Potentiating effect of pidotimod on immune responses of chickens to live attenuated Newcastle disease vaccines

Pidotimod is a synthetic dipeptide with immunomodulatory activity, but the capacity of pidotimod as an immunologic adjuvant to improve vaccine immunogenicity remains unclear. This study evaluated the effectiveness of pidotimod on immune responses of chickens to Newcastle disease (ND) vaccine, and its efficiency to improve protection against highly virulent ND virus (NDV). A total of 300 one-day-old broilers were divided into five groups...