Muchammad Yunus and Agus Wijaya (2019) The Morphological Endogenous Development of Eimeriatenella Wild Strain in Primary and Secondary Infection in Chickens. The Indian Veterinary Journal, 96 (08). pp. 46-48. ISSN 0019-6479, eISSN 0974-9365

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Abstract

The endogenous development of E. Tenella wild strain was observed in primary and secondary infected chicken to know protective immunity development on host. Twenty broiler chicks at three weeks old were infected with 5 x 103 oocyst of E. tenella. Morphological parasitic endogenous development was observed at 5 days pi, oocyst production calculated at 6 to 11 days pi for primary infection. Two weeks pi, the same procedure was performed for seconda ry infection. Total oocyst production at primary infection was higher than at secondary infection. Endogenous development disabilities of parasites occur as a result of protective immunity generated at the first antigen exposure. Key words: endogenous development, E.tenella, protective immunity One of pathogenic Eimeria species in chicken is E. tenella that causes cecal coccidiosis. The assessment of protective immunity to cecal coccidiosis particularly due to E. tenella wild strain can be assessed by knowing host response to antigen exposure. One of the evaluation of antigen exposure of cecal coccidiosis can be done by observation of histomorphology of cecum as site of endogenous development of parasite and the damage caused in initial as well as repeated infection

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