肉对西兰酶和可发酵的西洛利戈糖补充剂的反应
A Šimić1, G González-Ortiz2, S C Mansbridge1
1The National Institute of Poultry Husbandry, Harper Adams University, Edgmond, Newport, Shropshire TF10 8NB, United Kingdom.
Poultry science
|August 28, 2023
概括
用STBIO补充饮食改善了 brojler的生长和料效率. 虽然食纤维对营养保持有负面影响,但STBIO增强了的纤维降解和整体表现.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 消化系统生理学 消化系统生理学
背景情况:
- 食纤维 (DF) 影响肉的营养利用和肠道健康.
- 像西兰酶 (XYL) 这样的酶和像西洛糖类 (XOS) 这样的益生菌被探索以改善纤维消化和生长性能.
研究的目的:
- 评估食纤维,西兰酶,西洛利高糖和一种组合 (STBIO) 对肉生长,能量代谢,营养消化能力,胃肠道特征和短链脂肪酸的影响.
- 为了确定STBIO作为肉饮食中的纤维降解剂的有效性.
主要方法:
- 一项为期35天的养试验,涉及1920只Ross 308肉小,使用两种基础饮食 (玉米基和玉米小麦基) 进行.
- 饮食补充了西兰酶 (XYL),西洛利高糖化物 (XOS) 或组合 (STBIO),与对照组.
- 使用2x4的因数设计分析了生长性能,N-校正的明显代谢能量 (AMEn),营养保留,阴组织形态测量和短链脂肪酸 (SCFA).
主要成果:
- STBIO补充剂显著改善了料转换率 (FCR) 和体重增加 (WG) 从21天到35天和整体 (0-35天).
- 食纤维含量对N和脂肪保留,AMEn和干物质保留产生了负面影响,但增加了CECALSCFA (酸和酸).
- 在21天后,XYL和STBIO增强了NDF保留,在35天后,XYL或STBIO增强了DF. 没有观察到对阴组织形态测量的影响.
结论:
- 补充STBIO为肉提供了显著的好处,增强了纤维降解,体重增加和料效率.
- 食纤维可能会对营养物质利用产生负面影响,但其含有,尤其是纤维降解酶,可以调节乳腺SCFA概况.
- 作为一种有价值的添加剂,STBIO显示出改善 brojler性能和肠道健康的希望.
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