营养学特异性芳香草的染色图,以减轻通过体外转体发酵的甲排放
Shabbir Ahmed1, Jian Wu2, Zixin Liu2
1State Key Laboratory of Forage Breeding-by-Design and Utilization, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Department of Dairy and Poultry Science, Gazipur Agricultural University, Gazipur, 1706, Bangladesh.
在反动物的饮食中补充黄,通过改变反动物的微生物活动,有效地减少甲排放. 在总混合配给 (TMR) 中含有3%的黄显示出最大的甲减排潜力和改善干燥物质降解.
科学领域:
- 农业科学 农业科学
- 动物科学动物科学
- 环境科学 环境科学
背景情况:
- 甲 (CH4) 是一种强大的温室气体,由反动物通过肠道发酵产生.
- 减轻甲排放的战略对于环境可持续性至关重要.
- 芳香草对反动物中甲减排的影响在很大程度上仍未被探索.
研究的目的:
- 为了研究四种芳香草 (薄荷,黄,eupatorium, dandelion) 对反动物甲产生的影响.
- 评估这些草药作为基质和添加剂对营养利用,发酵和微生物群落的作用.
- 为了确定最有效的草药和含量水平,以减轻甲.
主要方法:
- 在体外发酵草药作为基质和1%或3%的添加剂与总混合配给 (TMR).
- 对营养成分组成,发酵特性 (VFA,H2) 和甲生产的分析.
- 使用完全随机的块设计进行代谢分析和微生物多样性分析.
主要成果:
- 黄表现出更高的原蛋白 (CP) 和体外干物质消化率 (IVDMD),较低的中性清洁剂纤维 (NDF) 和酸性清洁剂纤维 (ADF).
- 黄补充剂导致甲 (CH4) 生产减少,而eupatorium增加了 (H2) 和CH4.
- 黄改变了乳头的微生物种群,特别是增加了Succinivibrionaceae,它利用H2生产酸盐,从而减少了甲的形成.
结论:
- 黄是一种有前途的草药,可以减少反动物的甲排放,因为它对营养成分和反动物微生物代谢的影响.
- 在TMR中含有3%的黄表明了最佳的干物质降解和甲缓解潜力.
- 芳香草,特别是黄,是可持续的反动物生产的可行策略.
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