| oocyst counts in crossbred ewes under tree-crop plantation in the forest zone of ghana. | in this paper, the eimeria oocyst output of two groups, pregnant ewes (group 1) and non-pregnant controls (group 2), which were followed from september 1993 to august 1994, is described. in both groups of animals the level of oocyst output was high during the minor rainy season. however, during the periparturient period the pregnant ewes showed the higher oocyst output. the oocyst output in both group fell to similar levels after weaning of the lambs in march 1994. the species of eimeria identif ... | 1998 | 9881432 |