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Effect of Cordyceps militaris Residue and Lactiplantibacillus plantarum on Fermentation Quality and Bacterial Community of Alfalfa Silage

文献类型： 外文期刊

作者： Wei, Luheng 1 ; Zhao, Meirong 1 ; Song, Jia 1 ; Gao, Duo 2 ; Li, Xinnan 2 ; Sun, Juanjuan 3 ; Yu, Zhu 4 ; Bai, Chunsheng 1 ;

作者机构： 1.Shenyang Agr Univ, Coll Hort, Shenyang 110866, Peoples R China

2.Liaoning Inspect Examinat & Certificat Ctr, Shenyang 110016, Peoples R China

3.Chinese Acad Agr Sci, Inst Grassland Res, Hohhot 010010, Peoples R China

4.China Agr Univ, Coll Grassland Sci & Technol, Beijing 100193, Peoples R China

关键词： Cordyceps militaris residue; alfalfa silage; NH3-N; random forest analysis

期刊名称：MICROORGANISMS （ 影响因子：4.2； 五年影响因子：4.6 ）

ISSN：

年卷期： 2025 年 13 卷 8 期

页码：

收录情况： SCI

摘要： In order to reduce the environmental burden associated with Cordyceps militaris residue, we conducted a study to explore the feasibility of Cordyceps militaris residue as a silage additive. The experimental treatments included distilled sterile water control (CK), Lactiplantibacillus plantarum (LP, 1 x 10(5) cfu/g), Cordyceps militaris residue (CM, 4% of fresh matter), and their combination (LP + CM). A total of 48 samples (4 treatments x 4 storage periods x 3 replicates) were prepared for the analysis of fermentation quality, chemical composition, microbial population, and bacterial community composition at days 2, 7, 28, and 45 of ensiling. Results showed that compared with the control, the CM and LP + CM treatments increased the lactic acid bacteria number and lactic acid content (p < 0.05), and a decrease in pH value and NH3-N content was observed (p < 0.05). The bacterial diversity in the CM group was higher and lower than that in the CK group in the early and late stages of fermentation, respectively, and maintained a higher relative abundance of Lactococcus on day 7. Lactobacillus remained the predominant bacterial community at the end of fermentation. Random forest analysis indicated that Lactobacillus was a key determinant of the pH, lactic acid, and acetic acid levels. Consequently, the addition of Cordyceps militaris residue alone, or combined with Lactiplantibacillus plantarum, improved the quality of alfalfa silage by increasing lactic acid and lowering NH3-N, providing a new approach for its development and utilization.

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