中国农业科学 ›› 2026, Vol. 59 ›› Issue (5): 1111-1127.doi: 10.3864/j.issn.0578-1752.2026.05.015

• 畜牧·兽医 • 上一篇    下一篇

米老排叶片饲喂水平对黄羽肉鸡生长性能、免疫功能、抗氧化能力、胴体品质和肉品质的影响

王少华1(), 范秋丽2(), 杨锦昌1, 孙煜杰1, 余纽1(), 蒋守群2()   

  1. 1 中国林业科学研究院热带林业研究所,广州 510520
    2 广东省农业科学院动物科学研究所/猪禽种业全国重点实验室/农业农村部华南动物营养与饲料重点实验室/广东省畜禽育种与营养研究重点实验室,广州 510642
  • 收稿日期:2025-05-09 接受日期:2026-01-20 出版日期:2026-03-01 发布日期:2026-03-06
  • 通信作者:
    余纽,E-mail:
    蒋守群,E-mail:
  • 联系方式: 王少华,E-mail:302723587@qq.com。范秋丽,E-mail:649698130@qq.com。王少华与范秋丽为同等贡献作者。
  • 基金资助:
    广东省基础与应用基础研究基金项目(2025A1515012037); 现代农业产业技术体系国家肉鸡产业技术体系(CARS-41)

Effects of Different Levels of Mytilaria laosensis Leaves Feeding on Growth Performance, Immune Function, Antioxidant Capacity, Carcass Quality and Meat Quality of Yellow-Feathered Chickens

WANG ShaoHua1(), FAN QiuLi2(), YANG JinChang1, SUN YuJie1, YU Niu1(), JIANG ShouQun2()   

  1. 1 Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520
    2 Institute of Animal Science, Guangdong Academy of Agricultural Sciences/State Key Laboratory of Swine and Poultry Breeding/Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510642
  • Received:2025-05-09 Accepted:2026-01-20 Published:2026-03-01 Online:2026-03-06

摘要:

【目的】 研究黄羽肉鸡饲喂不同水平的米老排叶片对生长性能、血浆生化指标、空肠黏膜细胞因子含量、肝脏解毒和抗氧化指标、胴体品质和肉品质的影响,以此评价米老排叶片作为一种潜在饲料原料在黄羽肉鸡上的应用价值。【方法】 试验选取720只6日龄体重相似的快速型麻黄肉鸡,采用完全随机设计,共分为6个处理组,米老排叶片饲喂水平分别为0(对照组)、1.5%、3.0%、4.5%、6.0%和7.5%,每组设置6个重复,每个重复20只(公和母各10只),试验期50 d。【结果】 随米老排叶片饲喂水平的升高,1)6—21日龄,肉鸡体重、平均日增重和欧益指数均呈二次曲线升高(P<0.05),料重比和增重成本呈二次曲线降低(P<0.05),22—42日龄,肉鸡料重比和增重成本均呈线性和二次曲线降低(P<0.05),43—55日龄,肉鸡体重、平均日采食量、料重比和增重成本均呈线性和二次曲线升高(P<0.05),欧益指数呈线性和二次曲线降低(P<0.05)。6—55日龄,肉鸡平均日增重、料重比和增重成本均呈线性和二次曲线升高、欧益指数呈线性和二次曲线降低(P<0.05)。2)21日龄,血浆TP、IgA、IgG含量和NDV-Ab抗体滴度呈线性升高(P<0.05),ALT和CK活性以及MDA含量呈线性和二次曲线降低(P<0.05),55日龄,与对照组相比,4.5%叶片组TP含量显著升高(P<0.05),1.5%叶片组TG含量显著降低(P<0.05)。3)米老排叶片饲喂对肉鸡各项器官指数均无显著影响(P>0.05)。4)空肠黏膜sIgA、TNF-α、IFN-γ和IL-10含量均呈线性和二次曲线升高(P<0.05),空肠黏膜IL-1β含量无显著差异(P>0.05)。5)肝脏CarE活性呈线性和二次曲线升高(P<0.05),AchE活性和MDA含量呈线性和二次曲线降低(P<0.05),肝脏GSH-ST、T-AOC和T-SOD活性无显著差异(P>0.05)。6)肉鸡半净膛率呈线性和二次曲线降低(P<0.05),胸肌率呈线性和二次曲线升高(P<0.05),腹脂率呈线性降低(P<0.05)。7)与对照组相比,4.5%叶片组肉鸡屠宰后45 min和24 h胸肌肉色红度a*值均显著升高(P<0.05)。【结论】 适宜水平米老排叶片对黄羽肉鸡生长性能、免疫功能、抗氧化和解毒能力、胴体品质和肉品质均有改善作用,但米老排叶片饲喂量还需要进行精准把控,过高饲喂量可能会对经济收益产生负面影响。依据二次曲线回归模型,结合体重、平均日增重和料重比作为主要评价指标,估测6—55日龄快速型黄羽肉鸡饲粮米老排叶片适宜饲喂水平为2.75%—2.90%。此次试验为米老排叶片作为黄羽肉鸡养殖非常规饲料原料提供了科学依据和试验参考。

