【摘要】 猪细小病毒油佐剂灭活苗对后备母猪免疫后的效果表明，免疫组比不免疫组头胎产活仔提高六点五九个百分点，隐性流产有所控制。从而说明，不论是猪细小病毒阳性猪场还是隐性猪场，都有必要对后备母猪全面开展灭活苗的人工免疫。更多还原

【Abstract】 The experiment was made at a pig farm,in which Porcine Parvovius Discasce(PPV)had beenoccured.The immune effect by inoculating with PPV inactivated vaccine on the gilt has been concludc, the resultshowed that average uf pigs reared per gilt of immune group inereased 6.5%more then the control.Therefore giltis mecessary to immune with PPV inactivated vaccine.更多还原