Efficiency investigation of using Ozone on immune response ,PCV and FCR of broilers

Document Type : Full Research Paper

Author

By: Nabinejad, A., Assistant Professor of Veterinary Research Group,(Isfahan Agricultural And Natural Resources Research Center), Agricultural Research, Education, and Extension Organization (AREEO), Isfahan, IRAN.

Abstract

For investigation of ozone application in broilers breeding, a broiler farm with a capacity of 40,000 chose (4 houses of 10000) and bred chicks for 45 days in two groups of treatment and control (4X10000), in the control groups conventional chemical disinfectantused for initial stages and along breeding time disinfection In the treatment group the ozonated air (0.1 - 0.3 ppm) and ozonated water (0.8-1 ppm) was used for initial and breeding period disinfection. The first day titer status were detected by sampling of 20 chicks. The herd vaccination for ND, AI, IB and IBD during the breeding time well done and blood sampledat 21 and 42 days for antibody titration and PCV evaluation. Using statistical T-test the results of treatment and control group compared. There was a significant difference
(P <0.01) in the ND titer and the PCV%(P <0.05) between groups at the day of 21 but were not significant difference for other factors. The analysis at 42 days of age just show significant differences in the ND titer and the PCV% between two groups (p <0.05). Mean mortality rate of control and treatment groups were 8.3% and 6.6% and condemned carcasses in slaughter house were 0.8% and 0.5% respectively. Comparison of mortality rate and FCR results of 2 groups, showed lesser mortality rate and FCR value intreatment group to control group.It is concluded that using Ozone improved immune response to vaccination and FCR and decreased the mortality rate and carcass condemnation.

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