在国产鳗鱼饲料中添加稀土甲壳素,可使僵鳗在20天内生长复苏和体色好转,日增长率比对照组提高3.25至4.60倍。正常鳗种摄食稀土甲壳素后,可起到增强体质,促进生长的作用,日增长率比对照组提高22.5～29.0％。在国产饲料中添加1～1.5％的稀土甲壳素,饲料系数在僵鳗可降低69.28％,正常鳗种可降低26.47％,基本上可以取代进口饲料。 Adding rare earth chitin in the domestic eel feed can make the emperor eel grow and recover within 20 days and body color improved daily growth rate 3.25 to 4.60 times higher than the control group. Normal eel species feeding rare earth chitin, can enhance physical fitness and promote growth, the daily growth rate increased 22.5 ~ 29.0% compared with the control group. Adding 1 ~ 1.5% rare earth chitin to domestic feed, feed coefficient can reduce 69.28% in eel, normal eel species can reduce 26.47%, basically can replace imported feed.