评估不同植物性添加剂的"体外"粉发酵情况和甲排放情况
Hani M El-Zaiat1, Hussein A Masood1, Samira S Al Hinai1
1Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman.
Frontiers in veterinary science
|May 16, 2025
概括
尼姆和印地瓜树叶有效地改善了皮发酵,并减少了牛的甲排放. 这些植物性添加剂提高了料的可降解性和挥发性脂肪酸的产生,同时降低了氨和原生动物的水平.
科学领域:
- 类动物营养 类动物营养
- 农业科学 农业科学
- 环境科学 环境科学
背景情况:
- 植物性料添加剂在反动物营养中越来越多地用于改善发酵和减少甲 (CH4) 排放.
- 植物性化合物为合成添加剂提供了一个天然的替代品,用于调节功能.
研究的目的:
- 评估三种植物性添加剂的效果:尼姆叶 (NL),印地瓜叶 (IL) 和南瓜皮 (PP).
- 评估它们对体外食发酵,料可降解性和各种含量级的CH4生产的影响.
主要方法:
- 采用了体外气体生产技术,使用一个总混合食量 (TMR) 化与缓冲液.
- 在24小时内,添加剂 (NL,IL,PP) 含量为0,10,20和30g/kg干物质 (DM).
主要成果:
- 补充NL和IL显著增加了气体产生,CO2,有机物可降解性和挥发性脂肪酸 (propionate,butyrate).
- 乙酸盐度,CH4排放,NH3-N,和原生动物被NL和IL降低. PP显示的效果有限.
- 在NL和IL中的化合物,如2-基酸,可能有助于观察到的好处.
结论:
- 尼姆叶和印地瓜叶是有效的植物性添加剂,可增强的发酵,并减轻反动物的CH生产.
- 建议进行进一步的体外研究,以证实这些体外发现及其实际应用.
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