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A plant-based diet supplemented with Hermetia illucens alone or in combination with poultry by-product meal:one step closer to sustainable aquafeeds for European seabass

引用

Journal of Animal Science and Biotechnology 2022年第6期13卷 1818-1839页

作者： vana Lepen Pleić ivana Bušelić Maria Messina Jerko Hrabar LukaŽuvić igor talijančić ivaŽužul Tina Pavelin ivana Anđelić Jelka Pleadin Jasna Puizina Leon Grubišić Emilio Tibaldiand TanjaŠegvić-Bubić Laboratory of Aquaculture Institute of Oceanography and FisheriesŠetalište I.Meštrovića 6321000 SplitCroatia Department of Agriculture FoodEnvironmental and Animal SciencesUniversity of UdineUdineItaly Department of Chemistry Faculty of ScienceUniversity of SplitRuđera Boškovića 3321000 SplitCroatia Croatian Veterinary institute Laboratory for Analytical ChemistrySavska Cesta 14310000ZagrebCroatia Department of Biology Faculty of ScienceUniversity of SplitRuđera Boškovića 3321000 SplitCroatia

Background:increasing demand for high-value fish species and pressure on forage fish is challenging aquaculture to ensure sustainable growth by replacing protein sources in aquafeeds with plant and terrestrial animal proteins,without compromising the economic value and quality of the final fish *** the present study,the effects of a plant protein-based diet(CV),two plant-based diets in which graded amounts of plan protein mixtures were replaced with Hermetia illucens meal alone(VH10)or in combination with poultry by-product meal(PBM)(VH10P30),a fishmeal(FM)diet(CF)and an FM diet supplemented with ***(FH10)on growth performance,gut health and homeostasis of farmed subadult European seabass were tested and ***:Fish fed the VH10 and VH10P30 diets showed the highest specific growth rates and lowest feed conversion ratios among the tested ***,the best preservation of Pi morphology was observed in fish fed the CF or FH10 diets,while fish fed the CV diet exhibited significant degenerative changes in the proximal and distal ***,PBM supplementation mitigated these effects and significantly improved all gut morphometric parameters in the VH10P30 *** substitution of the plant mixture with insect meal alone or PBM also induced most BBM genes and activated BBM enzymes,suggesting a beneficial effect on intestinal digestive/absorption *** intestinal microbiota,fish fed diets containing *** meal(FH10,VH10,VH10P30)had the highest richness of bacterial communities and abundance of beneficial genera such as Lactobacillus and *** the other hand,fish fed CV had the highest microbial diversity but lost a significant component of fish intestinal microbiota,the phylum ***,skin pigmentation most similar to that of farmed or even wild seabass was also observed in the fish groups fed CF,FH10 or ***:Plant-based diets supplemented with PBM and *** pupae meal h

关键词： Avian by-product meal Circular economy Dicentrarchus labrax Fitness Growth insect

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