探讨用黄芪和山楂残渣青贮的紫花苜蓿的青贮质量。
Exploring the silage quality of alfalfa ensiled with the residues of astragalus and hawthorn.
机构信息
College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China.
College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China.
出版信息
Bioresour Technol. 2020 Feb;297:122249. doi: 10.1016/j.biortech.2019.122249. Epub 2019 Oct 9.
This study evaluated the effect of astragalus (AS) and hawthorn (HN) residues on the silage quality of alfalfa. Alfalfa was ensiled with additives (AS, HN and AS + HN) or without additives for 60 days. Results showed that the silage treated with AS and HN had lower contents of butyric acid and NH-N compared with control, whereas no significant differences of pH and lactic or acetic acid content were found. Additionally, the treated silages also exhibited lower copy numbers of Clostridium, Enterobacter and fungi during ensiling process established by qPCR. In conclusion, AS and HN could be used as additives to control the growth of unfavorable microorganism and enhance the silage quality.
本研究评估了黄芪（AS）和山楂（HN）残渣对苜蓿青贮品质的影响。将苜蓿分别用添加剂（AS、HN 和 AS+HN）或不用添加剂青贮 60 天。结果表明，与对照相比，用 AS 和 HN 处理的青贮料中丁酸和 NH-N 的含量较低，而 pH 值以及乳酸和乙酸含量没有显著差异。此外，通过 qPCR 建立的青贮过程中，处理后的青贮料中梭菌、肠杆菌和真菌的拷贝数也较低。综上所述，AS 和 HN 可作为添加剂，控制不利微生物的生长，提高青贮料的品质。
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