Defatted black soldier fly (Hermetia illucens) in pikeperch (Sander lucioperca) diets: Effects on growth performance, nutrient digestibility, fillet quality, economic and environmental sustainability  

作　　者：Vlastimil Stejskal Hung Quang Tran Markéta Prokesová Mahyar Zare Tatyana Gebauer Tomas Policar Christian Caimi Francesco Gai Laura Gasco 

机构地区：[1]University of South Bohemia in Ceske Budejovice,Faculty of Fisheries and Protection of Waters,South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses,Husova tr.458/102,37005 CeskéBudějovice,Czech Republic [2]University of Torino,Department of Agricultural,Forest and Food Sciences,Largo P.Braccini 2,10095 Grugliasco,Italy [3]National Research Council,Institute of Sciences of Food Production,Largo P.Braccini 2,10095 Grugliasco,Italy

出　　处：《Animal Nutrition》2023年第1期7-19,共13页动物营养（英文版）

基　　金：This study was supported financially by the Ministry of Agriculture of the Czech Republic by the NAZV project(grant number QK1810296);This JU-IAPW research paper is part of a project that has received funding from the European Union’s Horizon 2020 research and innovation programme(grant agreement No 652831[AQUAEXCEL2020]);the TNA project ID number:AE070026.

摘　　要：The use of insect meal in aquafeed formulations has recently gained attention.Detailed knowledge about the inclusion levels for pikeperch(Sander lucioperca),a promising candidate for intensive aquaculture in Europe remains,however,fragmented.In the present study,4 isoproteic(45%dry matter)and isoenergetic(21 MJ/kg)diets were formulated,including a control diet(H0)containing 30%fishmeal(FM)on an as-fed basis and the other 3 diets in which FM protein was replaced by defatted black soldier fly(Hemetia illucens)meal(HIM)at 25%,50%,and 100%(diet abbreviation H9,H18 and H36,corresponding to an inclusion level of 9%,18%and 36%,respectively).The feeding trial was performed in triplicate groups of 50 juvenile pikeperch(mean weight,68.7 g)fed with experimental diets for 84 d during which the growth performance,nutrient digestibility,fillet quality and economic and environmental sustainability of rearing pikeperch were evaluated.Our findings indicated that pikeperch in H0,H9,and H18 groups displayed better results regarding growth performance indices,except for survival rate where no significant difference among groups was recorded(P?0.642).A significantly lower organ-somatic index,including hepatosomatic,viscerosomatic and perivisceral fat index,was found in fish in H18 groups than other groups(P<0.05).Inclusion of HIM affected the digestibility of the nutrients and resulted in an almost linear reduction in the apparent digestibility coefficient of dry matter and protein.Concerning the fillet quality,dietary HIM negatively affected the protein and ash contents of the fish fillets,while the crude fat remained unchanged.Dietary HIM did not significantly modify total saturated,monounsaturated and polyunsaturated fatty acids in the fillets of fed pikeperch(P>0.05)but did reduce total n-3 fatty acids(P?0.001)and increased total n-6(P<0.001).Increasing inclusion levels of HIM reduced the environmental impacts associated with fish in-to-fish out ratio but entailed heavy burdens on energy use and eutrophication.Low and moderate in

关 键 词：Alternative feed DIGESTIBILITY Fish in-to-fish out ratio Insect meal Percids Sustainability 

分 类 号：S917[农业科学—水产科学]