body temperature will rise, with the aggravation of the disease, the pig's body temperature will maintain a higher temperature, in severe cases, the temperature can reach more than 40 ℃. In the later stage of the disease, the pig's head will be swollen, which will be very obvious compared with normal pigs. At the same time, the pig will also appear blue-purple, the area will continue to expand.

Second, the group and time of the disease

The onset time of blue-ear disease of pigs is mainly concentrated in three periods: first, three months after pregnancy, at this stage, the pig fetus in sows is developing rapidly, the resistance of the mother continues to decline, and it is very easy to be infected with blue-ear disease; second, piglets born just 2 months after birth, the immune system of piglets is very fragile during this period, if the breeding method is not proper, they are likely to be infected with blue-ear disease. The third is the incidence of boars, the incidence of boars is relatively low, most of them are concentrated in the boar 150ml 200jin, at this time we need to pay more attention to the status of boars and do a good job of prevention.

Third, the cause of the disease

The causes of blue ear disease in pigs can generally be divided into two kinds, one is caused by external factors, and the other is caused by improper feeding methods. Most of the external factors refer to the infection caused by the virus in the newly added pigs, or the transmission of porcine blue ear virus from nearby pig farms to their own pig farms through air transmission; improper feeding methods mainly refer to substandard pig farm hygiene, inadequate disinfection and so on. These may be the causes of blue ear disease in pigs.

At present, the mortality rate of blue-ear disease in pigs is very high. Once pigs are found to be infected with the disease, the whole pig farm should be disinfected immediately to do a good job of prevention and avoid large-scale infection. There are many symptoms of blue ear disease in pigs, which requires special attention in the time when it is easy to occur, so that it can be treated in time.