关键词: 米老排, 黄羽肉鸡, 生长性能, 血浆生化指标, 肠道健康, 胴体品质, 肉品质

Abstract:

【Objective】 The aim of this experiment was to study the effects of different levels of Mytilaria laosensis leaves feeding on the growth performance, plasma biochemical indicators, jejunal mucosal cytokine content, hepatic detoxification and antioxidant indicators, carcass quality and meat quality of Yellow-feathered chickens. This study serves to evaluate the application value of Mytilaria laosensis leaves as a potential forest by-product feed ingredient for yellow-feathered chickens.【Method】 A total of 720 six-day-old fast-growing mahuang Yellow-feathered chickens with similar body weights were selected and randomly assigned to 6 treatment groups using a completely randomized design. The feeding levels of Mytilaria laosensis leaves were 0% (control group), 1.5%, 3.0%, 4.5%, 6.0% and 7.5%, and each group was set up with 6 replicates, with 20 chickens in each replicate (10 males and 10 females each), and the test period was 50 days. 【Result】 with the feeding levels of Mytilaria laosensis leaves increased, 1) During the period of 6 to 21 days of age, body weight, average daily gain, and eurobenefit index were increased quadratically (P<0.05), while feed conversion ratio and cost per kilogram gain decreased quadratically (P<0.05). From 22 to 42 days of age, both feed to gain ratio and weight gain cost were decreased linearly and quadratically (P<0.05). In the final phase of 43 to 55 days of age, body weight, average daily feed intake, feed to gain ratio, and weight gain cost were increased both linearly and quadratically (P<0.05), whereas the eurobenefit index was decreased in both linear and quadratic patterns (P<0.05). During the experiment of 6 to 55 days of age, the body weight, average daily gain, feed to gain ratio and weight gain cost of chickens were increased linearly and quadratically, while the eurobenefit index was decreased linearly and quadratically (P<0.05). 2) At 21 days of age, the plasma concents of TP, IgA, IgG, and the antibody titer against NDV-Ab were increased linearly (P<0.05). In contrast, the activities of ALT and CK, as well as the concentration of MDA were decreased both linearly and quadratically (P<0.05). At 55 days of age, compared with the control group, the TP concent was significantly higher in the 4.5% leaf group (P<0.05), while the TG concent was significantly lower in the 1.5% leaf group (P<0.05). 3) The feeding level of Mytilaria laosensis leaves had no significant influence on the organ indexes of chickens. 4) The contents of sIgA, TNF-α, IFN-γ, and IL-10 in jejunal mucosa were increased linearly and quadratically (P<0.05). No significant difference was observed in the concent of IL-1β in the jejunal mucosa (P>0.05). 5)The activity of CarE in liver was increased linearly and quadratically (P<0.05), while the activities of AchE and MDA content were decreased linearly and quadratically (P<0.05). No significant differences were observed in the activities of hepatic GSH-ST, T-AOC, and T-SOD (P>0.05). 6) The half-eviscerated rate of chickens was decreased linearly and quadratically (P<0.05), and the breast muscle rate was increased linearly and quadratically (P<0.05), and the abdominal fat rate was decreased linearly (P<0.05). 7) Compared with the control group, chickens in the 4.5% leaf group were demonstrated significantly higher redness (a*) values in the breast muscle at both 45 min and 24 h post-slaughter (P<0.05).【Conclusion】 In summary, the suitable of Mytilaria laosensis leaves can improve the growth performance, immune function, antioxidant and detoxification capacity, carcass quality and meat quality of yellow-feathered chickens. However, the feeding level of Mytilaria laosensis leaves requires precise control, as excessively high levels may adversely affect economic returns. According to quadratic regression model, combined with the body weight, average daily gain and feed to gain ratio as the main evaluation indicators, it is estimated that the appropriate feeding level of Mytilaria laosensis leaves for 6 to 55 days of age of fast-growing Yellow-feathered chickens is 2.75% to 2.90%. This study provided a scientific basis and experimental reference for the use of Mytilaria laosensis leaves as an unconventional feed ingredient in the rearing of yellow-feathered chickens.

Key words: Mytilaria laosensis, yellow-feathered chickens, growth performance, serum biochemical indicators, intestinal health, carcass quality, meat quality