lysine 限制,维生素强化和不溶性纤维对被养为减少原蛋白饮食的 brojlers 的肠道形态学的交互作用
Ahmad Salahi1, M H Shahir2, Iraj Jafari Anarkooli3
1Department of Animal Science, Faculty of Agriculture, University of Zanjan, Iran.
Veterinary and animal science
|February 9, 2026
概括
在 brojiler饮食中减少的原始蛋白质 (CP) 和 lysine 对形形态有负面影响. 然而,与维生素和不溶性纤维的协同补充有效地支持 brojlers的肠道粘膜完整性.
科学领域:
- 动物营养 动物营养
- 鸟类生理学 鸟类生理学
- 胃肠道形态 胃肠道形态
背景情况:
- 饮食中的蛋白质和氨基酸水平对于肉的最佳表现和肠道健康至关重要.
- 减少原蛋白 (CP) 的饮食越来越多地用于最大限度地减少分泌和环境影响.
- 了解营养素修改对肠道结构的影响对于保持鸟类健康和生产力至关重要.
研究的目的:
- 为了研究可消化的氨酸降低到CP比率,维生素补充剂和不溶性纤维对肉的头形态学的影响.
- 评估这些饮食因素与肠道发育之间的相互作用.
- 将基于AI的图像分析与微观结构评估的传统方法进行比较.
主要方法:
- 一个2 × 2 × 2 + 1的因数试验,涉及756只雄性罗斯308肉从第10天到第40天.
- 鸟类被养的饮食减少了CP (12%低于对照) 和可消化的lysine:CP比率 (6.2比5.7%),维生素水平 (标准比增强) 和不溶性纤维 (0比0.5%Arbocel®).
- 使用基于AI的ImageJ分析评估了Jejunal形态,并量化了杯细胞参数.
主要成果:
- 减少CP显著减少了上皮质的长度,的高度,的表面积和壁的厚度.
- 不溶性纤维显著增加了的表面积.
- 维生素强化和纤维补充,特别是在组合中,积极调节上皮质和杯状细胞参数,抵消CP降低的一些负面影响.
结论:
- 虽然CP和氨酸的减少对膜微观结构产生了负面影响,但与维生素和不溶性纤维的协同补充有效地支持了粘膜完整性.
- 这些发现凸显了特定营养策略在养减少蛋白质饮食的肉中维持肠道健康方面的补偿作用.
- 基于AI的图像分析在评估肠道微结构参数方面表现出优越性,与Cell^A相比.
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