Field evaluation of the gel diffusion test for the diagnosis of ram epididymitis caused by Brucella ovis.

A comparison was made with the microslide gel diffusion technique, the complement fixation test, cultural isolation, and clinical examination in detecting ram epididymitis caused by Brucella ovis. The results of the gel diffusion method are shown to be similar to those obtained by the complement fixation test and isolation of B. ovis from cultures of semen. The technique offers a reliable diagnostic method adaptable to field use in controlling ovine brucellosis and is more practical.