|
|
|
| Effects of Replacing Fish Meal with Poultry By-product Meal on Growth Performance and Body Composition of Juvenile Turbot Scophthalmus maximus |
| LI Zongsheng,WU Lixin,LI Simeng,PENG Bowen,ZHAO Bowen |
|
|
|
|
Abstract 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 .
|
|
Received: 25 May 2016
|
|
|
|
|
|
|
