Coproscopic examination at 21, 60 and 90 days have shown various coccidia species in lambs belonging to three different farms. These animals slaughtered for butchery between 100 and 120 days have been sampled for lesions in the small intestine. We tried to determine if the site or structure of lesions could be linked to a special kind of coccidia. The results we obtained cannot answer this question, may be because in natural conditions there is not a monospecific coccidia infection, may be because the lambs did not suffer from a clinical coccidiosis, certainly because there is not a compulsory link between oocyst found in feces by coproscopy and the species of coccidia which evolve in the intestinal mucosa.