The infectious serositis was transmitted to duck by Pasteurella anatipestifer through 4 paths:trachea, abdominal cavity, crop and web. The most effective path is foot web and the suitable experimental infectious dose ...The infectious serositis was transmitted to duck by Pasteurella anatipestifer through 4 paths:trachea, abdominal cavity, crop and web. The most effective path is foot web and the suitable experimental infectious dose of bacteria is 4.5×108～6×108 cfu.展开更多
According to clinical and pathological observation in infectious serositis of duck, the main signs of this disease were diarrhoea, breathing with difficulty, head tremble and movement beyond coordination. The patholog...According to clinical and pathological observation in infectious serositis of duck, the main signs of this disease were diarrhoea, breathing with difficulty, head tremble and movement beyond coordination. The pathological changes that had been found in 30 experimental ducks were fibrous pericarditis, hepatitis, and encephalitis. The fibrous serositis, liver fatty degeneration or focus necrosis,nonsuppurative encephalitis and serous-fibrous pneumonia were typical pathological changes of histology.展开更多
文摘The infectious serositis was transmitted to duck by Pasteurella anatipestifer through 4 paths:trachea, abdominal cavity, crop and web. The most effective path is foot web and the suitable experimental infectious dose of bacteria is 4.5×108～6×108 cfu.
文摘According to clinical and pathological observation in infectious serositis of duck, the main signs of this disease were diarrhoea, breathing with difficulty, head tremble and movement beyond coordination. The pathological changes that had been found in 30 experimental ducks were fibrous pericarditis, hepatitis, and encephalitis. The fibrous serositis, liver fatty degeneration or focus necrosis,nonsuppurative encephalitis and serous-fibrous pneumonia were typical pathological changes of histology.
