摘要
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。
RECT added in domestic-made eel' s feed can make ossified eel resuscitate and regain normal colour within 20 days. Daily growth rate is 2. 25 to 3. 6 times higher than contrast groups. For normal eels RECT can strengthen its risis-tance to diseases and accelerate its growth. Daily growth rate is 22. 5 to 29. 0 precent higher than contrast groups. What's more RECT additive put in domtstis-made feed can make coefficient of feed decrease by 69. 28 percent for ossified eel and 26. 47 percent for normal eel. On the whole RECT additive can make domestic - made eel's feed replace imported feed.
出处
《水产养殖》
CAS
1994年第5期21-23,共3页
Journal of Aquaculture
关键词
稀土甲壳素
鳗鱼
日增长率
饲料
Rare-earth chitin Eel Daily growth rate Coefficient of feed
