Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality

A protein gap exists within the supply of fish feed ingredients due to intensifying global aquaculture production and demands. This is distinctly acute in salmonid farming where protein requirements are higher to other aquatic farmed species. In pursuit of a viable alternative, an eight-week feeding...

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Autores principales:	C.M. Bolton, N. Muller, J. Hyland, M.P. Johnson, C. Souza Valente, S.J. Davies, A.H.L. Wan
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Black soldier fly Rainbow trout Fish meal replacement Exogenous enzymes Protease Fillet quality Agriculture (General) S1-972 Nutrition. Foods and food supply TX341-641
Acceso en línea:	https://doaj.org/article/60efff42e37746d087b3a27b5772e51d
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spelling	oai:doaj.org-article:60efff42e37746d087b3a27b5772e51d2021-11-24T04:34:33ZBlack soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality2666-154310.1016/j.jafr.2021.100232https://doaj.org/article/60efff42e37746d087b3a27b5772e51d2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666154321001344https://doaj.org/toc/2666-1543A protein gap exists within the supply of fish feed ingredients due to intensifying global aquaculture production and demands. This is distinctly acute in salmonid farming where protein requirements are higher to other aquatic farmed species. In pursuit of a viable alternative, an eight-week feeding trial was conducted to evaluate the feasibility of including reared black soldier fly (BSF, Hermetia illucens) larvae into rainbow trout (Oncorhynchus mykiss) diets. Five diets were formulated: a fish meal-based basal diet (CTRL), two diets of BSF incorporation at 15 and 30% (BSF15; BSF30), and two diets at the same incorporation level with the addition of a supplementary protease enzyme (BSF15P; BSF30P) assigned to test potential dietary enhancement. No significant growth performance between the dietary treatments was observed. The fish condition factor in BSF30 was higher than BSF30P (P=0.025). Fillets showed increased muscle yellowness as dietary BSF increased (P=0.004). Trout fed BSF displayed significantly lower lipid peroxidation post-harvest (P < 0.001), with the level of malondialdehyde decreasing with increased dietary BSF, regardless of protease inclusion. BSF meal elevated the saturated fatty acid content of fillets significantly (P < 0.001) while monounsaturated fatty acids decreased (P < 0.001). BSF protease treatments elevated the total concentration of protein in the trout body content, reflecting potentially improved protein utilisation efficiency. BSF diet with protease inclusion is a feasible protein and energy concentrate to replace fish meal in rainbow trout diets up to 30%, without negative effects on the growth, proximate composition, fatty acid profile, lipid peroxidation and fillet colour stability of rainbow trout.C.M. BoltonN. MullerJ. HylandM.P. JohnsonC. Souza ValenteS.J. DaviesA.H.L. WanElsevierarticleBlack soldier flyRainbow troutFish meal replacementExogenous enzymesProteaseFillet qualityAgriculture (General)S1-972Nutrition. Foods and food supplyTX341-641ENJournal of Agriculture and Food Research, Vol 6, Iss , Pp 100232- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Black soldier fly Rainbow trout Fish meal replacement Exogenous enzymes Protease Fillet quality Agriculture (General) S1-972 Nutrition. Foods and food supply TX341-641
spellingShingle	Black soldier fly Rainbow trout Fish meal replacement Exogenous enzymes Protease Fillet quality Agriculture (General) S1-972 Nutrition. Foods and food supply TX341-641 C.M. Bolton N. Muller J. Hyland M.P. Johnson C. Souza Valente S.J. Davies A.H.L. Wan Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality
description	A protein gap exists within the supply of fish feed ingredients due to intensifying global aquaculture production and demands. This is distinctly acute in salmonid farming where protein requirements are higher to other aquatic farmed species. In pursuit of a viable alternative, an eight-week feeding trial was conducted to evaluate the feasibility of including reared black soldier fly (BSF, Hermetia illucens) larvae into rainbow trout (Oncorhynchus mykiss) diets. Five diets were formulated: a fish meal-based basal diet (CTRL), two diets of BSF incorporation at 15 and 30% (BSF15; BSF30), and two diets at the same incorporation level with the addition of a supplementary protease enzyme (BSF15P; BSF30P) assigned to test potential dietary enhancement. No significant growth performance between the dietary treatments was observed. The fish condition factor in BSF30 was higher than BSF30P (P=0.025). Fillets showed increased muscle yellowness as dietary BSF increased (P=0.004). Trout fed BSF displayed significantly lower lipid peroxidation post-harvest (P < 0.001), with the level of malondialdehyde decreasing with increased dietary BSF, regardless of protease inclusion. BSF meal elevated the saturated fatty acid content of fillets significantly (P < 0.001) while monounsaturated fatty acids decreased (P < 0.001). BSF protease treatments elevated the total concentration of protein in the trout body content, reflecting potentially improved protein utilisation efficiency. BSF diet with protease inclusion is a feasible protein and energy concentrate to replace fish meal in rainbow trout diets up to 30%, without negative effects on the growth, proximate composition, fatty acid profile, lipid peroxidation and fillet colour stability of rainbow trout.
format	article
author	C.M. Bolton N. Muller J. Hyland M.P. Johnson C. Souza Valente S.J. Davies A.H.L. Wan
author_facet	C.M. Bolton N. Muller J. Hyland M.P. Johnson C. Souza Valente S.J. Davies A.H.L. Wan
author_sort	C.M. Bolton
title	Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality
title_short	Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality
title_full	Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality
title_fullStr	Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality
title_full_unstemmed	Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality
title_sort	black soldier fly larval meal with exogenous protease in diets for rainbow trout (oncorhynchus mykiss) production meeting consumer quality
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/60efff42e37746d087b3a27b5772e51d
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Black soldier fly larval meal with exogenous protease in diets for rainbow trout (Oncorhynchus mykiss) production meeting consumer quality

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