Enik Setyowati and Muchammad Yunus and Dadik Rahardjo (2019) The Potency of Formalin in Atenuation of Pathogeniticy in Eimeria Tenella at the Caecum of Broiler Chicken. Indian Journal of Public Health Research & Development, 10 (9). pp. 510-515. ISSN 0976-0245, eISSN 0976-5506

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Abstract

Background: Coccidiosis is a parasitic disease that disrupts digestive tract, especially in caecum. It causes a lot of harm to chicken farms. Formalin, can be a new invention as an alternative for Eimeria tanella protozoa attenuation in vaccines. Aim: To determine formalin effect and optimum concentration for formalin attenuation of pathogenicity to cecum lesions inoculated score in boiler chickens. Method: This study was an experimental study using completely randomized design (CRD) with five treatments. Treatment variation is formaldehyde with a concentration of 0%, 0.15%, 0.3%, 0.6%, 1.2% Results: Results of the study showed that formalin with different concentrations resulted in a significant decrease. Decreasing microscopic cecum lesions inoculated score in boiler chickens in each treatment 0%, 0.15%, 0.3%, 0.6% and 1.2% were 10.32; 9.86; 7.00; 5,14; 4.98 respectively. The largest decrease in lesion score was at 1.2%. Conclusion: Formalin with 1.2% concentration could reduce cecum lesions inoculated score in boiler chickens Keywords: Formalin, E. tenella, Caecum of boiler chicken, Attenuation

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