机译:荷斯坦奶牛难产期间产科干预的产犊进度和参考时间评估
Department of Veterinary Preventive Medicine, The Ohio State University, Columbus 43210;
Department of Veterinary Preventive Medicine, The Ohio State University, Columbus 43210;
Department of Veterinary Preventive Medicine, The Ohio State University, Columbus 43210;
Department of Veterinary Preventive Medicine, The Ohio State University, Columbus 43210;
Department of Veterinary Preventive Medicine, The Ohio State University, Columbus 43210;
calving management; obstetric intervention; dystocia;
机译:在第一次加州和哺乳期乳房奶牛奶牛奶牛奶牛奶牛奶牛奶牛的年龄与哺乳期和哺乳性能之间的关联,哺乳曲线,钙静脉间间隔,小牛酸性
机译:限制青贮饲料产前对荷斯坦-弗里斯兰奶牛产犊,难产和死产时间的影响
机译:限制青贮饲料产前对荷斯坦奶牛的产犊,难产和死产时间的影响
机译:霍尔斯坦奶牛奶牛母牛产犊人员工作转移转型评估
机译:烟酸和β-胡萝卜素补充剂对奶牛,初乳和犊牛的影响,以及β-胡萝卜素补充对泌乳荷斯坦奶牛的影响
机译:在第一次加州和哺乳期哺乳曲线产犊间隔小牛乳制奶牛的哺乳曲线
机译:限制青贮饲料产前对荷斯坦-弗里斯兰奶牛产犊,难产和死产时间的影响