摘要
本文通过研究不同有氧稳定性的全株玉米青贮对全混合日粮(TMR)在夏季发热的影响,以期探索防止TMR发热的新途径。本研究选择制作工艺和营养水平相似的3个青贮窖进行全株玉米青贮及其TMR有氧稳定性测定。制作全株玉米青贮时,青贮窖A喷洒了乳酸菌发酵剂2,青贮窖B喷洒乳酸菌发酵剂1和有机酸盐保鲜剂,青贮窖C中全株玉米青贮喷洒了乳酸菌发酵剂1。同时测定,3种全株玉米青贮及其TMR的有氧稳定性。结果表明,青贮窖A、青贮窖B和青贮窖C的全株玉米青贮有氧稳定性分别为36 h、>85.8 h和>79.5 h。相对应的全株玉米青贮制作出的TMR有氧稳定性分别为9.5、31.5和29.5 h。由此可见,有氧稳定性好的全株玉米青贮可以延缓奶牛TMR的二次发酵,提高其有氧稳定性。
In this paper,we investigated the effect of whole plant corn silage with different aerobic stability on the heat generation of TMR in summer,with a view to exploring new ways to prevent heat generation of TMR.In this study,three silage pits with similar production process and nutritional level were selected for WPCS and its TMR aerobic stability determination.Lactobacillus fermenter 2 was sprayed in silage pit A,Lactobacillus fermenter 1 and organic acid salts preservative in silage pit B,and Lactobacillus fermenter 1 in silage pit C.The aerobic stability of the three types of WPCS and its TMR was measured at the same time.The results showed that the aerobic stability of WPCS in silage pit A,silage pit B and silage pit C was 36 h,>85.8 h and>79.5 h.The corresponding aerobic stability of TMR made from WPCS was 9.5,31.5 and 29.5 h.It can be seen that aerobic stabilization of WPCS can slow down the secondary fermentation of TMR of dairy cows,and improve the aerobic stability.
作者
李胜利
杨茁萌
周娟
李怀安
王春江
纪大永
谢金梅
王东海
张效忠
盛祥参
LI Shengli;YANG Zhuomeng;ZHOU Juan;LI Huaian;WANG Chunjiang;JI Dayong;XIE Jinmei;WANG Donghai;ZHANG Xiaozhong;SHENG Xiangcan(China Agricultural University,Beijing 100193;Beijing HDR trading CO.LTD,Beijing 100193;Tianjin Jialihe Animal Husbandry Group Co.,Ltd,Tianjin,300000;China Modern Dairy Holdings Ltd.,Hohhot,011500)
出处
《中国饲料》
北大核心
2024年第14期88-92,共5页
China Feed
基金
现代农业(奶牛)产业技术体系建设专项(CARS-36)。
关键词
全株玉米青贮
TMR
有氧稳定性
二次发酵
whole plant corn silage
TMR
aerobic stabilization
secondary fermentation
