台湾科技人员给对虾饲喂添加2gβ-1.3-葡聚糖kg日粮或不添加葡聚糖的日粮15天(后期幼体)或10或20天(幼虾)。用浸入攻击处理的后期幼体,用注射白斑综合征病毒(WSSV)攻击处理的幼虾。攻击后,所有饲喂葡聚糖组的初始死亡率都显著低于未处理对照组。在幼虾组,饲喂添加葡聚糖日粮20天比10天更显著提高存活。用WSSV攻击后,4天以后饲喂对照日粮的后期幼体和幼虾全部死亡,6天以后饲喂10天葡聚糖的幼 Taiwanese scientists fed shrimp with either 2 g β-1.3-glucan kg diet or dextran-fed diets for 15 days (late larva) or 10 or 20 days (juvenile shrimp). Treated juvenile shrimp were challenged with white spot syndrome virus (WSSV) by immersion challenge. After challenge, the initial mortality of all dextran fed groups was significantly lower than that of untreated controls. In the juvenile shrimp group, feeding supplemented dextran diet for 20 days increased survival significantly more than 10 days. After challenge with WSSV, all postnatal larvae and juveniles fed the control diet after 4 days died, and 10 days after 6 days of feeding dextran