中国畜牧兽医 ›› 2025, Vol. 52 ›› Issue (1): 169-181.doi: 10.16431/j.cnki.1671-7236.2025.01.015

• 营养与饲料 • 上一篇    

发酵桑叶粉对黄羽肉鸡生长性能、抗氧化和免疫能力及肠道菌群结构的影响

邢东旭1, 符兵1, 王君雁2, 李庆荣1, 周东来1, 叶金玲2, 廖森泰1, 阮栋2, 邹宇晓1   

  1. 1. 广东省农业科学院蚕业与农产品加工研究所, 农业农村部功能食品重点实验室, 广东省农产品加工重点实验室, 广州 510610;
    2. 广东省农业科学院动物科学研究所, 畜禽育种国家重点实验室, 农业农村部华南动物营养与饲料重点试验室, 广东省畜禽育种与营养研究重点试验室, 广州 510640
  • 收稿日期:2024-06-21 发布日期:2024-12-30
  • 通讯作者: 阮栋, 邹宇晓 E-mail:donruan@126.com;zouyuxiao@gdaas.cn
  • 作者简介:邢东旭,E-mail:dongxuxing@126.com。
  • 基金资助:
    广东省农业科学院协同创新中心建设运行经费(XTXM202205、XT202304);广东省农业科研类及技术推广示范类项目(2022-03);广东省科技计划项目(2023A0505050104);广东省重点领域研发计划项目(2020B0202090004);广东省农业科学院农业优势产业学科团队建设项目(202119TD)

Effects of Dietary Fermented Mulberry Leaf Powder on Growth Performance, Antioxidant and Immune Capacity,and Gut Microbiota Structure of Yellow-feathered Broilers

XING Dongxu1, FU Bing1, WANG Junyan2, LI Qingrong1, ZHOU Donglai1, YE Jinling2, LIAO Sentai1, RUAN Dong2, ZOU Yuxiao1   

  1. 1. Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China;
    2. Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock 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 510640, China
  • Received:2024-06-21 Published:2024-12-30

摘要: 【目的】 试验旨在研究饲料中添加发酵桑叶粉(FML)对黄羽肉鸡生长性能、抗氧化和免疫能力及肠道菌群结构的影响。【方法】 选取初始体重为(40.07±0.05) g的1日龄黄羽肉鸡540只,随机分为3组,每组6个重复,每个重复30只鸡。在育雏期、生长期和育成期分别投喂添加0(对照组)、4.5% FMLP(FML45组)和9.0% FMLP(FML90组)的3种等氮等能试验饲料,试验期为50 d。于21、42和50日龄以重复为单位对试验鸡空腹称重并统计采食量,计算生长性能;于50日龄每重复选取3只接近平均体重的试验鸡采血和屠宰,测定血清抗氧化指标;取回肠黏膜评价抗氧化和免疫功能,取回肠内容物测定肠道菌群结构。【结果】 与对照组相比,①FML90组试验鸡体重(BW)和平均日增重(ADG)均显著降低(P<0.05),料重比(F/G)显著升高(P<0.05),平均日采食量(ADFI)呈升高趋势(P=0.084),各组间死亡率无显著差异(P>0.05)。②FML45和FML90组试验鸡血清中超氧化物歧化酶(SOD)活性显著升高(P<0.05),各组间血清中丙二醛(MDA)含量、谷胱甘肽过氧化物酶(GSH-Px)活性和总抗氧化能力(T-AOC)无显著差异(P>0.05);FML45组试验鸡回肠T-AOC显著高于对照组和FML90组,各组间回肠中MDA含量、GSH-Px和SOD活性无显著差异(P>0.05)。③FML90组试验鸡回肠中分泌型免疫球蛋白A(SIgA)含量显著增加(P<0.05),各组间白介素1β(IL-1β)、IL-10、肿瘤坏死因子α(TNF-α)、转化生长因子β(TGF-β)和补体3(C3)含量均无显著差异(P>0.05)。④各组间回肠菌群在门水平相对丰度无显著差异(P>0.05);FML45和FML90组回肠普拉梭菌(Faecalibacterium)相对丰度显著升高(P<0.05),真细菌未分类属(unclassified_o_Eubacteriales)和颤螺菌未分类属(unclassified_o_Oscillospiraceae)相对丰度显著降低(P<0.05),考拉杆菌属(Phascolarctobacterium)相对丰度呈升高趋势(P=0.067);Ace指数和Chao1指数显著降低(P<0.05)。【结论】 饲粮中添加发酵桑叶粉能增强肉鸡的免疫和抗氧化能力,提高肠道有益菌群的相对丰度,但过量添加会降低其生长性能,建议黄羽肉鸡饲粮中发酵桑叶粉的添加量为4.5%。

