【摘要】 试验旨在研究不同水平葛藤对雪峰乌骨鸡生长性能、屠宰性能、免疫器官指数、血清生化指标和肉品质的影响。选取120只3周龄的雪峰乌骨鸡，随机分为4个处理组，对照组饲喂基础饲粮，试验组分别在基础饲粮中添加3%、5%和7%的葛藤，每组3个重复，每个重复10只鸡。预试期7 d，正试期60 d。结果表明：饲粮中添加葛藤对雪峰乌骨鸡的生长性能、屠宰性能、免疫器官指数及血清生化指标均无显著影响（P>0.05）；与对照组相比，葛藤显著提高了肌肉中苯丙氨酸、必需氨基酸和鲜味氨基酸含量（P<0.05），显著降低了肌肉中组氨酸含量（P<0.05），添加3%和5%葛藤显著提高了肌肉中赖氨酸的含量（P<0.05）；添加3%和7%葛藤显著提高了肌肉中苏氨酸和丙氨酸含量（P<0.05）。综上所述，葛藤可改善雪峰乌骨鸡胸肌中氨基酸组成，进而改善肉品质。在该试验条件下，葛藤在雪峰乌骨鸡饲粮中最佳添加量为3%～5%。更多还原

【Abstract】 This study investigated the effects of different levels of Pueraria lobata on the growth performance, carcass traits,immune organ index, serum biochemical indicators and meat quality of Xuefeng blackboned chickens. A total of 120 3-week-old Xuefeng black bone chickens were randomly divided into four treatment groups with three replicates containing 10 birds each: the control group received a basal diet; the treatment groups received a basal diet with 3%, 5% or 7% Pueraria lobata, respectively. Pretest period was 7 d and the feeding experiment lasted 60 d. The results indicated that Pueraria lobata had no significant effect on the growth performance, carcass traits, immune organ index, and serum biochemical indicators of Xuefeng black bone chickens(P>0.05). Compared to the control group, Pueraria lobata significantly increased the content of phenylalanine, essential amino acids, and umami amino acids in muscles, while reducing the content of histidine in muscles(P<0.05). Moreover, 3% and 5% Pueraria lobata significantly increased the content of lysine in muscles compared to the control group(P<0.05). Furthermore, the contents of Threonine and alanine in muscles were increased by Pueraria lobata addition(P<0.05). In summary, Pueraria lobata improved the amino acid composition in the pectoral muscles of Xuefeng black bone chickens, thereby enhancing meat quality. Under the conditions of this experiment, the optimal additive amount of Pueraria lobata in the diet of Xuefeng black bone chickens is 3%-5%.更多还原