Effects of probiotic administration on the digestibility characteristics and growth performance of finishing beef cattle fed a total mixed ration containing different levels of corn stover

文献类型： 外文期刊

第一作者： Wu, Qingyu

作者： Wu, Qingyu;Huang, Qiulian;Zhou, Xin;Sun, Yun;Yang, Jingjing;Zhang, Aizhong;Cao, Yang;Wu, Qingyu;Huang, Qiulian;Zhou, Xin;Sun, Yun;Yang, Jingjing;Zuo, Feng;Cao, Yang;Cao, Manyu;Xie, Huade;Guo, Jun;Lei, De;Cao, Yang

作者机构：

关键词： corn stover; digestibility characteristics; finishing beef cattle; growth performance; probiotics

期刊名称：ANIMAL SCIENCE JOURNAL （ 影响因子：1.974； 五年影响因子：2.027 ）

ISSN： 1344-3941

年卷期： 2022 年 93 卷 1 期

页码：

收录情况： SCI

摘要： In this study, we aimed to assess the effects of probiotic administration on the digestibility characteristics and growth performance of finishing beef cattle fed a total mixed ration (TMR) containing different levels of corn stover. One hundred and sixty Simmental x Continental crossbred bulls were randomly allocated to two animal houses (80 bulls each) and randomly assigned four TMR differing in the level of corn stover-high (HCT) and low (LCT)-with or without probiotics in each animal house. Feeding HCT supplemented with probiotics increased (P < 0.05) the apparent digestibility of crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), and acid detergent fiber (ADF). Regardless of probiotic supplementation, the nitrogen intake and fecal nitrogen levels of animals fed HCT were lower than those fed LCT (P < 0.05). Additionally, feeding probiotics increased (P < 0.05) the efficiency of ruminal fermentation, final body weight, and average daily gain (ADG) of animals, with this effect being stronger in animals fed HCT. In conclusion, supplementing probiotics with HCT has a positive effect on the growth of finishing beef cattle, thereby providing economic benefits.

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