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All Journal Buletin Veteriner Udayana
Alberto Agustinho Pereira Da Costa Joao
Departamento de Saúde Animal, Faculdade de Agricultura Universidade Nacional Timor Lorosa’e, Timor Leste
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Immunology & microbiology Medicine & Pharmacology Public Health Veterinary

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Seroprevalensi dan Profil Antibodi Anti-Virus Newcastle Disease Pasca Vaksinasi pada Ayam Kampung di Kabupaten Bobonaro Timor-Leste Alberto Agustinho Pereira Da Costa Joao; I Nyoman Mantik Astawa; Anak Agun Ayu Mirah Adi
Buletin Veteriner Udayana Vol. 14 No. 4 August 2022
Publisher : The Faculty of Veterinary Medicine, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (163.666 KB) | DOI: 10.24843/bulvet.2022.v14.i04.p16

Abstract

The objective of this study was to determine anti-Newcastle disease virus (NDV) antibody titres in sera samples of pre-vaccinated and post-vaccinated local chickens in the villages of Lahomean, Odomau Raifun and Ritabou, Bobonaro District Timor-Leste. Eighty sera samples of pre-vaccinated and 79 samples of post-vaccinated chickens were collected from village chicken farms bred extensively in all four villages. The sampling techniques adopted were simple random and purposive sampling methods to select subjects based on predetermined criteria. Antibody titers against NDV in serum samples were examined by using hemagglutination test (HA) and hemagglutination inhibition test (HI). The data obtained in this studi were presented descriptively. The results showed that of 80 sera samples collected from pre-vaccinated chickens, 53 (66.25%) sera samples were seronegative with the antibody titers of < 23 (21 – 23) HI units and 27 (33,75%) sera samples were seropositive with antibody titers of 24 – 210 HI units. As for 79 sera samples collected from post-vaccinated chickens, 46 (57%) samples were seronegaitive with the antibody titers of 21 – 23 HI and 33 (43%) sera samples were seropositive with antibody titer of 24 – 211 HI units. The results showed that presence of anti-NDV antibody in prevaccinated chickens was very likely due to the natural infection and vaccination increased the titers and the number of seropositive chickens.
Co-Authors Anak Agung Ayu Mirah Adi I NYOMAN MANTIK ASTAWA