富含的乳酸菌和富含的酵母对产卵的性能,富含的卵子,抗氧化能力和产母的乳腺微生物群的比较效果
Jianmin Zhou1, Uchechukwu Edna Obianwuna1, Longfei Zhang1,2
1Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Institute of Feed Research, China Academy of Agricultural Sciences, Beijing, 100081, People's Republic of China.
Journal of animal science and biotechnology
|February 19, 2025
概括
富含的乳酸菌 (SeL) 的性能与家禽中富含的酵母 (SeY) 的性能相当,提高了蛋质量和肠道健康. 然而,高的SeL水平可能会对代谢功能产生负面影响.
科学领域:
- 禽类的营养 养
- 动物科学动物科学
- 微生物学 微生物学
背景情况:
- 有机 (Se) 是一个重要的家禽料添加剂,由于其生物可用性和低毒性,对于生产和组织沉积至关重要.
- 建立了富含的酵母 (SeY),而富含的乳酸菌 (SeL) 提供益生菌的好处.
- 这项研究比较了SeY和SeL对产蛋质量,抗氧化状态,Se沉积和肠道健康的影响.
研究的目的:
- 评估丰富酵母 (SeY) 和丰富乳酸菌 (SeL) 作为产母的料添加剂的有效性.
- 评估它们对蛋质量,抗氧化能力,沉积和肠道健康的影响.
- 确定SEL对表现和生理参数的剂量依赖影响.
主要方法:
- 450只Hy-Line Brown产母在两周内被食Se缺乏的饮食,然后被分配到五组:Se缺乏,SeY (1.5毫克Se/kg) 或SeL (1.5,3.0,6.0毫克Se/kg) 在12周内.
- 评估的料与蛋的比率,豪格单位,蛋黄的颜色,蛋中的Se含量,血清抗氧化酶,肝功能标志物,乳腺形态,基因表达和乳腺微生物群.
- 在阴茎和肝脏中测量了反应性氧物种 (ROS).
主要成果:
- SeY和低剂量的SeL (1.5毫克Se/公斤) 改善了料与蛋的比率和豪斯单位,SeY和SeL也增强了蛋黄的颜色.
- 所有补充Se的饮食都增加了蛋中的Se沉积;SeL显示了剂量依赖的效果.
- 补充Se改善了抗氧化剂状态并降低了ROS,但高SeL (6.0 mgSe/kg) 负面影响了肝功能和结构. SeL15改善了阴道的高度与密室深度比率和有益的肠道细菌.
- SeY15和SeL15调节了与肝脏中的Se代谢相关的特定基因表达.
结论:
- 富含的乳酸菌 (SeL) 提供有机的抗氧化特性和益生菌的肠道健康优势的双重好处,实现与SeY.相比的性能.
- 虽然SeL增强了Se沉积,但高含量 (6.0毫克Se/kg) 可能会损害产母的生产力和代谢健康.
- 1.5 mg Se/kg的SeL显示有望改善产母的肠道健康和蛋质量.
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