The TGE and PED live vaccine were diluted by a new diluent and PBS separately,then newborn pigs were immunized with the identical dose,The results proved that the group of new diluent had higher antibody titer than the PBS group,It suggested that the new diluent could obviously improve antibody titer and enhanced immune effect,which was recommended to be mixed with the vac-cine.% 利用新型稀释液和PBS分别对猪传染性胃肠炎（TGE）-流行性腹泻（PED）二联活疫苗进行稀释，相同剂量免疫仔猪，在不同天数后采集血清测定中和效价。结果显示：两个试验组其TGE和PED中和抗体效价均在21日达到峰值。采用PBS稀释组TGE和PED中和抗体峰值效价分别为1：128和1：112；采用13115稀释液组TGE和PED中和抗体峰值效价分别为1：413和1：304，是PBS组的3倍左右。试验说明猪传染性胃肠炎-流行性腹泻二联活疫苗在不利用新型稀释液的情况下已能达到较好的免疫效果，而在利用新型稀释液后，效果增强更加明显，而且时间更短。故在应用猪传染性胃肠炎-流行性腹泻二联活疫苗时推荐与新型稀释液搭配使用。
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