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Asian Journal of Animal and Veterinary Advances

Year: 2022 | Volume: 17 | Issue: 1 | Page No.: 28-32
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Authors

M.C. Kadja

M.C. Kadja

G.A. Millogo

S. Sourokou Sabi

Y. Kane

Y. Kaboret

Keywords

Research Article

Sero-Epidemiological Survey of the Main Respiratory Infections in Broiler Farms in the Peri-Urban Area of Dakar and Thies (Senegal)

M.C. Kadja M.C. Kadja's LiveDNA, G.A. Millogo, S. Sourokou Sabi, Y. Kane and Y. Kaboret
Background and Objective: A seroepidemiological survey was carried out in Senegal in an area with a high concentration of poultry for Newcastle disease, infectious bronchitis (IB), LPAI subtype H9 and Mycoplasma gallisepticum mycoplasmosis in broilers. Materials and Methods: During the survey, 20 broiler farms with at least 1,000 clinically affected birds per flock aged 16-45 days with respiratory symptoms were visited. On each farm, a questionnaire was administered and blood samples were taken from 20 chickens in the most affected house. A serological investigation by indirect ELISA was carried out on 384 sera. Serological infection rates varied according to disease, age, vaccination program and husbandry system. Results: The infection rates were in order of importance 40% for LPAI subtype H9, 35% for infectious bronchitis and 5% for Newcastle disease. Serology was negative for Mycoplasma gallisepticum. Infection rates were higher in the department of Rufisque, in semi-intensive farms and older chickens. Co-infections were observed with higher importance for the IB-LPAI association. The evaluation of vaccine efficacy revealed that 70% of cases of Newcastle disease, 42.86% of cases of infectious bronchitis and 26.31% of cases of LPAI subtype H9 were suspected of being ineffective. Conclusion: This work shows the need to have a database for the implementation of a medical prophylaxis programme specific to the epidemiological conditions of these farms. Nucleic acid sequencing to identify circulating serotypes is the next step.
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How to cite this article

M.C. Kadja, G.A. Millogo, S. Sourokou Sabi, Y. Kane and Y. Kaboret, 2022. Sero-Epidemiological Survey of the Main Respiratory Infections in Broiler Farms in the Peri-Urban Area of Dakar and Thies (Senegal). Asian Journal of Animal and Veterinary Advances, 17: 28-32.

DOI: 10.3923/ajava.2022.28.32

URL: https://scialert.net/abstract/?doi=ajava.2022.28.32

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