| abortion due to brucella abortus in sheep in nigeria. | this paper reports on a sporadic, naturally acquired infection of sheep with brucella abortus on a privately owned farm in toro near bauchi, nigeria. the abortions, which occurred in a flock of 28 yankassa sheep, involved five ewes at the third month of gestation. serum and milk samples from the flock were examined for brucella antibodies by the rose bengal plate test, serum agglutination test (sat) and milk ring test (mrt). the proportion shown as positive by sat was 14.3%. all the five milk sa ... | 2005 | 16642768 |
| prevalence of trypanosomiasis in sheep and goats in a region of northern nigeria. | the prevalence of trypanosomosis was studied during april-june 1991, in sheep and goats kept peridomestically in alkaleri and gombe local government areas of bauchi state in northern nigeria. a total of 615 animals. consisting of 258 sheep and 357 goats were examined for trypanosome infection. of this total, 19 (7.4%) sheep and 18 (5.0%) goats were positive giving a total infection rate of 37 (6.0%), 22 being positive with trypanosoma vivax, 9 with t. congolense and 6 with t. brucei. in order to ... | 1994 | 7709031 |