禽大肠杆菌病(国外英文资料).docVIP

禽大肠杆菌病 1) birds colon bacillus disease is pathogenic e. coli serotype by certain diseases or conditions the floorboard of the bushs coli cause birds of different diseases, including e. coli septicemia, granuloma, gasbag of sex of e. coli, enteritis, swollen head syndrome, peritonitis, salpingitis, synovitis, panophthalmitis and omphalitis and a series of diseases. The disease is one of the major causes of death of poultry embryos and chickens. History and distribution were first reported by Ligniers in 1894 and isolated from the disease. Since the middle of the 20th century, the disease has become increasingly prevalent in poultry countries as the poultry industry develops, leading to huge economic losses. E. coli is a common bacteria in the poultry intestines and is part of the normal flora of the poultry, but about 10 to 15 percent of these bacteria are potentially pathogenic serotypes. There is a large amount of e. coli in the dunnage and feces, and the bacteria are the most important source of infection through eggshells and shell-film infection when the surface of the egg is contaminated with feces. Secondly, feed and water are also frequently contaminated by pathogenic e. coli, another important source of the rapid spread of e. coli after the young. Most of the escherichia coli, which is isolated from birds, only causes disease in birds, and generally does not cause infection in other animals, including humans. Chicken sensitive e. coli O157: H7, the serum strain is also an important pathogenic factor for intestinal bleeding. As a result, the disease is a potential zoonotic disease with significant epidemiological and public health implications. This disease is also one of the most common diseases of chicken farms in China, whether it is chicken or adult. E. coli is a gram-negative, non-antiacid stain, bacillus that does not form buds; The size is usually 2 mu m ~ 3 mu m, and the bacteria are not in any particular arrangement in the material and culture of th