本研究旨在通过给围产前期奶牛饲喂不同水平的酵母硒,探讨酵母硒对围产前期奶牛全血硒浓度和血清抗氧化能力的影响,为酵母硒在围产......

采用28头荷斯坦经产牛按配对试验设计研究了添加阴离子盐对奶牛血液离子浓度、胎衣不下发病率及产后6个月泌乳性能的影响.结果表明......

Background:The aim of the study was to investigate the effect of energy overfeeding during the dry period on adipose tis......