Fishmeal Dietary Replacement Up to 50%: A Comparative Study of Two Insect Meals for Rainbow Trout (Oncorhynchus mykiss)
Metadatos
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MDPI
Materia
Black soldier fly Mealworm Fishmeal replacement Rainbow trout Aquaculture Fish nutrition
Fecha
2022-01-12Referencia bibliográfica
Melenchón, F... [et al.]. Fishmeal Dietary Replacement Up to 50%: A Comparative Study of Two Insect Meals for Rainbow Trout (Oncorhynchus mykiss). Animals 2022, 12, 179. [https://doi.org/10.3390/ani12020179]
Patrocinador
‘Instituto Nacional de Investigación Agraria y Alimentaria’ European Regional Development Fund RTA 2015-00021-C03; Agencia Estatal de Investigación-Ministerio de Ciencia e Innovación BES2017-080567 European Social FundsResumen
The demand of optimal protein for human consumption is growing. The Food and Agriculture
Organization (FAO) has highlighted aquaculture as one of themost promising alternatives for this protein
supply gap due to the high efficiency of fish growth. However, aquaculture has been facing its own
sustainability problem, because its high demand for protein has been traditionally satisfiedwith the use of
fishmeal (FM) as themain source. Some of themost promising and sustainable protein substitutes for FM
come frominsects. The presentmanuscript provides insight into an experiment carried out on rainbow trout
(Oncorhynchus mykiss)with a 50%replacement of FMwith different larvae insectmeals: Hermetia illucens (HI),
and Tenebrio molitor (TM). TMshowed better results for growth, protein utilization andmore active digestive
function, supported by intestinal histological changes. Liver histology and intermediarymetabolismdid not
showrelevant changes between insectmeals,while other parameters such as antioxidant enzyme activities
and tissue damage indicators showed the potential of insectmeals as functional ingredients.