设计农业草,以帮助减轻蛋白质分解,同时确保优化牲畜的蛋白质料供应
Nuwan P K Muhandiram1, Michael W Humphreys1, Rhun Fychan1
1Institute of Biological, Environmental and Rural Sciences (IBERS) Aberystwyth University Aberystwyth UK.
概括
与瑞草相比,Festulolium料显示出更好的蛋白质稳定性,可溶性含量较低表明蛋白质分解减少. 这表明Festulolium是牲畜料保存的更好的选择.
科学领域:
- 农业科学 农业科学
- 动物营养 动物营养
- 料质量 料质量 料质量
背景情况:
- 在料中有效保存蛋白质对于牲畜料至关重要.
- 之前的研究表明,与新鲜料中的麦草相比,Festulolium品种的蛋白质稳定性得到了提高.
- 蛋白解速率显著影响着料的营养价值.
研究的目的:
- 为了测试一种特定的Festulolium品种在化过程中表现出较低的蛋白质分解的假设,与多年生杂草相比.
- 为了评估化对Festulolium与瑞草蛋白质稳定性的影响.
- 评估收获时间对蛋白质解和料成分的影响.
主要方法:
- 在5月 (Cut 2) 和8月 (Cut 4) 收获料 (Festulolium和多年生杂草).
- 在实验室规模的仓库中,干的料被化.
- 在多个时间点 (0小时至90天) 采集了料样本,以确定干物质 (DM),pH,原蛋白 (CP),可溶 (SN) 和氨-N.
主要成果:
- 在Cut 2中,瑞草的可溶性含量更高,表明蛋白质分解更大,尽管原蛋白含量相似.
- 在Cut 4中,Festulolium的原蛋白含量较高,但可溶性没有差异;干物质的差异可能影响了结果.
- 溶性碳水化合物 (WSC) 在瑞草下降速度较慢,而pH值在瑞草下降速度也较慢,这表明发酵动态发生了变化.
结论:
- 费斯图中蛋白质稳定性增强的假设得到了早期切割料中较低可溶性和可比干物质的支持.
- 费斯图证明了改进反动物料料中的蛋白质保存的潜力.
- 管理实践,特别是干物质含量,对于优化料质量至关重要.
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