Evaluation of antibody response to Commercial Newcastle disease vaccines in Japanese quails

Newcastle is one of birds' most important viral diseases, and vaccination is one the most important ways to control it. This research aimed to evaluate the antibody response to Commercial Newcastle disease vaccines in Japanese quails. In this study, The 180 one-day-old Japanese quail were tested in a completely randomized design in five groups (with three replications). From day one to the end of the period, the rearing conditions were the same for all quails, and the only difference was in the Newcastle disease vaccination program. Vaccination in the studied groups was based on using:•    B1 and Clone ND Vaccine on day old (eye drop)•    injection of ND/AI + B1 or Clone ND vaccine (eye drop) on day eight•    using Vitapest (PHY.LMV.42 strain) vaccine (drinking water) in day15The control group did not receive any vaccine. Blood samples were taken on days 25 and 35 and evaluated by HI test. The results of statistical analysis by Tukey test showed that the mean titer of Newcastle antibody in the vaccinated groups was significantly different (p<0.05) from the control group. In addition, the study results showed that birds receiving (Clone, ND/AI + Clone, Vitapest) vaccines quickly responded to vaccination. The results of this research can be considered as a reference and a practical model in terms of serum antibody titer level against Newcastle disease for other quail flocks and emphasize the importance of vaccination in quail flocks.