确定Microtech植物酶的可用和全通道可消化释放曲线
Ron Aldwin S Navales1, Katelyn N Gaffield1, Ty H Kim1
1Department of Animal Sciences and Industry, College of Agriculture, Kansas State University, Manhattan, KS, 66506-0201, United States.
Translational animal science
|February 9, 2026
概括
这项研究确定了可用 (aP) 和真实全道可消化 (TTTD P) 释放曲线,用于猪中的Microtech植物酶. 结果显示,植物酶补充改善了生长和的消化能力,建立了释放曲线以获得最佳配方.
科学领域:
- 动物营养 动物营养
- 猪生理学 猪生理学
- 营养物质的新陈代谢
背景情况:
- 是猪的必需矿物质,但其从植物性料成分中的可用性受到植物酸盐的限制.
- 植物酶在猪的食中被广泛使用,以提高的利用率并减少环境分泌.
- 准确的可用 (aP) 和真正的全道可消化 (TTTD P) 释放曲线对于精确的饮食配方至关重要.
研究的目的:
- 为了建立可用的 (aP) 和真正的全道可消化 (TTTD P) 释放曲线,用于培养猪中的Microtech植物酶.
- 评估从无机来源和Microtech植物酶中增加可用的水平对猪生长性能和营养消化能力的影响.
主要方法:
- 进行了为期21天的生长试验,对320只子进行了食,饮食中含有不同程度的无机或Microtech植物酶.
- 收集了便样本,以确定干物和的表面全道消化能力 (ATTD).
- 在试验结束时进行了骨分析 (密度,灰重,灰百分比),以评估状态.
主要成果:
- 从无机来源增加可用的 (aP) 和标准化全道可消化 (STTD P),改善了最终体重,平均每日增加 (ADG) 和增加料比率 (G:F).
- 增加植物酶补充剂线性改善了最终体重和平均每日食量 (ADFI),ADG和G:F的二次性改善.
- 的消化能力和骨参数 (密度,灰质,灰的百分比) 在无机和植物酶补充剂的同时线性增加.
结论:
- 微科技植物酶有效地提高了的消化能力,并改善了猪的生长性能和骨矿化.
- 该研究成功开发了Microtech植物酶的aP和TTTD P释放曲线,使得更准确的食素配方成为可能.
- 建立的释放曲线是:aP释放 (%) = (0.868 × FTU/kg) / (9599.511 + FTU/kg) 和TTTD P释放 (%) = (0.00004017 × FTU) + 0.011.
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