Research Progress of Behavioral Factors Inducing Carcass Defects in Yellow-feathered Broilers
Zoonotic diseases have attracted great attentions from relevant social and national depart-ments.Of which,the outbreak of Covid-2019 has further prompted the increasing control over live poultry markets across the country,thereby pushing forward the transition of yellow-feather broilers from live poultry to chilled listing,which has become a major trend.Accordingly,it is increasingly demanding for the carcass integrity rate and aesthetics of yellow-feather broilers after slaughtering,and how to reduce carcass damages of yellow-feather broilers will be a topic afterward.The factors that induce carcass defects after slaughter in yellow-feather broilers are similar to those in white-feathered broilers.However,the alertness and wildness of yellow-feather broilers make them different from white-feather broilers.Fight-ing,feather pecking or stepping on others can cause carcass defects,which is closely related to social be-haviors such as animal fear,anxiety and aggressiveness.Therefore,this paper reviews the research pro-gress on possible factors such as social fear,social competition and stress that induce carcass defects in yellow-feather broilers,and speculates that environmental abundance may be a feasible improvement meas-ure.It provides theoretical basis for promoting the transition of yellow-feather broilers from live poultry to chilled listing.
yellow-feather broilerstransition to chilled listingcarcass defectssocial behavior
万方数据
维普
