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SEROLOGICAL EVIDENCE OF AVIAN PARAMYXOVIRUS-2 INFECTION IN BACKYARD AND COMMERCIAL POULTRY BIRDS IN SAUDI ARABIA

A. N. ALKHALAF

Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, P. O. Box 1482, Buraydah, Qassim, Saudi Arabia

Abstract

    Serological survey was conducted to detect avian paramyxovirus serotype-2 (APMV-2) antibodies in commercial and backyard bird flocks, using Enzyme-linked immunosorbent assay (ELISA) and haemagglutination inhibition (HI) test. Sera were collected from 212 commercial and 56 backyard birds. Age of commercial birds ranged from one-day old to 62 weeks. In the backyard birds, seroprevalence of APVM-2 was 71.42 and 78.57%, whereas this seroprevalence was 52.35 and 60.84% using the HI test and the ELISA, respectively in commercial poultry birds. No antibodies against APMV-2 were detected in 1-5 days old chicks with either test. The HI test showed the highest positive samples (P<0.05) of APMV-2 in 19-35 days age group (58.33%), followed by age group 11-18 weeks (51.35%) and 25-62 weeks (47.05%). Similarly, ELISA also showed the highest positive samples of APMV-2 (68.75%) in 19-35 days age group (P<0.05),followed by age group 11-18 weeks (62.16%) and 25-62 weeks (56.86%). In conclusion, this study indicated the presence of antibodies to APMV-2 among backyard and commercial poultry birds in Saudi Arabia.

Key words: Avian paramyxovirus, serological survey, ELISA, HI test.

 
   

ISSN 0253-8318 (Print)
ISSN 2074-7764 (Online)



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