Growth performance and fatty acids profile of common carp fed with raw black soldier fly larvae and honey bee drone brood
In: Journal of Insects as Food and FeedUniversity of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, Na Sádkách 1780, 370 05 České Budějovice, Czech Republic
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Albrecht Daniel Thaer-Institute, Faculty of Life Sciences, Humboldt-University of Berlin, Invalidenstraße 42, 10115 Berlin, Germany
Department of Endocrinology, Institute of Biology, Faculty of Life Sciences, Humboldt-University of Berlin, Unter den Linden 6, 10099 Berlin, Germany
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Abstract
The present study aimed to compare the growth performance and liver and muscle fatty acid (FA) profile of juvenile common carp fed with raw black soldier fly (BSFL; Hermetia illucens) and honey bee drone brood (BDB; Apis mellifera), a novel insect in aquaculture, with a commercial carp diet (CCF). After 6 weeks, the weight gain and specific growth rate were significantly higher in fish fed with CCF, followed by the BDB-fed and BSFL-fed fish, with significant differences among groups. The essential FA contents in feeds were disproportionally mirrored in fish livers and muscles, suggesting feed-dependant biosynthesis ability in common carp. In conclusion, the results suggest that dietary FAs affect the muscle FA composition of common carp. Yet, the composition of dietary essential FAs content did not mirror the essential FA content in muscle, confirming the biosynthesis of essential FAs. The BDB appeared to be a viable alternative or supplement to CCF compliant with circular bioeconomy without compromising the FA profile of common carp muscles. Despite the low growth performance of fish fed with BSFL, this diet indicated good nutritional qualities regarding the FA profiles.
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Growth performance and fatty acids profile of common carp fed with raw black soldier fly larvae and honey bee drone brood
In: Journal of Insects as Food and FeedUniversity of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, Na Sádkách 1780, 370 05 České Budějovice, Czech Republic
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Albrecht Daniel Thaer-Institute, Faculty of Life Sciences, Humboldt-University of Berlin, Invalidenstraße 42, 10115 Berlin, Germany
Department of Endocrinology, Institute of Biology, Faculty of Life Sciences, Humboldt-University of Berlin, Unter den Linden 6, 10099 Berlin, Germany
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Abstract
The present study aimed to compare the growth performance and liver and muscle fatty acid (FA) profile of juvenile common carp fed with raw black soldier fly (BSFL; Hermetia illucens) and honey bee drone brood (BDB; Apis mellifera), a novel insect in aquaculture, with a commercial carp diet (CCF). After 6 weeks, the weight gain and specific growth rate were significantly higher in fish fed with CCF, followed by the BDB-fed and BSFL-fed fish, with significant differences among groups. The essential FA contents in feeds were disproportionally mirrored in fish livers and muscles, suggesting feed-dependant biosynthesis ability in common carp. In conclusion, the results suggest that dietary FAs affect the muscle FA composition of common carp. Yet, the composition of dietary essential FAs content did not mirror the essential FA content in muscle, confirming the biosynthesis of essential FAs. The BDB appeared to be a viable alternative or supplement to CCF compliant with circular bioeconomy without compromising the FA profile of common carp muscles. Despite the low growth performance of fish fed with BSFL, this diet indicated good nutritional qualities regarding the FA profiles.
