添加不同比例青贮菌剂对饲草玉米玉草9911发酵效果的影响  

Effects of Adding Different Proportions of Silage Bacterial Agents on Fermentation of Forage Corn Yucao 9911

作　　者：夏运红 胡红文 李万松 李影正 罗丽 易海燕 李华雄 黄跃成 王相华 陈亮 张健 何建美 唐祈林[2] XIA Yunhong;HU Hongwen;LI Wansong;LI Yingzheng;LUO Li;YI Haiyan;LI Huaxiong;HUANG Yuecheng;WANG Xianghua;CHEN Liang;ZHANG Jian;HE Jianmei;TANG Qilin(Neijiang Academy of Agricultural Sciences,Neijiang Sichuan 641000;Maize Research Institute,Sichuan Agricultural University,Wenjiang Sichuan 611130;Lei Yangyang Livestock Breeding Professional Cooperative in Shizhong District of Neijiang City,Neijiang Sichuan 641106)

机构地区：[1]内江市农业科学院,四川内江641000 [2]四川农业大学玉米研究所,四川温江611130 [3]内江市市中区雷洋扬牲畜养殖专业合作社,四川内江641106

出　　处：《现代农业科技》2023年第20期169-172,177,共5页Modern Agricultural Science and Technology

基　　金：四川省科技计划项目(2021NZZJ0009、2022JDKP0035、2022ZHXC0057);四川省“十四五”饲草育种攻关项目(2021YFYZ0013);国家现代农业产业技术体系四川玉米创新团队资助项目(sccxtd-2020-02)。

摘　　要：本文以饲草玉米玉草9911为研究对象,通过添加不同比例的青贮菌剂(0、20、60、100 g/t),研究其对饲草玉米玉草9911发酵品质、营养成分和能量价值的影响。结果表明:青贮后,各处理pH值范围为3.43~3.47,氨态氮/总氮的数值小于10%,费氏评分100分以上,青贮过程良好,发酵品质尚好。添加不同比例的青贮菌剂对饲草玉米玉草9911的感官品质、营养成分和能量价值无显著影响,添加高比例青贮菌剂可显著提高乳酸含量,提高了相对饲喂价值,但同时也会显著增加干物质的流失。综上,饲草玉米玉草9911适合青贮,其青贮效能与玉米秸秆相当;添加高比例的青贮菌剂可得到更高的发酵品质和相对饲喂价值,但会显著降低饲料干物质含量。Taking forage corn Yucao 9911 as the research object,this paper studied the effects of different proportions of silage bacterial agents(0,20,60,100 g/t)on the fermentation quality,nutritional composition and energy value of forage corn Yucao 9911.The results showed that after silage,the pH values range of each treatment were 3.43-3.47,the value of ammonia nitrogen/total nitrogen was less than 10%,and the Flieg score was above 100 points.The silage process was good,and the fermentation quality was still good.Adding different proportions of silage inoculants did not significantly affect the sensory quality,nutritional composition and energy value of forage corn Yucao 9911.Adding a high proportion of silage bacterial agents could significantly increase the lactate content and relative feeding value,but it also significantly increased the loss of dry matter.In summary,forage corn Yucao 9911 is suitable for silage,and its silage efficiency is equivalent to that of corn straw;adding a high proportion of silage bacterial agents can achieve higher fermentation quality and relative feeding value,but it will significantly reduce the dry matter content of the feed.

关 键 词：饲草玉米 玉草9911 青贮菌剂 添加比例 发酵品质 营养成分 能量价值 

分 类 号：S548[农业科学—作物学]