饲料工业2026，Vol.47Issue(18)：10-19,10.DOI:10.13302/j.cnki.fi.2026.18.002
饲粮中添加翻白草提取物对肉鸡生长性能、养分表观代谢率和肉品质的影响
Effects of Dietary Supplementation with Potentilla discolor Bunge Extract on Growth Performance,Apparent Nutrient Metabolic Rate and Meat Quality in Broilers
摘要
Abstract
The experiment was conducted to investigate the effects of dietary supplementation with Poten-tilla discolor Bunge extract on growth performance,apparent metabolic rate,slaughter performance and meat quality of broilers.A total of 200 healthy 1-day-old Arbor Acres(AA)broilers were ran-domly divided into 5 groups:blank control(BL)group,antibiotic control(PC)group and treatment(PT1,PT2 and PT3)groups,with 8 replicates per group and 5 broilers per replicate.Broilers in the BL group were fed a basal diet,those in the PC group were fed the basal diet supplemented with 300 mg/kg chlortetracycline,and those in PT1,PT2 and PT3 groups were fed the basal diet supplemented with 0.9%,1.2%or 1.5%Potentilla discolor Bunge extract,respectively.The feeding trial lasted for 42 days.As a result,compared with the groups BL and PC,the PT1 group gained a significantly higher body weight at 21 and 42 days of age,and a significantly higher average daily gain(ADG)during 1-21 d,22-42 d and 1-42 d(P<0.05).Compared with the BL group,the feed-to-gain ratio(F/G)during 1-42 d significantly decreased in group PT1(P<0.05),average daily feed intake(ADFI)during 1-21 d markedly increased in PC,PT1,PT2 and PT3 groups(P<0.05),but the appar-ent metabolic rates of gross energy(GE),crude protein(CP)and crude ash(Ash)during 1-21 d,as well as the apparent metabolic rates of GE,CP,dry matter(DM)and calcium(Ca)during 21-42 d significantly decreased in PT3 group(P<0.05).Dietary supplementation with Potentilla discolor Bunge extract had no sig-nificant effects on slaughter rate,eviscerated rate,breast muscle rate and thigh muscle rate of broilers in the groups PT1,PT2 and PT3(P>0.05).Compared with the BL group,abdominal fat rate significantly reduced in PT1 and PT2 groups(P<0.05);thymus index and Fabricius bursa index were significantly improved in PT1 group(P<0.05),and the contents of Ca and total phosphorus(TP)in tibia significantly increased in all treatment groups(PT1,PT2 and PT3)(P<0.05);in the PT1 group,breast muscle water-holding capacity and shear force significantly decreased,while the values of pH at 24 h and redness(a*)of breast muscle signifi-cantly increased(P<0.05);CP contents in breast and thigh muscles significantly decreased(P<0.05),whereas intramuscular EE content in breast muscle significantly increased in the PT2 and PT3 groups(P<0.05).In conclusion,dietary supplementation with Potentilla discolor Bunge extract can increase ADG,reduce F/G,enhance immune organ indices and improve meat quality of broilers,and the optimal supple-mental level is 0.9%.关键词
翻白草提取物/AA肉鸡/生长性能/表观代谢率/免疫器官指数/屠宰性能/肉品质Key words
Potentilla discolor Bunge extract/AA broiler/growth performance/apparent metabolic rate/immune organ index/slaughter performance/meat quality分类
农业科技引用本文复制引用
李池敏,徐佳祥,邹曼,李玉春,吕忠达,蒋付梅,李昕諭,鲁琼芬..饲粮中添加翻白草提取物对肉鸡生长性能、养分表观代谢率和肉品质的影响[J].饲料工业,2026,47(18):10-19,10.基金项目
云南省农业联合专项-面上项目[202501BD070001-034] （）
云南农业大学动物科学技术学院大学生创新能力培养工程项目[A3012025077] （）
