摘要
试验旨在探讨霉菌毒素吸附剂对西门塔尔育肥牛瘤胃发酵指标及微生物区系的影响。选择健康、体况良好、平均体重为365.64 kg的西门塔尔育肥牛32头,随机分为2组,每组16个重复,每个重复1头牛。对照组牛饲喂基础日粮,处理组在基础日粮中添加0.2 g/kg霉菌毒素吸附剂。预试期7 d,正式试验期193 d,霉菌毒素吸附剂在晨饲时投喂。结果显示,与对照组相比,处理组西门塔尔育肥牛瘤胃菌体蛋白(MCP)含量显著提高(P<0.05),瘤胃的Simpson指数具有升高的趋势(P>0.05),棒状菌门的丰度具有降低的趋势(P>0.05)。研究表明,添加0.2 g/kg霉菌毒素吸附剂具有促进西门塔尔育肥牛瘤胃微生物对氮的利用、丰富微生物区系的物种多样性和降低棒状菌门相对丰度的趋势。
The experiment was conducted to investigate the effect of mycotoxin adsorbents on rumen fermentation indexes and microflora of Simmental fattening cattle. Thirty-two healthy Simmental fattening cattle with an average body weight of 365.64 kg were randomly divided into two groups with 16 replicates in each group and one cattle in each replicate. Cattle in control group were fed with a basal diet, and cattle in treatment group were fed with basal diet supplemented with 0.2 g/kg mycotoxin adsorbent. The pre-test lasted for 7 d and the formal experiment lasted for 193 d.The mycotoxin adsorbent was fed at morning feeding. The results showed that compared with control group, ruminal microsomal protein(MCP) content of Simmental fattening cattle in treatment group was significantly increased(P<0.05).Compared with control group, rumen Simpson index of cattle in treatment group had an increasing trend(P>0.05).Compared with the control group, the abundance of Corynebacterium in treatment group had a tendency to decrease(P>0.05). The experiment indicates that the addition of 0.2 g/kg mycotoxin adsorbent can promote the utilization of nitrogen, enrich the diversity of microbial flora and reduce the relative abundance of corynete in Simmental fattening cattle.
作者
刘青玉
李瑞银
邹松岩
李岩
李秋凤
曹玉凤
李建国
赵超
LIU Qing-yu;LI Rui-yin;ZOU Song-yan;LI Yan;LIQiu-feng;CAO Yu-feng;LI Jian-guo;ZHAO Chao
出处
《饲料研究》
CAS
北大核心
2023年第1期1-5,共5页
Feed Research
基金
河北省优质粗饲料防霉及高效利用关键技术(项目编号:19226615D)
河北省二期现代农业产业技术体系肉牛创新团队高效养殖岗位建设项目(项目编号:HBCT2018130202)
国家现代农业产业技术体系(项目编号:CARS-37)。
