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促进乳酸菌的增殖，并影响全株玉米青贮饲料的发酵品质。

promotes the proliferation of lactic acid bacteria and influences the fermentation quality of whole-plant corn silage.

作者信息

Wang Yili, Ying Gangqing, Zhang Zimo, Tang Yu, Zhang Yunhua, Chen Lijuan

机构信息

College of Animal Science and Technology, Anhui Agricultural University, Hefei, China.

College of Resources and Environment, Anhui Agricultural University, Hefei, China.

出版信息

Front Plant Sci. 2024 Feb 15;15:1285582. doi: 10.3389/fpls.2024.1285582. eCollection 2024.

DOI:10.3389/fpls.2024.1285582
PMID:38425795
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10902168/
Abstract

OBJECTIVE

This study aimed to investigate the promoting effect of a (BV) strain on lactic acid bacteria (LAB) and determine its influence on the fermentation quality and aerobic stability of silage.

METHODS

Flat colony counting method was used to evaluate the effect of BV on the growth of LAB. Freshly harvested whole-plant corn was inoculated separately with BV and L. plantarum (LP), along with an uninoculated control group (CK), and assessed at 1, 3, 5, 7, 15, and 30 days of ensiling.

RESULTS

The results indicated that BV exhibited a proliferative effect on L-2, and Pediococcus pentosaceus. And exhibited a more rapid pH reduction in BV-inoculated silage compared with that in CK and LP-inoculated silage during the initial stage of ensiling. Throughout ensiling, the BV and LP experimental groups showed enhanced silage fermentation quality over CK. Additionally, relative to LP-inoculated silage, BV-inoculated silage displayed reduced pH and propionic acid. BV also prolonged aerobic stability under aerobic conditions. The microbial community in BV-inoculated silage showed greater stability than that in LP-inoculated silage. Additionally, and exhibited more rapid elevation initially in BV versus LP-inoculated silage, but reached comparable levels between the two inoculation groups in the later stage.

CONCLUSION

In summary, BV enhanced the efficacy and aerobic stability of whole-plant corn silage fermentation by stimulating LAB proliferation.

摘要

目的

本研究旨在探讨一种（BV）菌株对乳酸菌（LAB）的促进作用，并确定其对青贮饲料发酵品质和有氧稳定性的影响。

方法

采用平板菌落计数法评估BV对LAB生长的影响。将新鲜收获的全株玉米分别接种BV和植物乳杆菌（LP），同时设置未接种的对照组（CK），在青贮1、3、5、7、15和30天时进行评估。

结果

结果表明，BV对L-2和戊糖片球菌具有增殖作用。在青贮初期，接种BV的青贮饲料pH值下降速度比CK和接种LP的青贮饲料更快。在整个青贮过程中，BV和LP实验组的青贮饲料发酵品质均优于CK。此外，相对于接种LP的青贮饲料，接种BV的青贮饲料pH值和丙酸含量降低。BV还延长了有氧条件下的有氧稳定性。接种BV的青贮饲料中的微生物群落比接种LP的青贮饲料更稳定。此外，接种BV的青贮饲料中 和 在初期升高速度比接种LP的青贮饲料更快，但在后期两个接种组达到相当水平。

结论

综上所述，BV通过刺激LAB增殖提高了全株玉米青贮饲料发酵的效果和有氧稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/c1b4ec63efca/fpls-15-1285582-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/d4e547240f15/fpls-15-1285582-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/b3aefdb27781/fpls-15-1285582-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/6911f36ea618/fpls-15-1285582-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/1e8cc5fa6475/fpls-15-1285582-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/c1b4ec63efca/fpls-15-1285582-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/d4e547240f15/fpls-15-1285582-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/b3aefdb27781/fpls-15-1285582-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/6911f36ea618/fpls-15-1285582-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/1e8cc5fa6475/fpls-15-1285582-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c412/10902168/c1b4ec63efca/fpls-15-1285582-g005.jpg

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