Bovine brucellosis serum agglutination test prevalence and breed disposition according to prevalent management systems in the Lake Victoria zone of Tanzania

摘要: A total of 13078 cattle 8 months age and older belonging to 558 units in the Lake Victoria zone Tanzania were screened for brucellosis using serum agglutination test (SAT). This exercise was executed as a Tanzanian Agriculture Ministry's directive screening all adult bovines country reared under controlled grazing receiving good veterinary supervision inputs so that control measures could be instituted. In this category two types management systems encountered: Dairy, comprising 15 totalling 3626 Exotic (Friesian Ayrshire) Grade (Zebu Exotic) crosses, Ranch, 6756 mainly dual-purpose Mpwapwa (MPW) animals. These three animal have much higher milk production potential than indigenous Tanganyika shorthorn Zebu (TSZ). latter beef type is local system owned wholly by subsistence stock owners practising uncontrolled communal having little or no inputs. However, TSZ animals from 541 farm 2705 members also east south sub-zones because their close proximity Dairy/Ranch Serengeti Wildlife National Park. revealed an overall prevalence rate 10.8%. There moreover significant difference seroprevalence rates among (P < 0.001). The lowest (4.3%) found Local system, with Dairy intermediate (6.3%) Ranch highest (15.8%). variation between animals, MPW