Effects of different feeding methods on growth performance and blood biochemical indicators of Black-boned chickens
Li Shixin
Shao Shujuan
Li Jie
Zhu Tong
Liu Caiyan
He Qin
Li Jin
Abstract：To investigate the effects of different rearing methods on the growth performance and blood biochemical indicators of Black-boned chickens,the experiment selected 240 healthy White-feathered Black-boned chickens at 10 weeks of age with similar body weight and divided them randomly into two groups:Free-range in the orchard and caged rearing.Each group had three replicates,with 40 chickens per replicate,for a period of 10 weeks.The results showed that the final weight of the free-range chickens in the orchard was significantly lower than that of the caged group(P＜0.05),and their average daily weight gain were lower than the caged group(P＞0.05).The content of total protein(TP)and the activity of amylase(AMY)in the blood of the free-range chickens were significantly higher than those in the caged group(P＜0.05),while the content of globulin(GLB),blood urea nitrogen(BUN),glucose(GLU),and the activity of aspartate aminotransferase(AST)were higher in the free-range group than in the caged group(P＞0.05).The content of triglycerides(TG)was significantly lower in the free-range group than in the caged group(P＜0.05),and the content of albumin(ALB),total bilirubin(TBIL),and the activity of alanine aminotransferase(ALT)and creatine kinase(CK)were lower in the free-range group than in the caged group(P＞0.05).The results indicate that compared with caged rearing,free-range in the orchard is not conducive to the weight gain of Black-boned chickens,but it has a certain improving effect on the health status of the Black-boned chickens.
Keywords：Black-boned chickenFeeding methodGrowth performanceBlood physiology indicators
Publication Date：2024-09-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 42-45 )