engleski

Fatty acid plasticity of Black Soldier Fly Larvae (Hermetia Illucens) reared on alternative feeding media: crude olive cake and processed animal protein

Our trial was performed to assess the effects of feeding media, consisting of crude olive cake and processed animal protein, on the growth rate and the fatty acid composition of Hermetia illucens larvae. The results showed a significant decrease in length and weight of larvae in all experimental groups compared to the basal diet. The 50% of basal diet, as well as wood shavings, significantly improved the length and weight of BSFL reared in processed animal protein. With the crude olive cake feeding media supplemented with the mineral and vitamin mixture, the growth of the BSFL significantly improved, although it did not attain the results of the basal diet. In comparison to the basal diet, experimental groups were characterized by a decrease in the content of lauric acid and saturated fatty acids, and an increase in the content of oleic acid and monounsaturated fatty acids. An especially high content of MUFA was observable in the crude olive cake group. The polyunsaturated fatty acid content was very low in all groups. In conclusion, with the used alternative feeding media significant plasticity in the fatty acid profile of Hermetia illucens could be achieved.

Black soldier fly, processed animal protein, crude olive cake, fatty acids

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