1. Oocyst discharge, clinical signs, histopathology, and pathomorphology were compared in different dosage group for evaluate its pathogenicity.

2. METHODS: The oocyst of Cryptosporidium parvum in 5421 fresh stool samples from eleven areas of Anhui province was tested by auramine phenol stain and improved anti acid stain respectively.

3. No significant difference in the oocyst recovery, purity and infectivity was found between methods using saturated saline floatation and sucrose density gradient centrifugation.

4. The possible reasons that no oocyst was found are discussed.

5. Studies have shown that only about 2% of cats are shedding oocysts at any one time[sentencedict.com/oocyst.html], and that oocyst shedding does not recur even after repeated exposure to the parasite.

6. Wilmut said there were so many failures because it was difficult to ensure that the empty oocyst and the donor cell were at the same stage of the cell division cycle.

7. After a meiotic reduction in chromosome number sporozoites are formed within the oocyst.

8. The test based on previous experiment, and separate technology of single oocyst were improved that 2% agar block was used to separate single oocyst , and made single oocyst into capsule.

9. Methods The level of parasitemia in blood from infected BALB/c mice and oocyst formation in mosquitoes-Anopheles stephensi were observed before and after dealing with NOC5.

10. The ultrastructural changes of sporoblast and sporozoite formation within oocyst of Plasmodium vivax in Anopheles dints was observed by transmission electron microscope.

11. In high dosage, the treated group has less pathological change, and the average oocyst number is clearly higher than that of the control group.

12. Study on the effects of chicken's different age to coccidia single oocyst separation. Dealing with it by using three differents age of chicken that are 5 days, 8 days and 11 days.

13. Objective To develop an in vitro culture system for Cryptosporidium parvum in Madin-Darby canine kidney (MDCK) cell and observe its life cycle (from desquamate to oocyst).

14. Through calculating four drug's percentage of optimum anticoccidial activity (POAA), reduction of Lesion Scores(RLS), relative Oocyst Production(ROP) and anticoccidial index(ACI).