论文部分内容阅读
猪支原体肺炎是由猪肺炎支原体感染所引发的一种慢性接触性呼吸道疾病,又称猪地方流行性肺炎,该病一直被认为是对养猪业造成重大经济损失、最常发生、流行最广、最难净化的重要疫病之一。患病母猪通过接触能直接传染乳猪,被感染的乳猪在离乳后再感染其他的猪群,高密度的饲养能够促使本病的传播。由于猪支原体肺炎的潜伏期较长,因此很多猪群在不被发觉的情况下感染,致使本病在猪群中常年存在。该病在世界广泛流行,猪群感染率
Mycoplasma pneumoniae is a chronic contact respiratory disease caused by Mycoplasma hyopneumoniae infection, also known as swine endemic pneumonia, which has long been considered as a major economic loss to the pig industry, most commonly occurring and most prevalent One of the most difficult to purify the important diseases. Affected sows can directly infect suckling pigs through contact with each other. Infected suckling pigs infect other pigs after they leave their breasts. High-density feeding can promote the spread of this disease. Due to the longer incubation period of mycoplasma pneumonia, many pigs are infected without being detected, resulting in the perennial existence of this disease in herds. The disease is widespread in the world, herd infection rates