Department of Animal Science, College of Animal Science and Technology, Shihezi University, Shihezi 832000, Xinjiang Province, China.
Biomed Res Int. 2019 Feb 17;2019:4361358. doi: 10.1155/2019/4361358. eCollection 2019.
This study aimed to investigate the effects of the combined use of cellulose-decomposing bacteria (CDB) and heterolactic lactic acid bacteria (LAB) on corn silage fermentation. Fresh maize was treated with heterolactic LAB or CDB combined with heterolactic LAB inoculants or without any treatment. Chemical and microbiological analyses were conducted at specific times after ensiling. A comprehensive value evaluation was conducted using the principal component analysis model. Although all treatments significantly affected the microorganism numbers during fermentation, the numbers of aerobic bacteria, LAB, yeast, and molds in the groups with combined CDB and LAB were significantly higher than those in the group with LAB only ( < 0.05). All treatments regulated the silage CO production. Each treatment had different effects on the nutrient degradation rate. Based on a comprehensive evaluation, the CDB and heterolactic LAB combination had the best effect on the ensiling process in improving the quality and feed value of corn silage.
本研究旨在探讨纤维素分解菌（CDB）与异型乳酸杆菌（LAB）联合使用对玉米青贮发酵的影响。新鲜玉米用异型乳酸杆菌或 CDB 与异型乳酸杆菌接种剂联合处理，或不做任何处理。青贮后特定时间进行化学和微生物分析。使用主成分分析模型进行综合价值评估。虽然所有处理都显著影响发酵过程中的微生物数量，但在 CDB 和 LAB 联合组中，好氧细菌、LAB、酵母和霉菌的数量明显高于单独使用 LAB 的组（<0.05）。所有处理都调节青贮 CO 的产生。每种处理对养分降解率都有不同的影响。基于综合评价，CDB 和异型乳酸杆菌联合处理对青贮过程的改善效果最好，提高了玉米青贮的质量和饲料价值。
