major agricultural animals. The growth rate of commercial broiler chickens is several times
higher than its Red Jungle fowl (RJF) ancestor. To further improve the meat production of
commercial chickens, it is quite important to decipher the genetic mechanism of chicken
growth traits. In this study, we found that broiler chickens exhibited lower levels of E3
ubiquitin ligase muscle atrophy F-box (MAFbx or Atrogin-1) relative to its RJF ancestor. As a …