在补充酸的小牛中,消化能力,类酶活性,发酵特征和精选的血液生物化学参数
Waleed K Abouamra1, Abdelslam M A Amhabj2, Hamdan M Tawfik1
1Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Assiut, Egypt.
Frontiers in veterinary science
|January 21, 2026
概括
在小牛的饮食中补充酸 (HA) 改善了营养物质的消化能力和反动物发酵. 这项研究发现,1%或2%的HA增强了酶活性,并支持小牛的正常血液样本.
科学领域:
- 动物科学动物科学
- 营养生物化学 营养生物化学
- 动物生理学 动物生理学
背景情况:
- 酸 (HA) 是一种复杂的有机物质,对动物营养有潜在的益处.
- 了解HA对反动物消化和新陈代谢的影响对于优化畜牧业生产至关重要.
- 有限的研究存在于HA对像小牛这样的年轻反动物的影响.
研究的目的:
- 为了评估食补充酸 (HA) 对小牛生长表现,营养消化能力和食发酵的影响.
- 评估HA对虫酶活性和血液生物化学参数的影响.
- 为了确定小牛食中HA的最佳含量水平.
主要方法:
- 45只小牛被分为三个组:对照组 (基础饮食),1%的HA和2%的HA补充剂.
- 饮食包括缩料混合物 (CFM) 与粗料.
- 评估了干物质摄入量,营养物质消化能力 (乙提取物,原蛋白),反发酵参数 (氨,挥发性脂肪酸),酶活性 (氨酶,脂酶,尿酶,蛋白酶) 和血液生物化学物质.
主要成果:
- 酸补充剂显著降低了总干物质摄入量.
- 乙提取物的消化能力和可消化的原始蛋白质在HA补充组中更高.
- 氨含量下降,而酸盐和酸盐的比例增加与HA补充.
- 在治疗组中,类酶活性 (α-氨酶,脂酶,尿酶,蛋白酶) 和总可溶性蛋白质显著增加.
- 2%的HA组与对照组相比显示出更高的葡萄糖度.
结论:
- 在小牛的饮食中,以1%或2%的酸补充剂可以提高营养物质的消化能力和牛发酵效率.
- 补充HA积极影响食酵素活性,并可能支持正常的血液样本.
- 进一步的研究可以探索HA在反动物营养中的长期影响和特定机制.
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