１引言 饵料是海水鱼种苗培育的关键因素之一．迄今，在海水鱼早期发育的特定阶段，配合饲料还无法替代活饵料，虽然早在仔鱼开口期就已能检测到大多数消化酶的存在，有些笔者认为仔鱼不能利用配合饲料是因为消化酶活性低［1］2］，而活饵料体内的消化酶能弥补这种不足［3，4］ 1 Introduction Bait is one of the key factors in the cultivation of marine fish seedlings. To date, the feed has not been able to replace live feed at specific stages of the early development of marine fish, although most digestive enzymes have been detected as early as the larvae ’s opening. Some authors believe that larvae can not utilize compound diets because of their digestive enzyme activity Low [1] 2], while live bait digestive enzymes can make up for this deficiency [3,4]