Feasibility of Partial Replacement of Fishmeal with Proteins from Different Sources in Diets of Korean Rockfish(Sebastes schlegeli)  

作　　者：YAN Quangen ZHU Xiaoming YANG Yunxia HAN Dong XIE Shouqi 

机构地区：[1]Institute of Hydrobiology,The Chinese Academy of Sciences [2]State Key Laboratory of Freshwater Ecology and Biotechnology [3]University of Chinese Academy of Sciences

出　　处：《Journal of Ocean University of China》2014年第6期1054-1060,共7页中国海洋大学学报（英文版）

基　　金：funded by National Key Basic Research Program (2009CB118702);partly by the Knowledge Innovation Program of the Chinese Academy of Sciences

摘　　要：An 8-week feeding experiment was conducted in an indoor recirculation seawater system to investigate the effects of partial replacement of dietary fishmeal with proteins from five sources on the growth performance and feed utilization of Sebastes schlegeli. Six isonitrogenous and isoenergetic diets were formulated using fishmeal(FM, the control) as sole protein source, or proteins from five sources including poultry by-product meal(PBM), meat and bone meal(MBM), soybean meal(SBM), cottonseed meal(CSM) and canola meal(CNM). Fifteen percent of the crude protein provided by fish meal was replaced, respectively. The results showed that the differences in specific growth rate(SGR) and survival rate(SR) among fish fed PBM, MBM, SBM, CSM and whole FM diets were not significant. However, SGR and SR of fish fed CNM diet was significantly lower than that of other treatments. Feeding rate, feed conversion, nutrient retention showed similar patterns to that of growth. Fish fed CSM and CNM showed significantly lower apparent digestibility coefficient(ADC) of dry matter and gross energy than those fed others while fish fed CNM showed lower ADC of crude protein than those fed others(P<0.05). These results suggested that it was feasible to substitute 15% dietary protein provided by fishmeal with PBM, MBM, SBM and CSM, respectively, but not with CNM as the replacement with CNM reduced fish growth and feed utilization.An 8-week feeding experiment was conducted in an indoor recirculation seawater system to investigate the effects of partial replacement of dietary fishmeal with proteins from five sources on the growth performance and feed utilization of Sebastes schlegeli. Six isonitrogenous and isoenergetic diets were formulated using fishmeal （FM, the control） as sole protein source, or proteins from five sources including poultry by-product meal （PBM）, meat and bone meal （MBM）, soybean meal （SBM）, cottonseed meal （CSM） and canola meal （CNM）. Fifteen percent of the crude protein provided by fish meal was replaced, respectively. The re- sults showed that the differences in specific growth rate （SGR） and survival rate （SR） among fish fed PBM, MBM, SBM, CSM and whole FM diets were not significant. However, SGR and SR of fish fed CNM diet was significantly lower than that of other treat- ments. Feeding rate, feed conversion, nutrient retention showed similar patterns to that of growth. Fish fed CSM and CNM showed significantly lower apparent digestibility coefficient （ADC） of dry matter and gross energy than those fed others while fish fed CNM showed lower ADC of crude protein than those fed others （P〈0.05）. These results suggested that it was feasible to substitute 15% dietary protein provided by fishmeal with PBM, MBM, SBM and CSM, respectively, but not with CNM as the replacement with CNM reduced fish growth and feed utilization.

关 键 词：replacement  fishmeal  protein source  growth performance  feed utilization  Sebastes schlegeli 

分 类 号：S965.334[农业科学—水产养殖]