Effect of inoculants and storage temperature on the microbial, chemical and mycotoxin composition of corn silage

文献类型： 外文期刊

第一作者： Wang, Musen

作者： Wang, Musen;Xu, Shengyang;Wang, Tianzheng;Jia, Tingting;Yu, Zhu;Xu, Zhenzhen;Wang, Xue

作者机构：

关键词： Lactobacillus plantarum; Pediococcus pentosaceus; Corn Silage; Nutritive Value; Mycotoxin

期刊名称：ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES （ 影响因子：2.509； 五年影响因子：2.604 ）

ISSN： 1011-2367

年卷期： 2018 年 31 卷 12 期

页码：

收录情况： SCI

摘要： Objective: To evaluate the effect of lactic acid bacteria and storage temperature on the microbial, chemical and mycotoxin composition of corn silage. Methods: Corn was harvested at 32.8% dry matter, and chopped to 1 to 2 cm. The chopped material was subjected to three treatments: i) control (distilled water); ii) 1x10(6) colony forming units (cfu)/g of Lactobacillus plantarum; iii) 1x10(6) cfu/g of Pediococcus pentosaceus. Treatments in triplicate were ensiled for 55 d at 20 degrees C, 28 degrees C, and 37 degrees C in 1-L polythene jars following packing to a density of approximately 800 kg/m(3) of fresh matter, respectively. At silo opening, microbial populations, fermentation characteristics, nutritive value and mycotoxins of corn silage were determined. Results: L. plantarum significantly increased yeast number, water soluble carbohydrates, nitrate and deoxynivalenol content, and significantly decreased the ammonia N value in corn silage compared with the control (p<0.05). P. pentosaceus significantly increased lactic acid bacteria and yeast number and content of deoxynivalenol, nivalenol, T-2 toxin and zearalenone, while decreasing mold population and content of nitrate and 3-acetyl-deoxynivalneol in corn silage when stored at 20 degrees C compared to the control (p<0.05). Storage temperature had a significant effect on deoxynivalenol, nivalenol, ochratoxin A, and zearalenone level in corn silage (p<0.05). Conclusion: Lactobacillus plantarum and Pediococcus pentosaceus did not decrease the contents of mycotoxins or nitrate in corn silage stored at three temperatures.

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