以鸡肉粉替代饲料中0％、20％、40％、60％、80％的鱼粉，配制5种等氮等能饲料。选取初始体质量为（22．82±0．08） g的大菱鲆幼鱼180尾，随机分为5组（每组3个重复，每重复12尾）分别投喂一种饲料，试验周期为8周。试验结果表明，鸡肉粉替代鱼粉对大菱鲆幼鱼终末体质量、特定生长率、饲料系数以及质量增加率产生显著影响（P＜0．05）。鸡肉粉替代鱼粉对大菱鲆幼鱼鱼体水分、粗蛋白、灰分、能量含量未造成显著影响（P＞0．05），鸡肉粉替代组粗蛋白含量比对照组略微升高，粗脂肪含量比对照组显著降低（P＜0．05），鸡肉粉替代组之间的粗脂肪含量无显著差异（P＞0．05），但有升高的趋势。鸡肉粉替代40％鱼粉时，血清谷草转氨酶、谷丙转氨酶活力显著高于对照组（ P＜0．05）。鸡肉粉替代鱼粉对肝脏谷丙转氨酶、谷草转氨酶活力影响显著（P＜0．05）。鸡肉粉替代鱼粉对主要营养成分的表观消化率产生显著影响（ P＜0．05）。本试验结果表明，鸡肉粉替代20％的鱼粉对大菱鲆幼鱼生长最为有利。%A study was conducted to evaluate the effects of poultry by‐product meal (PBM ) as the replace‐ment of fish meal in the diets on the growth performance ,body composition of juvenile turbot Scophthal‐mus maximus .One hundred and eighty juvenile turbot with initial body weight of (22 .82 ± 0 .08) g were randomly divided into five groups with three replicates in each group and twelve fish per replicate .During the feeding trial ,fish in five groups were fed one of five experimental diets ,randomly .The results showed that (1) there were significant differences in grow th performance among all treatments fed the experimen‐tal diets (P<0 .05) .(2) There were no significant differences (P>0 .05) in whole‐body proximate com‐position among the treatments fed PBM replacement of fish meal except crude fat w hich significantly de‐creased (P<0 .05) compare with the control group .(3) There were significant differences in liver alanine aminotransferase (ALT) when 80% of fish meal was replaced comparing with control group (P<0 .05) , while the liver glutamic‐oxalacetic tranferase (AST) was significantly affected when fish meal was replaced by 20% of PBM .The serum AST and ALT were significantly affected when fish meal was replaced by 40% of PBM .A significant reduction in apparent digestibility coefficients was observed when PBM was used as partial substitute of fish meal protein (P<0 .05) .The findings indicate that 20% of fish meal can be replaced by PBM without reduction in grow th performance .
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