This experiment was conducted to investigate the effects of dietary mangosteen and pigeonpea ex-tracts on growth performance,plasma biochemical indices,intestinal mucosal cytokine contents and cecal mi-croflora and meat quality of 818 chickens,to provide reference for their application in chickens.A total of 600 one-day-old 818 male chickens were randomly divided into control group,antibiotic group,mangosteen extract group and pigeonpea extract group according to the principle of consistent body weight with 6 replicates in each group and 25 chickens in each replicate.The chickens in the 4 groups were fed a basal diet and the basal diet supplemented with 500 mg/kg enramycin,30 mg/kg mangosteen extract and 300 mg/kg pigeonpea extract,respectively.The experimental period was 40 days.The results showed as follows,compared with the control group:1)the final body weight and average daily gain of chickens in antibiotic group and mangosteen extract group were significantly increased(P＜0.05).2)The contents of total protein(TP),triiodothyronine(T3)and thyroxine(T4)as well as total antioxidant capacity(T-AOC)in plasma in mangosteen extract group were significantly increased(P＜0.05),and the plasma T-AOC was significantly higher than that in antibiotic group(P＜0.05).Meanwhile,the contents of glucose(GLU),uric acid(UA)and malondialdehyde(MDA)in plasma in mangosteen extract group were significantly decreased(P＜0.05),and the plasma GLU content was significantly lower than that in antibiotic group(P＜0.05).The contents of triglyceride(TG)and total choles-terol(TC)in plasma in pigeonpea extract group were significantly decreased(P＜0.05),which were signifi-cantly lower than those in antibiotic group(P＜0.05).3)The contents of tumor necrosis factor-α(TNF-α)and interleukin-6(IL-6)in jejunal mucosa in mangosteen and pigeonpea extract groups were significantly de-creased(P＜0.05),and the IL-6 content in jejunal mucosa in mangosteen extract group was significantly lower than that in antibiotic group(P＜0.05).The interleukin-10(IL-10)content in jejunal mucosa in mangosteen extract group was significantly increased(P＜0.05),which was significantly higher than that in antibiotic group(P＜0.05).The Enterococcus relative abundance in cecum in pigeonpea extract group was significantly increased(P＜0.05),which was higher than that in antibiotic group(P＜0.05).4)The breast muscle color brightness(L*)value after slaughter for 45 min and 24 h and drip loss in mangosteen and pigeonpea extract groups were significantly decreased(P＜0.05),the breast muscle color redness(a')value was significantly increased(P＜0.05),and the a*value in breast muscle in mangosteen extract group was significantly higher than that in antibiotic group(P＜0.05).In conclusion,30 mg/kg mangosteen extract can improve growth per-formance,antioxidant capacity,intestinal immune function and relative abundance of beneficial microflora,improve meat color and reduce drip loss;300 mg/kg pigeonpea extract can reduce blood lipid content,im-prove intestinal immune function,improve meat color and reduce drip loss;30 mg/kg mangosteen extract can replace antibiotic added into the diet for 818 chickens from 1 to 40 days of age.[Chinese Journal of Animal Nutrition,2024,36(3):1599-1611]
维普
万方数据