Effects of Newcastle Disease/Infectious Bronchitis Vaccine and Feeding Yeast Products on the Innate Immune System in the Proventriculus and Ileum of Broiler Chicks.

ABSTRACT: The aim of this study was to determine whether Newcastle disease/infectious bronchitis (ND/IB) vaccination and yeast product diet supplementation modulate the expression of innate immune molecules in the proventriculus and ileum of broiler chicks. One-day-old male broiler chicks were divided into four groups (V-Y- (control), V-Y+, V+Y-, and V+Y+ groups, where V and Y represent vaccination and yeast product supplementation, respectively). Chicks in the V+Y- and V+Y+ groups were immunized with the live ND/IB vaccine, whereas chicks in the V-Y- and V-Y+ groups were not. Chicks in the V-Y+ and V+Y+ groups received feed containing yeast products from day 4, whereas chicks in the V-Y- and V+Y- groups did not. The proventriculus and ileum were collected on day 7 to analyze the expression of seven

SUBMITTER: Yoshimura Y 

PROVIDER: S-EPMC9884637 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature