海红酵母补充剂通过调节老化的小肠静态来改善产卵性能
Yudian Zhao1,2, Sujin Si1,2, Yangguang Ren1,2
1College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China.
Animal nutrition (Zhongguo xu mu shou yi xue hui)
|September 12, 2024
概括
海红酵母 (MRY) 补充剂通过增强肠道健康改善了产母的性能和蛋质量. 这种功能性益生菌恢复了肠道平衡,增强了抗氧化能力,并积极调节了老的肠道微生物群.
科学领域:
- 动物科学动物科学
- 营养科学 营养科学
- 微生物学 微生物学
背景情况:
- 与年龄相关的肠道平衡的下降影响着产卵母的表现.
- 海红酵母 (MRY) 具有抗氧化和免疫调节的特性.
- 像MRY这样的功能益生菌可以减轻家禽与年龄相关的问题.
研究的目的:
- 评估MRY补充剂对老母肠道健康,产卵性能和蛋质量的影响.
- 调查MRY摄入量与肠道平衡指标之间的相关性.
主要方法:
- 900只老年Hy-Line棕色被养12周的饮食补充了0-2%的MRY.
- 评估的产卵性能 (产卵量,重量,料摄入量,转化率).
- 评估肠道健康状况 (状体形态,抗氧化剂指标,炎症因素,紧结蛋白,亡,自).
- 分析了肠道微生物群的组成 (SCFA,细菌丰富度,LEfSe).
主要成果:
- 补充MRY显著改善了蛋生产率,平均蛋重量和蛋质量,同时降低了料转换率和每日料摄入量.
- MRY增强了抗氧化剂状态 (SOD,CAT,GSH-Px),肠高度,以及高度与密室深度的比例.
- 通过MRY调节的炎症因子 (TGF-β,IL-1β,IL-8,TNF-α),血清IgG增加,紧结蛋白 (occludin,ZO-1) 升调,以及受影响的亡/自标志物 (Bcl-2,beclin-1,LC3I).
- MRY增加了小肠短链脂肪酸,改变了肠道微生物群的组成,丰富了诸如 Bacteroidetes, Bacteroides, Sutterella 和 Akkermansia muciniphila 这样的有益细菌.
结论:
- 海红酵母补充剂有效地提高了老产母的生产性能和蛋质量.
- MRY有助于恢复和平衡肠道平衡,表明其作为绿色料添加剂的潜力.
- 这些发现支持MRY的应用,以提高的健康和生产力.
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