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Abstract
A total of 4236 blood samples were collected from cattle (1800), buffaloe (1290), sheep (855) and goat (261) slaughtered in Menouf and shibin abattoirs located at Menoufia governorate. Accurately, Buffered Acidified plate test (PAPAT), Rose Bengal plate test (RBPT) and Tube Agglutination test (TAT) were applied for detection of positive samples of brucellosis. Furthermore, 25 each of retropharyngeal, prescapular, prefemoral, mediastinal, mesenteric and supra mammary lymph nodes, ovary, testis, liver, spleen, kidneys and muscles of positive, cattle, buffaloe, sheep and goat carcasses were subjected to further bacteriological and serological examination to confirm the presence of brucellosis. The obtained results indicated that the incidence of brucella species recovered species recovered from cattle, buffaloe, sheep and goat slaughtered in Menoufia Governorate by different serological test were 2.22%, 2.71%, 5.87% and 11.49% by BAPAT, 2.05%, 2.32%, 5.31% and 10.34% by RPBT and 1.40%, 2.01%, 4.63% and 9.57%by TAT, respectively. Moreover, the incidence of Brucella among such slaughtered food animals during winter, spring, summer and autumn seasons was 1.21%, 3.58%, 1.24% and 0.92% with an annual average of 1.45% for cattle, 0.86%, 0.82%, 0.76% and 0.73% with an annual average of 0.78% for buffaloe, 2.99%, 6.19%, 2.32% and 1.45% with an annual average of 3.29% for sheep and 2.65%, 6.17%, 3.18% and 3.09% with annual average of 3.80% for goat, respectively. On the other hand, the bacteriological examination of different organs and tissues of suspected positive animals declared that retropharyngeal, prescapular, prefemoral, mediastinal, mesenteric, supra mammary lymphnodes, genitalia, liver, spleen and kidney were positive for brucellosis with percentages of 80%, 48%, 0, 0, 0, 52%, 24%, 44%, 80% and 16% for cattle, 60%, 24%, 0, 0, 0, 48%, 28%, 32%, 48% and 12% for buffaloe, 60%, 40%, 60%, 40%, 12%, 60%, 40%, 40%, 48% and 32% for sheep for sheep and 40%, 32%, 28%, 24%, 8%, 40%, 32%, 28%, 40% and 20% for goat, respectively. However, all examined muscle samples of all animal species were free from Brucella species. Finally, some recommendation to avoid slaughtering of food animals infected with brucellosis in Egyptian abattoirs to protect the meat handlers and consumers were discussed.