渔业现代化2012，Vol.39Issue(2)：48-53,6.DOI:10.3969/j.issn.1007-9580.2012.02.010
投喂频率对斑点叉尾鮰幼鱼生长、饲料利用和鱼体组成的影响
Effect of feeding frequency on growth, feed utilization and whole body composition of juvenile channel catfish( Ictalurus punctatus )
摘要
Abstract
An 8-week growth trial was conducted to investigate the optimal feeding frequency for juvenile channel catfish (Ictalurus punctatus).One experimental diet (38% crude protein,19.0 kJ/g gross energy) was formulated for the fish.Five feeding frequencies were tested: 1 meal/d ( Ml ),2 meals /d ( M2 ),3 meals/d (M3),4 meals/d (M4) and 5 meais/d ( M5).The growth,feed utilization and whole body,composition of the fish were investigated after this period.The results show that feeding rates of fish fed at M2-M4 were significantly higher than those offish fed at Ml and M5 (P <0.05),and the fish fed at M4 obtained the highest value.Fish fed at M3-M5 showed significantly higher specific growth rate than that in fish fed at Ml (P < 0.05),and the fish fed at M3 obtained the highest value.The ADCd of fish fed at M2-M5 were significantly higher than that of fish fed at Ml (P <0.05),ADCp and ADCe of fish fed at M3 and M4 were significantly higher than those of fish fed at Ml and M2 (P <0.05).Fish fed at M3 showed significantly higher dry matter content than those in fish fed at Ml and M2 (P<0.05),while fish fed at M2-M5 showed significantly higher crude protein,crude lipid and energy contents than those in fish fed at Ml (P <0.05).Results of the present study suggest that the optimal feeding frequency was 3 meals /d in the culture of juvenile channel catfish.关键词
投喂频率/饲料利用/鱼体组成/斑点叉尾鮰Key words
feed utilization/whole body composition/Ictalurus punctatus分类
农业科技引用本文复制引用
董桂芳,胡振雄,黄峰,张志平,胡鑫,万祖德..投喂频率对斑点叉尾鮰幼鱼生长、饲料利用和鱼体组成的影响[J].渔业现代化,2012,39(2):48-53,6.基金项目
湖北省教育厅中青年项目(Q20101710) （Q20101710）
武汉工业学院校立项目(2009Q02) （2009Q02）
武汉工业学院2011年大学生创新项目 （）
