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Continued Efforts to Demonstrate Use of Black Soldier Fly Meal as Feed in Aquaculture: Today's Study- Atlantic Salmon

2/8/2019

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Over the course of writing for this blog, I have had a few discussion pieces on insect meal as feed for the aquaculture industry. And, a lot of the discussion has revolved around select fish species. One fish produced in massive quantities and of interest to the BSF world is the Atlantic Salmon. 

This paper, which is set to be published "officially" soon is now available online in preprint form. I recommend it as a reading for anyone interested in BSF meal as aquaculture feed. I cannot state this enough times- we need more studies like this one to continue to build support for the insect-farming industry while also making sure BSF meal is an appropriate feed in terms of economics, quality, and safety.

Belghit, I., N. S. Liland, P. Gjesdal, I. Biancarosa, E. Menchetti, Y. Li, R. Waagbø, Å. Krogdahl, and E.-J. Lock. 2018. Black soldier fly larvae meal can replace fish meal in diets of sea-water phase Atlantic salmon (Salmo salar). Aquaculture.

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In this particular study, the authors used a diet ranging from 0 to 100% BSF meal in combination with fishmeal. They authors determined development was not impacted by the inclusion of BSF in the fish diet. Digestibility was similar across diets and fat content was not changed by including BSF meal.

Furthermore, a sensory study (e.g., taste test) of the fillets produced indicated "small" changes.

Odor and color of the fillets was not changed.

Flavor was not changed; however, there was an increase in rancid flavor (not significant). Texture of the salmon fed BSF meal were soft; however, once baked, they were considered harder than the control. 


Overall, a very nice study. The figures included in the paper were quite impressive as well. So, if you have time- check it out.

Author

Jeffery K. Tomberlin, PhD, Fish Consumer
Director, EVO Conversion Systems
​Twitter: @FliesFacility

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