Effect of Sorbic Acid, Ethanol, Molasses, Previously Fermented Juice and Combined Additives on Ensiling Characteristics and Nutritive Value of Napiergrass (Pennisetum purpureum) Silage
文献类型： 外文期刊
作者： Zhang, Lei 1 ; Li, Xinbao 2 ; Wang, Siran 2 ; Zhao, Jie 2 ; Dong, Zhihao 2 ; Zhao, Qiang 1 ; Xu, Yang 3 ; Pan, Xiaoqing 4 ; Shao, Tao 2 ;
作者机构： 1.Jining Univ, Coll Life Sci & Bioengn, Qufu 273155, Shandong, Peoples R China
2.Nanjing Agr Univ, Coll Agrograssland Sci, Inst Ensiling & Proc Grass, Nanjing 210095, Peoples R China
3.Jiangsu Chishanhu Agr Co Ltd, Zhenjiang 212433, Jiangsu, Peoples R China
4.Jiangsu Acad Agr Sci, Inst Anim Husb, Nanjing 210014, Peoples R China
关键词： napiergrass; sorbic acid; ethanol; combinations; fermentation quality
期刊名称：FERMENTATION-BASEL （ 影响因子：5.123； ）
ISSN：
年卷期： 2022 年 8 卷 10 期
页码：
收录情况： SCI
摘要： The effects of sorbic acid, ethanol, previously fermented juice and their combined additives on fermentation quality and residual water-soluble carbohydrates (WSC) of napiergrass (Pennisetum purpureum) were herein investigated. There were two experiments in total. The treatments of experiment 1 were as follows: control (no addition); sorbic acid at 0.1%, S; molasses at 1.0%, M; previously fermented juice at 5 mL/kg, P; SP; SM; SPM. The treatments of experiment 2 were as follows: control (no addition); ethanol at 1.5%, E; molasses at 1.0%, M; previously fermented juice at 5 mL/kg, P; EM; EP; EPM. The laboratory silos (10 L) were kept at room temperature (similar to 25 degrees C), and opened after 120 days of ensiling and the chemical compositions of silage were analyzed. Sorbic acid addition significantly (p < 0.05) decreased the silage pH and increased the residual WSC and lactic acid (LA) contents as compared with control. Ethanol addition decreased pH, acetic acid (AA) and volatile fatty acids (VFAs) contents, and increased the ratio of LA/AA, LA and residual WSC contents. Molasses addition increased ratios of LA/AA and enhanced WSC content used by lactic acid bacteria (LAB). The PFJ addition increased AA and ammonia nitrogen/total nitrogen (AN/TN) and decreased the LA contents. Comparing the fermentation quality among all silages in the present study, the combined additives SM and EM performed best in improving the silage quality of napiergrass.
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