草地学报 ›› 2022, Vol. 30 ›› Issue (12): 3455-3463.DOI: 10.11733/j.issn.1007-0435.2022.12.033

• 技术研发 • 上一篇    

化学添加剂对有氧胁迫下湿贮玉米发酵品质和有氧稳定性的影响

刘宇洋1,3, 高文韩1, 孔令芝1,3, 郑杨晨1,3, 刘畅1, 何涛1,3, 薛艳林2, 李井春1,3, 李雁冰1,3   

  1. 1. 黑龙江八一农垦大学动物科技学院, 黑龙江省寒区饲料资源高效利用与营养调控重点实验室, 黑龙江 大庆 163319;
    2. 内蒙古自治区农牧科学院, 内蒙古 呼和浩特 010031;
    3. 农业农村部东北平原农业绿色低碳重点实验室, 黑龙江 大庆 163319
  • 收稿日期:2022-07-25 修回日期:2022-09-27 发布日期:2023-01-04
  • 通讯作者: 李雁冰,E-mail:liyanbing929@163.com
  • 作者简介:刘宇洋(1995-),男,汉族,黑龙江鸡西人,硕士研究生,主要从事青贮饲料加工与调制的研究,E-mail:liuyuyang0016@yeah.net
  • 基金资助:
    国家自然科学基金项目(31402136);黑龙江省自然科学基金青年项目(QC2018022)资助

Effects of Chemical Additives on the Fermentation Quality and Aerobic Stability of High Moisture Corn under the air stress

LIU Yu-yang1,3, GAO Wen-han1, KONG Ling-zhi1,3, ZHENG Yang-chen1,3, LIU Chang1, HE Tao1,3, XUE Yan-lin2, LI Jing-chun1,3, LI Yan-bing1,3   

  1. 1. College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University;Key Laboratory of Efficient Utilization of Feed Resources and Nutrition manipulation in Cold Region of Heilongjiang Province, Daqing, Heilongjiang Province, 163319, China;
    2. Inner Mongolia Academy of Agricultural&Animal Husbandry Sciences, Hohhot, Inner Mongolia 010031, China;
    3. Key Laboratory of Low-carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs P. R. China, Daqing, Heilongjiang Province 163319, China
  • Received:2022-07-25 Revised:2022-09-27 Published:2023-01-04

摘要: 为研究苯甲酸钠、山梨酸钾和亚硝酸钠组成的化学添加剂对有氧胁迫处理的湿贮玉米发酵品质和有氧稳定性的影响。以35%和50%含水量的湿贮玉米为原料,设置对照组(无添加)、添加组1(2mL·kg-1)、添加组2(4mL·kg-1)在湿贮期设置不同时期有氧胁迫处理分别为:前期有氧胁迫处理(1~7d,Early air stress,EAS)、后期有氧胁迫处理(22~28 d,Later air stress,LAS)、全程有氧胁迫处理(1~28d,Full air stress,FAS),28d后分析发酵品质、有氧稳定性以及有氧暴露7d后的发酵品质。结果表明:与对照组相比,添加组2的有机酸浓度最高,干物质损失最少,而且有氧稳定性最高。4mL·kg-1的化学添加剂还显著抑制了酵母菌和大肠杆菌的生长。因此,化学添加剂明显消除了氧气的负面影响,并延长了有氧胁迫条件下的有氧稳定时间。

关键词: 湿贮玉米, 化学添加剂, 有氧胁迫, 发酵品质, 有氧稳定性

Abstract: To investigate the effects of chemical addition consisting of sodium benzoate,potassium sorbate,and sodium nitrite on the fermentation quality and aerobic stability of high moisture corn processed with air stress treatments of different stages. The control group (no addition),addition group 1 (2 mL·kg-1),and addition group 2 (4 mL·kg-1) were treated with air stress of different stages of wet storage as early air stress treatment (1-7 d,EAS),later air stress treatment (22-28 d,LAS),and full air stress treatment (1-28 d,FAS),respectively. The fermentation quality,aerobic stability,and fermentation quality after 7 days of aerobic exposure were analyzed after 28 days. The results showed that,Compared to the control group,The addition group 2 had significantly the highest concentrations of organic acid,the greatest recoveries of DM,and the highest aerobic stability. The chemical additive of 4 mL·kg-1 groups inhibited the growth of yeast and E. coli. In summary,Chemical additives significantly eliminated the negative effects of oxygen and prolonged aerobic stabilization under air stress conditions.

Key words: High moisture corn, Chemical addition, Air stress, Fermentation quality, Aerobic stability

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