Characteristics of Lactobacillus parafarraginis ZH1 and its role in improving the aerobic stability of silages

作者：Q.H. Liu, Fuyu Yang, J.G. Zhang, Tao Shao · 发表于：Journal of Applied Microbiology · 年份：2014 · DOI：10.1111/jam.12530 · 被引用次数：55 · 研究领域：Ruminant Nutrition and Digestive Physiology、Composting and Vermicomposting Techniques、Soil Carbon and Nitrogen Dynamics

AIMS: Lactobacillus parafarraginis ZH1 isolated from silage was characterized, and the effects of inoculating ZH1 and Lact. buchneri (LB) on the aerobic stability of sweet corn stalk (SCS) silage and whole-plant oat (WPO) silage ensiled at 15 and 30°C were studied. METHODS AND RESULTS: After ensiling of SCS or WPO in plastic bottle silo for 45 days, silos were opened, and aerobic stability was studied by monitoring temperature change with thermo recorders in silage for 6 days. SCS silage and WPO silage were well conserved naturally at both storage temperatures. However, silages were prone to aerobic deterioration due to the presence of residual yeasts. ZH1 inoculated silages ensiled at both temperatures, LB inoculated silages ensiled at 30°C had better aerobic stability than the uninoculated silages and the LB-inoculated silage at 15°C. CONCLUSIONS: Strain ZH1 improved the aerobic stability of SCS silage and WPO silage ensiled at both 15 and 30°C, while LB improved the aerobic stability of silage only ensiled at the high temperature of 30°C. SIGNIFICANCE AND IMPACT OF THE STUDY: The new strain ZH1 can be used as an effective inhibitor for aerobic deterioration of silage maintained from 15 to 30°C.