浙江农业学报 ›› 2023, Vol. 35 ›› Issue (2): 275-284.DOI: 10.3969/j.issn.1004-1524.2023.02.04

• 动物科学 • 上一篇    下一篇

饲粮添加复合益生菌对产蛋后期蛋鸡生产性能、肠道抗氧化能力和肠道氨氮含量的影响

陈欣1(), 慈文佳1, 李浙烽2, 蔡平梨3, 朱建津1,*()   

  1. 1.江南大学 食品学院,江苏 无锡 214122
    2.杭州康德权饲料有限公司,浙江 杭州 311107
    3.徐州市铜山区家禽技术指导站,江苏 徐州 221100
  • 收稿日期:2021-11-19 出版日期:2023-02-25 发布日期:2023-03-14
  • 通讯作者: 朱建津
  • 作者简介:*朱建津,E-mail: 13706191551@163.com
    陈欣(1996—),男,四川宜宾人,硕士研究生,研究方向为营养与功能因子。E-mail:xin092695@163.com
  • 基金资助:
    国家自然科学基金(31901679);江苏省自然科学基金(20190594)

Effects of dietary supplementation with compound probiotics on production performance, intestinal antioxidant capacity and intestinal ammonia nitrogen levels in late-phase laying hens

CHEN Xin1(), CI Wenjia1, LI Zhefeng2, CAI Pingli3, ZHU Jianjin1,*()   

  1. 1. School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
    2. Hangzhou King Technology Feed Co., Ltd., Hangzhou 311107, China
    3. Poultry Technical Guidance Station, Tongshan District, Xuzhou, Xuzhou 221100, Jiangsu, China
  • Received:2021-11-19 Online:2023-02-25 Published:2023-03-14
  • Contact: ZHU Jianjin

摘要:

为研究饲粮添加嗜酸乳杆菌和枯草芽孢杆菌复合制剂对产蛋后期生产性能和肠道健康的影响,选取2 160只50周龄的海兰褐蛋鸡随机分为3组,分别饲喂基础日粮(NC组)以及添加250 mg·kg-1(LD组)或500 mg·kg-1(HD组)嗜酸乳杆菌和枯草芽孢杆菌复合制剂的日粮。结果表明:与NC组相比,LD和HD组蛋鸡产蛋率在49 d时分别提高了2.62%和2.20%,HD组蛋鸡平均日采食量(ADFI)显著降低(P<0.05)。与NC组相比,LD组的回肠组织中过氧化氢酶(CAT)活性、谷胱甘肽过氧化物酶(GSH-Px)活性和盲肠总抗氧化能力(T-AOC)显著升高(P<0.05);HD组中盲肠和回肠的T-AOC、GSH-Px活性,CAT活性以及盲肠组织中超氧化物歧化酶(SOD)活性显著增加(P<0.05)。LD组盲肠内容物中乙酸、正戊酸和异戊酸含量显著上升(P<0.05),HD组中乙酸、丙酸和正丁酸含量显著升高(P<0.05);HD组盲肠内容物中氨氮、尿素含量和尿酸酶相对活性显著降低(P<0.05),尿酸水平升高(P<0.05)。盲肠微生物和氨代谢物相关性分析表明,拟杆菌、梭菌、瘤胃球菌等微生物与氨代谢产物呈显著相关性。综上所述,饲粮添加嗜酸乳杆菌和枯草芽孢杆菌复合制剂可以提高肠道抗氧化能力,增加盲肠内容物中短链脂肪酸水平,减少肠道内容物中氨氮含量,从而提高产蛋后期蛋鸡的生产性能。本研究有助于阐明益生菌复合制剂对产蛋后期蛋鸡生产性能的影响,为提高蛋鸡生产性能提供潜在的干预手段。

关键词: 益生菌, 产蛋后期蛋鸡, 生产性能, 肠道健康

Abstract:

This study was aimed to investigate the effects of of dietary supplementation of Lactobacillus acidophilus and Bacillus subtilis on the performance and intestinal health of late-phase laying hens. A total of 2 160 Hy-Line brown hens (50-weeks-old) were randomly divided into three groups, the control group (NC group) was fed the basal diet and the experimental group was supplemented with 250 mg·kg-1 (LD group) and 500 mg·kg-1 (HD group) Lactobacillus acidophilus and Bacillus subtilis complexes on the basal diet. The results showed that compared with the NC group, the egg production rate increased by 2.62% and 2.20% in the LD and HD groups respectively and the average daily feed intake (ADFI) was significantly lower in the HD group (P<0.05) at the 49 d. Compared with the NC group, the activity of catalase (CAT) and glutathione peroxidase (GSH-Px) and total antioxidant capacity (T-AOC) in ileal tissue in the LD group were significantly higher than those in the NC group. Similarly, T-AOC, GSH-Px, CAT and SOD activities in cecum and ileum tissues were significantly increased (P<0.05) in the HD group. Significantly higher levels of acetic acid, n-valeric acid and isovaleric acid in cecum contents in the LD group (P<0.05), and significantly higher levels of acetic acid, propionic acid and n-butyric acid in the HD group (P<0.05) compared with the NC group. Ammonia nitrogen, urea content and relative activity of urease in the cecum contents were significantly lower (P<0.05) compared with the NC group. However, the levels of uric acid were higher (P<0.05) in the HD group compared with the NC group. The correlation between microbiome and ammonia metabolites showed that the relative abundance (Bacteroides, Clostridium, Ruminococcus, etc.) were significantly correlated with ammonia metabolites. In conclusion, dietary supplementation of Lactobacillus acidophilus and Bacillus subtilis can improve the antioxidant capacity of the intestine, increase the level of short-chain fatty acids in the intestinal contents and reduce the ammonia content in the intestinal contents for improving the performance of laying hens in the late egg-laying period.

Key words: probiotics, laying hen, production performance, gut health

中图分类号: