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研究笔记:花酸和花酶对的利用在肉的交互影响,养土豆蛋白质基础的基础饮食
1Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.
Poultry science
|April 16, 2025
概括
饮食中的花酸 (PP) 对肉的 (Ca) 和 (P) 使用有负面影响. 植物酶补充剂有效地改善了Ca和P的吸收,在PP的存在下,效果得到了增强.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 营养物质的新陈代谢
背景情况:
- 酸盐 (PP) 形成酸盐合物,可能会影响 (Ca) 的利用.
- 植物酶用于提高 (P) 的可用性,但它们对Ca利用的影响不太清楚.
- 了解PP,Ca和植物酶之间的相互作用对于优化肉饮食至关重要.
研究的目的:
- 调查酸盐 (PP) 和植物酶补充剂对肉中 (Ca) 和 (P) 用量的影响.
- 为了确定植物酶是否增强了Ca利用,而不仅仅是从植物酸盐中释放Ca.
- 评估植物酶在减轻PP对矿物质吸收的抗营养作用中的有效性.
主要方法:
- 一个1 + 2 × 2因数设计研究,涉及320只雄性肉从化后的第18日至21天.
- 实验性饮食以土豆蛋白缩为基础,含有不同水平的非植物酸 (非PP),PP和植物酶补充剂.
- 测量包括体重增加,料摄入量,料与料的比率,明显的皮质消化能力 (AID) 和Ca和P的明显全道保留 (ATTR).
主要成果:
- 酸 (PP) 显著降低了明显的乳腺消化能力 (AID) 和明显的全管保留 (ATTR) 的 (Ca) 和 (P).
- 植物酶补充剂在含有PP的饮食中改善了P的AID和ATTR,但在没有PP的饮食中没有改善,这表明了基质特异性相互作用.
- 添加的植物酶显著增加了Ca的ATTR,与含有PP的饮食相比,含有PP的饮食的数量更大,这表明除了植物酸盐分解之外还有其他机制.
结论:
- 饮食中的花酸 (PP) 会影响肉的 (Ca) 和 (P) 利用.
- 植物酶补充剂在改善P利用和减轻PP对Ca和P吸收的负面影响方面是有效的.
- 增强的Ca与植物酶的利用可能涉及超出直接释放Ca从植物酸盐分解的机制,突出显示肉营养中的复杂相互作用.
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