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 ...200516642768
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