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Full-Text Articles in Medicine and Health Sciences
Efficacy Of Different Vaccination Programs Against Newcastle Disease Virus Challenge In Broiler Chickens, Jiroj Sasipreeyajan, Tawatchai Pohuang, Nida Sirikobkul
Efficacy Of Different Vaccination Programs Against Newcastle Disease Virus Challenge In Broiler Chickens, Jiroj Sasipreeyajan, Tawatchai Pohuang, Nida Sirikobkul
The Thai Journal of Veterinary Medicine
The present study was designed to determine the protection afforded by different vaccination programs against the virulent Newcastle disease virus (vNDV). The chickens were divided into 7 groups, 40 chickens in each. Group 1 did not receive any vaccine and served as a negative control group. Groups 2-7 were vaccinated with different vaccination programs against vNDV. At 1 day old, the chickens in all the vaccinated groups were inoculated with live attenuated vaccine, Ulster strain, followed by different inactivated vaccines including 0.1 ml/chicken of inactivated vaccine A in groups 2 and 4, 0.1 ml/chicken of inactivated vaccine B in groups …
The Pathogenesis Of A New Variant Genotype And Qx-Like Infectious Bronchitis Virus Isolated From Chickens In Thailand, Tawatchai Pohuang, Jiroj Sasipreeyajan
The Pathogenesis Of A New Variant Genotype And Qx-Like Infectious Bronchitis Virus Isolated From Chickens In Thailand, Tawatchai Pohuang, Jiroj Sasipreeyajan
The Thai Journal of Veterinary Medicine
This study was designed to investigate the pathogenesis of infectious bronchitis virus (IBV), a new variantgenotype and QX-like IBV, isolated in Thailand. Sixty, 28-day-old, female broiler chickens were divided into 3 groupsof 20 chickens each (groups 1-3) and sixty, 1-day-old, female broiler chickens were divided into 3 groups of 20chickens each (groups 4-6). The chickens in groups 2 and 5 were inoculated with QX-like IBV (isolate THA80151)whereas the chickens in groups 3 and 6 were inoculated with a new variant genotype IBV (isolate THA90151). Thechickens in groups 1 and 4 served as negative control groups. Clinical signs and mortality rates …
Efficacy Of Different Vaccination Programs Against Thai Qx-Like Infectious Bronchitis Virus, Jiroj Sasipreeyajan, Tawatchai Pohuang, Nida Sirikobkul
Efficacy Of Different Vaccination Programs Against Thai Qx-Like Infectious Bronchitis Virus, Jiroj Sasipreeyajan, Tawatchai Pohuang, Nida Sirikobkul
The Thai Journal of Veterinary Medicine
The present study was designed to evaluate the protection induced by different vaccination programs against Thai QX-like infectious bronchitis virus (IBV). The chickens were divided into 5 groups, 16 chickens in each. Groups 1-4 were vaccinated with different regimes of vaccination program against IBV. Groups 5 did not receive IBV vaccine and served as a positive control group. At 1 day old, the chickens in groups 2 and 3 were vaccinated with QX vaccine whereas the chickens in group 4 were vaccinated with H120 vaccine. At 14 days old, revaccination was performed in group 2 with QX vaccine whereas groups …