| toxoplasma antibodies in polo horses of nigeria. | a serological survey of toxoplasma antibodies was carried out amongst horses used for polo game in nigeria using the indirect haemagglutination test (iha). a total of 70 horses from kaduna, kano and jos that were assembled in zaria for the annual national tournament were sampled. 26 (37.1%) of these were seropositive to t. gondii with the highest serological titre at 1:256. out of the 52 local breeds, 20 (38.5%) were seropositive while of the 18 argentine breeds, 6 (33.0%) were seropositive. no ... | 1983 | 6676339 |