简单或复杂的断奶后猪饮食中的β-曼酶加多碳水化合物复合物的组合对营养代谢和肠道健康产生了影响
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Gabriela M Galli1, Ines Andretta1, Camila L Carvalho1
1Department of Animal Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Frontiers in veterinary science
|September 2, 2024
概括
将β-曼酶等酶添加到小猪的饮食中可以改善营养和能量利用. 这些酶添加物增强了断奶猪的饮食消化能力和肠道健康,支持更好的生长.
科学领域:
- 动物营养 动物营养
- 猪生理学 猪生理学
- 消化系统健康 消化系统健康
背景情况:
- 断奶猪经常面临饮食消化能力和肠道健康方面的挑战.
- 简单的玉米和大豆基饮食与更复杂的配方相比较.
- 外源酶在改善猪的饮食中的有效性是正在进行的研究领域.
研究的目的:
- 评估单独或与多碳水化合物酶复合体 (BM + MCC) 的β-曼纳酶 (BM) 对断奶猪的饮食消化能力,营养和能量代谢以及肠道健康的影响.
- 为了比较简单与复杂的饮食对断奶猪的表现的影响.
- 评估酶补充对便生物标志物和血清急性阶段蛋白质的影响.
主要方法:
- 使用简单或复杂的饮食和三个治疗方法的2x3因数排列:没有酶 (控制),BM或BM + MCC.
- 30只断奶猪在断奶后的17天内接受了实验性饮食.
- 收集了便,尿液和血液样本,以及肠道组织,以分析消化能力,新陈代谢,生物标志物和肠道健康指标.
主要成果:
- 简单的饮食显示出比复杂的饮食更大的蛋白质消化能力.
- 酶补充剂 (BM和BM + MCC) 显著改善了能量消化能力和代谢能力,可代谢能量增加了64-100千卡/公斤.
- 与对照组相比,BM和BM + MCC减少了便水分,产量和calprotectin度的29-46%.
结论:
- 简单的饮食是断奶猪复杂饮食的可行的替代方案,保持营养消化能力和肠道健康.
- 外源酶补充剂,特别是BM和BM + MCC,可以提高断奶猪的营养和能量利用率.
- 酶添加改善肠道吸收区域,并减少肠道炎症标志物,如便calprotectin.
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