猪支原体肺炎(喘气病)的防治策略（Prevention and treatment strategy of mycoplasma pneumonia in pigs）.docVIP

猪支原体肺炎(喘气病)的防治策略（Prevention and treatment strategy of mycoplasma pneumonia in pigs） Prevention and treatment strategy of mycoplasma pneumonia in pigs Wheezing, also known as porcine endemic pneumonia and mycoplasma pneumonia, is a respiratory disease caused by Mycoplasma pneumoniae, which is characterized by cough, stunted growth, high morbidity and low mortality. The most common clinical symptoms in 6-12 week old pigs, pigs mycoplasma infection often cause respiratory disease syndrome more serious 13-15 weeks and 18-20 weeks of age, the fattening period of slow growth of pigs, increased mortality. Clinical symptoms of sick pigs usually last at least three weeks, and most importantly, pigs with the same weight gain gradually become overweight and delay the market. Some data showed that the growth rate of 8kg-85kg pigs decreased by 15.9%, the growth rate of 10kg-85kg decreased by 13.8%, and the feed utilization rate was 22%. As a result of mycoplasma infection, growth finishing pig weight per kilogram 1 kg, more weight than healthy pigs, consuming 0.09-0.2 kg feed. Moreover, the lung lesion of 30%-80% in slaughtered pigs is related to Mycoplasma pneumoniae infection. 1, the prevalence of Mycoplasma Mycoplasma is a common pathogen in the culture environment, and mycoplasma infection is also a worldwide concern. But once the mycoplasma infection in pigs, it is difficult to eradicate, infected pigs often is sub clinical state. When the external infection pressure or animal stress, Mycoplasma will induce integrated respiratory syndrome, such as pig PRDC. 2, mycoplasma infection Carrier pig (infected pig and recessive infected pig) is the main source of infection of Mycoplasma pneumonia. The pathogen with pigs were cough and wheeze excreted after susceptible pigs through direct contact with respiratory secretions and carrier pigs or through contact with air flow. Once a few pigs pigs were infected, it will spread in penmates, especially in weaned pigs will be more so afte