الفهرس | Only 14 pages are availabe for public view |
Abstract Respiratory disease considered one of the most causes of economic loss in cattle industry especially due to bacterial and mycoplasmal infection. A total of 556 samples were collected from cattle from different cattle farms and slaughter houses at Sharkia, Cairo Govemorate, Egypt, including 169 nasal swabs, 129 tracheal samples, 129 lung and 129 bronchial lymph nodes. The highest incidence was from bacteria 37.9%, followed by Mycoplasma (17%), Acholeplasma (10.8%), while mixed infection was (21.4%), Mycoplasma species was isolated by percentage of (17%). Diseased cattle revealed the highest incidence than apparently healthy one reaching 22.6%, 9.9% respectively. The highest isolation rate was from lung of diseased and apparently healthy animals 24.8%, while lymph nodes showed the lowest isolation rate 10%. Biochemical identification revealed that M arginini was the highest incidence by percentage of 7%, followed by M bovis 6.5%, M bovithinis 1.9% while the lowest incidence was from M bovigenitslium 1.6%. Bacteria species were isolated by percentage of 37.9%. The incidence of bacteria from diseased cattle were 43% while from the apparently healthy one were 30.9%, nasal swabs revealed the highest incidence of bacteria reaching 45.5%, while bronchial lymph nodes were the lowest incidence reaching 26.3%. |