Peng Shun, Xie Lingling, Cheng Yuyao, Wang Qiqi, Feng Li, Li Yang, Lei Yonghui, Sun Yanfei
College of Life Sciences/Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, Shihezi University, Shihezi, Xinjiang, China.
Department of Plant Protection, College of Agriculture, Shihezi University, Shihezi, Xinjiang, China.
Front Plant Sci. 2024 Aug 30;15:1412759. doi: 10.3389/fpls.2024.1412759. eCollection 2024.
Paper mulberry is a promising alternative fodder source due to its high protein and the abundance of active components. However, paper mulberry often faces susceptibility to contamination during silage fermentation, and there is a need to improve the quality of silage fermentation of paper mulberry through exotic additives. Sea buckthorn pomace (BP) is a feed additive containing antimicrobial and antioxidant substances that help to enhance silage fermentation. Therefore, the objective of this study was to evaluate the effects of BP and as additives on silage fermentation and bacterial community of paper mulberry.
The results showed that BP and significantly reduced the pH and ammonium nitrogen content of paper mulberry silage ( < 0.05) and significantly increased the content of lactic acid and acetic acid ( < 0.05), resulting in more residual water-soluble carbohydrate and crude protein contents and less fiber content relative to the control. The key microorganisms in paper mulberry silage fermentation are and . Among these, favored a rapid increase in abundance during the pre-silage fermentation period, whereas BP favored the promotion of growth, resulting in higher contents of lactic and acetic acid than those of the control.
Simultaneously adding and BP can effectively improve the quality of paper mulberry silage and increase the abundance of beneficial microorganisms in paper mulberry silage.
构树因其高蛋白和丰富的活性成分而成为一种有前景的替代饲料来源。然而，构树在青贮发酵过程中常易受污染，需要通过外源添加剂来提高构树青贮发酵的质量。沙棘果渣（BP）是一种含有抗菌和抗氧化物质的饲料添加剂，有助于增强青贮发酵。因此，本研究的目的是评估BP和[具体物质]作为添加剂对构树青贮发酵和细菌群落的影响。
结果表明，BP和[具体物质]显著降低了构树青贮的pH值和铵态氮含量（P<0.05），并显著提高了乳酸和乙酸含量（P<0.05），相对于对照组，导致更多的残留水溶性碳水化合物和粗蛋白含量以及更少的纤维含量。构树青贮发酵中的关键微生物是[微生物名称1]和[微生物名称2]。其中，[具体物质]有利于青贮前期[微生物名称1]丰度的快速增加，而BP有利于促进[微生物名称2]的生长，导致乳酸和乙酸含量高于对照组。
同时添加[具体物质]和BP可以有效提高构树青贮的质量，并增加构树青贮中有益微生物的丰度。
