Publications by authors named "N Chansiripornchai"
Background And Aim: The high prevalence of QX-like variant among Thai isolates poses a significant threat to poultry production. In this study, we evaluated the protective efficacy of commercially available heterologous infectious bronchitis virus (IBV) vaccines against the local Thai QX-like strain in specific-pathogen-free (SPF) chicks from Thailand.
Materials And Methods: The experiment involved 100 SPF chicks divided into 4 arms.
High prevalence in chickens; more prevalent than .Susceptibility to macrolides but resistance to quinolones/tetracyclines in isolates.Homogeneous resistance patterns within farms; higher in broilers than in native birds.
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- - The study evaluates the safety and immune response of two types of commercially available vaccines for Infectious Bursal Disease (IBD) in broiler chickens, focusing on their impact on protection against Newcastle disease (ND).
- - Two groups of vaccinated broilers received different IBD vaccines, while a control group was left unvaccinated; blood samples were taken over a month to assess the immune response and any potential suppression caused by the vaccines.
- - Results indicated that the V217 strain vaccine led to a stronger antibody response against ND compared to the M.B. strain and caused fewer bursal lesions, suggesting it may be a better option for ensuring immunity in poultry.
In the Mekong Delta of Vietnam, farmers use large quantities of antimicrobials to raise small-scale chicken flocks, often including active ingredients regarded of "critical importance'" by the World Health Organization. Due to limitations in laboratory capacity, the choice of antimicrobials normally does not follow any empirical criteria of effectiveness. The aim of this study was to highlight non-critically important antimicrobials against which chicken pathogens are likely to be susceptible as a basis for treatment guidelines.
View Article and Find Full Text PDFA comparison of virulence genes, antimicrobial resistance profiles and genetic diversity of avian pathogenic (APEC) isolates from broilers and broiler breeders in Thailand and Australia.
Avian Pathol
October 2020
Avian pathogenic (APEC) is the causative agent of colibacillosis resulting in economic losses in the poultry industry worldwide. A total of 168 APEC isolates, equal numbers from Australian and Thai broilers/broiler breeders, were identified and tested for their susceptibility to ten antimicrobial agents. Most of the Thai APEC isolates were multidrug-resistant (MDR) (60.
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