Chen Yingwu, Chen Kai, Zhu Xinqiang, Wang Xiaoli, Leng Feifan, Wang Yonggang
Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, 335 JianGouYan Road, Qilihe District, Lanzhou, 730050, Gansu, People's Republic of China.
School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, China.
Mol Biotechnol. 2025 Mar 8. doi: 10.1007/s12033-025-01402-y.
The effect of beef cattle (Angus vs. Simmental) feeds with various diet formulas on the production performance, blood biochemical indexes, beef quality, and rumen bacterial diversity were investigated. Corn silage, sorghum silage, and the mixture of corn silage and sorghum silage were used as experimental materials to compare the feeding effect of different proportions of feed. The results showed that fattening cattle fed diets containing 75% or 100% sweet sorghum (DMD and DME) had a daily gain of 0.85-0.92 kg. The fattening rate of cattle fed with 50% sweet sorghum (DMC) was 54.78%. There were no adverse effects on beef quality and blood physiological and biochemical indexes in each group. In terms of rumen bacterial diversity, the flora of rumen fluid mainly contains Firmicutes and Bacteroidetes. Prevotella and Succinic acid were the dominant groups in the known genera of rumen fluid bacteria. Compared with the cattle fed with corn silage alone, the growth performance, slaughter performance, blood physicochemical indexes, and rumen diversity of cattle fed with mixed silage of sweet sorghum and corn showed similar or excellent traits.
研究了不同日粮配方的肉牛（安格斯牛与西门塔尔牛）饲料对生产性能、血液生化指标、牛肉品质和瘤胃细菌多样性的影响。以玉米青贮、高粱青贮以及玉米青贮与高粱青贮的混合物为试验材料，比较不同比例饲料的饲喂效果。结果表明，育肥牛饲喂含75%或100%甜高粱（干物质消化率和干物质代谢能）的日粮时，日增重为0.85 - 0.92千克。饲喂50%甜高粱（干物质含量）的牛育肥率为54.78%。各组对牛肉品质和血液生理生化指标均无不良影响。在瘤胃细菌多样性方面，瘤胃液菌群主要包含厚壁菌门和拟杆菌门。普雷沃氏菌属和琥珀酸菌属是瘤胃液细菌已知属中的优势菌群。与单独饲喂玉米青贮的牛相比，饲喂甜高粱与玉米混合青贮的牛的生长性能、屠宰性能、血液理化指标和瘤胃多样性表现出相似或更优的特性。
