Ensiling of whole-plant hybrid pennisetum with natamycin and Lactobacillus plantarum impacts on fermentation characteristics and meta-genomic microbial community at low temperature
文献类型： 外文期刊
作者： Shah, Assar Ali 1 ; Wu, Juanzi 1 ; Qian, Chen 1 ; Liu, Zhiwei 1 ; Mobashar, Muhammad 4 ; Tao, Zhujun 1 ; Zhang, Xiaomi 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Anim Sci, Nanjing 210014, Peoples R China
2.JAAS, Natl Forage Breeding Innovat Base, Nanjing, Peoples R China
3.Minist Agr Rural Affairs, Key Lab Crop & Anim Integrated Farming, Nanjing, Peoples R China
4.Univ Agr Peshawar, Dept Anim Nutr, Fac Anim Husb & Vet Sci, Peshawar 25130, Pakistan
关键词： hybrid pennisetum; Lactobacillus plantarum; microbial population; natamycin
期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：3.638； 五年影响因子：3.802 ）
ISSN： 0022-5142
年卷期：
页码：
收录情况： SCI
摘要： BACKGROUND The aim of the current research was to clarify the impacts of the ensiling of whole-plant hybrid pennisetum with natamycin and Lactobacillus plantarum on fermentation characteristics and the meta-genomic microbial community at low temperatures. RESULTS During the ensiling process, lactic acid (LA) and lactic acid bacteria (LAB) significantly (P < 0.05) increased and acetic acid (AA), water-soluble carbohydrate (WSC), ammonia total nitrogen (NH3-N), and yeast significantly (P < 0.05) reduced in treatments as compared to controls. Different treatments and different ensiling days led to variations in the bacterial community at family and genus levels. The family Lactobacillaceae and genera Lactobacillus and Pediococcus are dominant communities in treatment silage. The family and genus levels bacterial ecology and fermentation quality were analyzed by principal component analysis (PCA). The PCO1, and PCO2 can be explained by 10.81% and 72.14% of the whole variance regularly, similarly in PCO1 and PCO2 can be explained 24.23% and 52.06% regularly. The core bacterial micro-biome operational taxonomic unit (OTU) numbers increased in treatments, as compared to controls, on different hybrid pennisetum ensiling days. CONCLUSIONS The inoculation of L. plantarum alone and combined with natamycin influenced the fermentation quality and reduced undesirable microorganisms during the fermentation of hybrid pennisetum silage. Natamycin alone did not significantly enhance the concentration of organic acid but numerically enhanced in treatments group as compared to control. (c) 2020 Society of Chemical Industry
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