强俊,王辉,李瑞伟,彭俊

• 1:广东海洋大学水产学院
• 2:广东茂名茂南三高罗非鱼良种基地

摘要(Abstract)：

研究在(28.0±1)℃条件下,5种不同饲喂频率对奥尼罗非鱼(Oreochromis niloticus×O.aureus)仔稚鱼的生长、体成分及几种消化酶活力的影响。结果显示:随着饲喂频率的增加,奥尼罗非鱼仔稚鱼的摄食率和特定生长率逐步提高,1次/d组的摄食率和特定生长率显著低于其他组(P<0.05);2、3、4、5次/d组的相对增重率之间差异不显著(P>0.05),但显著高于1次/d组;各组的饲料转化率随饲喂频率的增加而降低;胃蛋白酶、脂肪酶和淀粉酶活力随饲喂频率的增加而显著降低(P<0.05);各组胰蛋白酶变化差异不明显(P>0.05);随饲喂频率的增加,奥尼罗非鱼仔稚鱼的灰分和蛋白质含量无显著变化(P>0.05);脂肪含量显著上升,水分含量则明显下降(P<0.05)。分析表明,奥尼罗非鱼仔稚鱼最适饲喂频率为3次/d。

关键词(KeyWords)： 奥尼罗非鱼;仔稚鱼;饲喂频率;生长;体成分;消化酶

Abstract:

Keywords:

基金项目(Foundation): 广东省科技计划项目(No.2006B202230017);; 广东省教育部产学研结合项目(No.2008B090500088)

作者(Author): 强俊,王辉,李瑞伟,彭俊

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