关键词: 发酵桑叶粉; 黄羽肉鸡; 生长性能; 抗氧化能力; 肠道免疫; 肠道菌群

Abstract: 【Objective】 This study was conducted to investigate the effect of fermented mulberry leaf powder (FML) on growth performance,antioxidant and immune capacity,and gut microbiota structure of Yellow-feathered broilers. 【Method】 540 1-day-old Yellow-feathered broilers with an initial weight of (40.07±0.05) g were selected and randomly divided into 3 groups,each with 6 replicates and 30 broilers per replicate.Three types of equal nitrogen and equal energy experimental feed were fed with 0(control group),4.5% FML(group FML45),and 9.0% FML(group FML90) during the brooding,growth,and adult stages,respectively.The experimental period was 50 days.At 21,42 and 50 days of age,the broilers were weighed with fasting and feed intake was analyzed to calculate growth performance.At 50 days of age,3 broilers with average body weight from each replicate were selected for blood collection and slaughter,and serum antioxidant indicators were determined.The ileal mucosa was taken to determine antioxidant and immune functions,and the ileal content was taken to determine the gut microbiota structure. 【Result】 Compared with control group,① The broilers in group FML90 showed a significant decrease in body weight(BW) and average daily gain (ADG)(P<0.05),as well as a significant increase in feed to weight ratio (F/G)(P<0.05),and an increasing trend in average daily feed intake (ADFI)(P=0.084).There was no significant difference in mortality among groups(P>0.05).② The activity of superoxide dismutase(SOD) in serum of broilers in groups FML45 and FML90 was significantly increased (P<0.05),and there were no significant differences in the content of malondialdehyde(MDA) and the activities of glutathione peroxidase(GSH-Px) and total antioxidant capacity(T-AOC) among groups (P>0.05). T-AOC in ileum of broilers in group FML45 was significantly higher than that in control group and group FML90.There were no significant differences in the contents of MDA,the activities of GSH-Px and SOD in ileum among groups (P>0.05).③ The broilers in group FML90 showed a significant increase in the content of secreted immunoglobulin A(SIgA) (P<0.05),and there were no significant differences in the contents of interleukin-1β (IL-1β),IL-10,tumor necrosis factor α (TNF-α),transforming growth factor β (TGF-β) and complement 3 (C3) among groups (P>0.05).④ There was no significant differences in the relative abundance at phylum level in ileum among groups (P>0.05).The relative abundance of Faecalibacterium were significantly increased (P<0.05),while the relative abundances of unclassified_o_Eubacteriales and unclassified_o_Oscillospiraceae were significantly decreased (P<0.05),the relative abundance of Phascolarctobacterium showed an increasing trend (P=0.067),and the Ace index and Chao1 index were significantly decreased (P<0.05) in groups FML45 and FML90. 【Conclusion】 Diets supplemented with FML could enhance the immunity and antioxidant capacity,improve the relative abundance of beneficial bacteria in intestine,but excessive addition could reduce the growth performance of broilers.It was recommended to add 4.5% FML to the diet for broilers.

Key words: fermented mulberry leaf powder; Yellow-feathered broilers; growth performance; antioxidant capacity; intestinal immunity; gut microbiota

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