الفهرس | Only 14 pages are availabe for public view |
Abstract Summary:- Coccidia appear to be ubiquitous in distribution, it acts as the principle pathogens through the world. Coccidia are host strict and organ specific. Two forms of coccidia can infest rabbits. The first is hepatic coccidiosis caused by E. stiedae which parasitize the bile duct epithelium, while the second form is the intestinal coccidiosis, caused by several species of Eimeria and they rarely found in pure infestation. Forty five New Zealand white rabbits of both sexes were employed in this work. The practice of this work is divided into three experiments. The first experiment included twenty rabbits (45 days old), they were divided into 4 equal groups. The first three groups were orally infested with E. stiedae (10,OOO/2ml) sporulated oocysts whereas the 4th group was infested at a dose 5,OOO/2ml sporulated oocysts. All the studied rabbits of the 1st experiment were slaughtered at 10th, 20th, 30th and 90th days post infestation. Ten New Zealand rabbits (2-3 months old) in the second experiment were naturally infested with intestinal coccidiosis, while other ten New Zealand white rabbits (2-3 months old) were naturally infested with both hepatic and intestinal coccidiosis. The rabbits employed in this experiment were slaughtered after appearing of the clinical signs and oocysts in their feces. The last five New Zealand white rabbits (45 days old) which were free from coccidiosis or any disease were considered as control group. |