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Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens

Two experiments were conducted to determine the efficacy of a new technology vaccine, Vectormune® ND, a vector vaccine against Malaysia velogenic Newcastle disease virus (vNDV) genotypes VII (GVII) and VIII (GVIII) in broiler chickens. The study demonstrated that the vaccination programme could prov...

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Main Authors: Bejo, Mohd Hair, L., Jessica T. M., Saw, P. Y.
Format: Conference or Workshop Item
Language:English
Published: Faculty of Veterinary Medicine, Universiti Putra Malaysia 2015
Online Access:http://psasir.upm.edu.my/id/eprint/65001/1/PA-2.pdf
http://psasir.upm.edu.my/id/eprint/65001/
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spelling my.upm.eprints.650012018-09-03T04:20:38Z http://psasir.upm.edu.my/id/eprint/65001/ Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens Bejo, Mohd Hair L., Jessica T. M. Saw, P. Y. Two experiments were conducted to determine the efficacy of a new technology vaccine, Vectormune® ND, a vector vaccine against Malaysia velogenic Newcastle disease virus (vNDV) genotypes VII (GVII) and VIII (GVIII) in broiler chickens. The study demonstrated that the vaccination programme could provide 100% protection to the chickens against GVII challenged at days 31 or 35 of age. Protection of 95% was achieved when the chicken were challenged with either GVII or GVIII at day 14 of age. The HI antibody titre and protection increased with time. GVII infected chickens in the unvaccinated group showed milder lesions with lower mortality rate when compared to the GVIII infected chickens. Torticollis was commonly recorded in chicken infected with GVII. It was concluded that a vaccination programme combining Vectormune® ND with a live attenuated ND/IB vaccine and a booster vaccination with La Sota is highly effective to provide protection to the chickens against GVII or GVIII challenged. Outbreaks of ND in the country is not due to failure of the NDV vaccine strains, but rather than due to other factors that lead to vaccination failures as well as poor vaccination strategy. Faculty of Veterinary Medicine, Universiti Putra Malaysia 2015 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/65001/1/PA-2.pdf Bejo, Mohd Hair and L., Jessica T. M. and Saw, P. Y. (2015) Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens. In: World Veterinary Poultry Association (Malaysia Branch) and World's Poultry Science Association (Malaysia Branch) Scientific Conference 2015, 21-22 Sept. 2015, Kuala Lumpur Convention Centre, Kuala Lumpur, Malaysia. (pp. 28-31).
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Two experiments were conducted to determine the efficacy of a new technology vaccine, Vectormune® ND, a vector vaccine against Malaysia velogenic Newcastle disease virus (vNDV) genotypes VII (GVII) and VIII (GVIII) in broiler chickens. The study demonstrated that the vaccination programme could provide 100% protection to the chickens against GVII challenged at days 31 or 35 of age. Protection of 95% was achieved when the chicken were challenged with either GVII or GVIII at day 14 of age. The HI antibody titre and protection increased with time. GVII infected chickens in the unvaccinated group showed milder lesions with lower mortality rate when compared to the GVIII infected chickens. Torticollis was commonly recorded in chicken infected with GVII. It was concluded that a vaccination programme combining Vectormune® ND with a live attenuated ND/IB vaccine and a booster vaccination with La Sota is highly effective to provide protection to the chickens against GVII or GVIII challenged. Outbreaks of ND in the country is not due to failure of the NDV vaccine strains, but rather than due to other factors that lead to vaccination failures as well as poor vaccination strategy.
format Conference or Workshop Item
author Bejo, Mohd Hair
L., Jessica T. M.
Saw, P. Y.
spellingShingle Bejo, Mohd Hair
L., Jessica T. M.
Saw, P. Y.
Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens
author_facet Bejo, Mohd Hair
L., Jessica T. M.
Saw, P. Y.
author_sort Bejo, Mohd Hair
title Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens
title_short Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens
title_full Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens
title_fullStr Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens
title_full_unstemmed Protection of new technology vaccine against Malaysia velogenic NDV GVII and GVIII isolates in broiler chickens
title_sort protection of new technology vaccine against malaysia velogenic ndv gvii and gviii isolates in broiler chickens
publisher Faculty of Veterinary Medicine, Universiti Putra Malaysia
publishDate 2015
url http://psasir.upm.edu.my/id/eprint/65001/1/PA-2.pdf
http://psasir.upm.edu.my/id/eprint/65001/
_version_ 1643838189297729536
score 13.211869

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