发酵抑制剂对羊草青贮品质和有氧稳定性的影响

doi:10.11733/j.issn.1007-0435.2023.08.035

草地学报 ›› 2023, Vol. 31 ›› Issue (8): 2564-2570.DOI: 10.11733/j.issn.1007-0435.2023.08.035

• 技术研发 • 上一篇

发酵抑制剂对羊草青贮品质和有氧稳定性的影响

刘逸超¹, 孙鹏波¹, 张佳伟¹, 李冬梅¹, 马宏伟², 井志伟³, 王瑞峰³, 贾玉山¹

1. 内蒙古农业大学草原与资源环境学院, 农业部饲草栽培、加工与高效利用重点实验室, 内蒙古呼和浩特 010000;
2. 内蒙古正时生态农业有限公司, 内蒙古土默特左旗 010100;
3. 内蒙古伊禾绿锦农业发展有限公司, 内蒙古阿鲁科尔沁旗 025500

收稿日期:2023-03-23 修回日期:2023-05-11 出版日期:2023-08-15 发布日期:2023-09-01
通讯作者: 贾玉山,E-mail:jys_nm@sina.com
作者简介:刘逸超(1998-),男,汉族,内蒙古呼和浩特人,博士研究生,主要从事牧草饲料加工与贮藏研究,E-mail:liuyichao_nm@163.com
基金资助:
天然青干草产品加工与安全贮藏关键技术研究(2020GG0032)；国家牧草产业技术体系(CARS-34)资助

Effect of Fermentation Inhibitors on Quality and Aerobic Stability of Leymus chinensis Silage

LIU Yi-chao¹, SUN Peng-bo¹, ZHANG Jia-wei¹, LI Dong-mei¹, MA Hong-wei², JING Zhi-wei³, WANG Rui-feng³, JIA Yu-shan¹

1. College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Key Laboratory of Forage Grass Cultivation Processing and Efficient Utilization, Ministry of Agriculture, Hohhot, Inner Mongolia 010000, China;
2. Inner Mongolia Zhengshi Ecological Agriculture Co., Tumed Left Banne, Inner Mongolia 010100, China;
3. Inner Mongolia Yihe Lvjin Agricultural Development Co., Ar Horqin Banner, Inner Mongolia 025500, China

Received:2023-03-23 Revised:2023-05-11 Online:2023-08-15 Published:2023-09-01

摘要/Abstract

摘要： 在青贮饲料发酵和有氧暴露期间，微生物的生长活动是影响青贮品质和有氧稳定性的关键。为了研究发酵抑制剂对羊草青贮品质、有氧稳定性和微生物数量的影响，设置4个处理组，分别为对照组(无添加剂)、丙酸组(0.2% FM)、苯甲酸钠组(0.2 % FM)、山梨酸钾组(0.2 % FM)，每组3个重复，切碎羊草袋装青贮，在室温青贮60 d和有氧暴露8 d时取样分析。结果显示，在发酵和有氧暴露过程中，丙酸能有效提高羊草青贮的干物质、可溶性糖、乙酸和丙酸含量，降低pH值和氨态氮含量，减少酵母菌和好气性细菌的数量。在本试验条件下，添加发酵抑制剂均能有效改善青贮品质和有氧稳定性，但作用效果由高到低依次为丙酸、山梨酸钾和苯甲酸钠。通过使用发酵抑制剂，能有效降低青贮饲料二次发酵和有氧变质的风险。

关键词: 羊草, 青贮, 发酵抑制剂, 有氧稳定性

Abstract: During silage fermentation and aerobic exposure,the growth activity of microorganisms is taking the key role to silage quality and aerobic stability. The aim of this experiment was to investigate the effect of fermentation inhibitors on quality,aerobic stability and microbial population of Leymus chinensis silage. Four groups of L. Chinese silage were set up in the experiment:control group (no additives),propionic acid addition group (0.2 % FM),sodium benzoate addition group (0.2 % FM),and potassium sorbate addition group (0.2 % FM),with three replicates in each group at room temperature after cut-up and bagging-off,and sampled for analysis at 60 d and then 8 d of aerobic exposure. The results showed that propionic acid was effective in the enhancement of the dry matter,soluble sugars,acetic acid and propionic acid content of L. chinensis silage,reducing its pH value and ammonia nitrogen content,and suppressing the number of yeast and aerobic bacteria in the silage during the fermentation and aerobic exposure. Under this test condition,the addition of the tested fermentation inhibitors were all effective in improving silage quality and aerobic stability,but the effects were in descending order of propionic acid,potassium sorbate and sodium benzoate. By using fermentation inhibitors,the risk of secondary fermentation and aerobic deterioration of L. chinensis silage can be effectively reduced,and the utilization rate of silage and the health of livestock can be guaranteed.

Key words: Leymus chinensis, Silage, Fermentation inhibitor, Aerobic stability

中图分类号:

S816.5+3

刘逸超, 孙鹏波, 张佳伟, 李冬梅, 马宏伟, 井志伟, 王瑞峰, 贾玉山. 发酵抑制剂对羊草青贮品质和有氧稳定性的影响[J]. 草地学报, 2023, 31(8): 2564-2570.

LIU Yi-chao, SUN Peng-bo, ZHANG Jia-wei, LI Dong-mei, MA Hong-wei, JING Zhi-wei, WANG Rui-feng, JIA Yu-shan. Effect of Fermentation Inhibitors on Quality and Aerobic Stability of Leymus chinensis Silage[J]. Acta Agrestia Sinica, 2023, 31(8): 2564-2570.

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发酵抑制剂对羊草青贮品质和有氧稳定性的影响

Effect of Fermentation Inhibitors on Quality and Aerobic Stability of Leymus chinensis Silage

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