Affiliation:
1. Institute of Ensiling and Processing of Grass, College of Agro-Grassland Science Nanjing Agricultural University Nanjing China
Abstract
Abstract
Aims
This work evaluated the effects of epiphytic microbiota and chemical components on fermentation quality and microbial community of ensiled oat.
Methods and Results
Oat harvested at the heading stage (HS) and the milk stage (MS) was sterilized by gamma-ray irradiation and inoculated as the following: (1) HS epiphytic microbiota + sterilized HS (H-H); (2) MS epiphytic microbiota + sterilized HS (M-H); (3) MS epiphytic microbiota + sterilized MS (M-M); and (4) HS epiphytic microbiota + sterilized MS (H-M). After 60-day fermentation, silages inoculated with the epiphytic microbiota of HS had higher acetic acid content than those inoculated with MS. Silage made from sterilized MS had lower pH, ammonia nitrogen and butyric acid contents and higher dry matter, water-soluble carbohydrates and lactic acid contents than that made from sterilized HS. The microbial communities of oat silages were similar, and they were mainly Lactobacillus.
Conclusions
The chemical component rather than the epiphytic microbiota at harvest exerted more effects on oat silages.
Significance and Impact of the Study
This work reveals the different effects of chemical and microbial factors on the fermentation of silage, which is instructive for us to produce quality silage.
Funder
the Joint Fund for Innovative Development
the Postgraduate Research & Practice Innovation Program of Jiangsu Province
Government of Jiangsu Province
Publisher
Oxford University Press (OUP)
Subject
Applied Microbiology and Biotechnology,General Medicine,Biotechnology
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献