草地学报 ›› 2022, Vol. 30 ›› Issue (4): 1021-1026.DOI: 10.11733/j.issn.1007-0435.2022.04.030

• 技术研发 • 上一篇    

不同青贮添加剂对饲用谷子青贮品质的影响

赵牧其尔1, 王志军1, 包健1, 孙林2, 张永虎2, 温蕊2, 王伟3, 贾玉山1, 格根图1   

  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, 草地资源教育部重点实验, 内蒙古 呼和浩特 010019;
    2. 内蒙古自治区农牧业科学院, 内蒙古 呼和浩特 010031;
    3. 呼伦贝尔学院, 内蒙古 呼伦贝尔 021008
  • 收稿日期:2021-09-09 修回日期:2021-10-29 发布日期:2022-04-25
  • 通讯作者: 格根图,E-mail:gegentu@163.com
  • 作者简介:赵牧其尔(1996-),女,蒙古族,内蒙古兴安盟人,博士研究生,主要从事牧草加工与利用研究,E-mail:zhaomuqier@163.com
  • 基金资助:
    财政部和农业农村部:国家现代农业产业技术体系资助

Effect of Different Silage Additives on the Silage Quality of Forage Millet

ZHAO Mu-qier1, WANG Zhi-jun1, BAO Jian1, SUN Lin2, ZHANG Yong-hu2, WEN Rui2, WANG Wei3, JIA Yu-shan1, GE Gen-tu1   

  1. 1. College of Grassland, Resource and Environmental, Inner Mongolia Agricultural University, Key Laboratory of Forage Cultivation Processing and High Efficient Utilization of Ministry of Agricultural Key Laboratory of Grassland Resources, Ministry of Education PR of China, Hohhot, Inner Mongolia 010019, China;
    2. Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot, Inner Mongolia 010031, China;
    3. Hulunbuir University, Hunlunbuir, Inner Mongolia 021008, China
  • Received:2021-09-09 Revised:2021-10-29 Published:2022-04-25

摘要: 为高效利用饲用谷子(Setaria italica)解决家畜饲料短缺的问题,探究饲用谷子高品质的青贮发酵技术,本试验以乳熟期'118'饲用谷子为原料,设置对照(CK),添加植物乳杆菌组(LP)、蔗糖组(S)、纤维素酶组(CE)及其组合添加处理组,并在青贮60 d后,测定其营养成分、发酵指标和微生物数量。结果表明:不同青贮添加剂对饲用谷子的干物质、粗蛋白质、中性洗涤纤维和可溶性碳水化合物含量均有显著影响(P<0.05);青贮添加剂有效地降低了饲用谷子青贮饲料的pH值,增加了附着的乳酸菌数量,提高了乳酸和乙酸含量;其中,青贮后添加植物乳杆菌和纤维素酶的混合处理组的pH值降低至4.05,乳酸和乙酸含量高于其他处理组。利用灰色关联度法综合评价,LP+CE组和LP+S组最好。综上所述,植物乳杆菌和纤维素酶的复合促进剂、植物乳杆菌和蔗糖的复合促进剂均改善了饲用谷子青贮发酵品质。

关键词: 谷子, 青贮饲料, 青贮添加剂, 营养成分, 发酵品质, 微生物数量

Abstract: In order to make reasonable and efficient use of forage millet,solve the problem of the shortage of livestock feed,and explore high-quality silage fermentation technology of forage millet,the'118'variety from milk ripening period was used as raw material,the control (CK),Lactobacillus plantarum plant group (LP),sucrose group (S),cellulase group (CE) and its combination were set.After 60 d of silage,its nutrient composition,fermentation index,and microbial number were determined.The results showed that different silage additives had significant effects on dry material,crude protein,neutral washing fibers,and soluble carbohydrate content of the'118'species (P <0.05).The silage additive effectively reduced the pH of the'118'cultivar,increased the number of attached lactic acid bacteria,and increased the lactic acid and acetate content;the pH of the mixed treatment group of L.flora and cellulase was reduced to 4.05 and the lactate and acetate content was higher than the other treatment groups.The comprehensive evaluation used the gray correlation method,the LP+CE and LP+S groups were the best.In conclusion,compound promoters of lactobacillus plant and cellulase,lactobacillus plant,and sucrose all improved the fermentation quality of fed millet silage.

Key words: Millet, Silage, Silage additives, Nutrient content, Fermentation quality, Microbial population

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