首页|全株玉米青贮有氧稳定性对延缓全混合日粮夏季发热的影响

全株玉米青贮有氧稳定性对延缓全混合日粮夏季发热的影响

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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.
Effects of aerobic stability of whole-plant corn silage on delaying summer fever in total mixed rations
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.

whole plant corn silageTMRaerobic stabilizationsecondary fermentation

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

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中国农业大学动物科技学院,北京 100193

北京厚德瑞商贸有限公司,北京 100071

天津嘉立荷牧业有限公司,天津 300000

现代牧业(集团)有限公司,内蒙古呼和浩特 011500

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全株玉米青贮 TMR 有氧稳定性 二次发酵

2024

中国饲料
中国饲料工业协会

中国饲料

北大核心
影响因子:0.577
ISSN:1004-3314
年,卷(期):2024.(14)