Fatty acid composition of black soldier fly maggot were reared in the mixture of laying hen manure with lemuru fish oil

Abstract

Manure can release greenhouse gases and invite the presence of house flies which can harm livestock health and pollute the environment. Maggot black soldier fly can overcome manure problems by converting it into nutrient-rich biomass. The growth and nutrient composition of maggot is influenced by the type of media used as food. In this study, the maggot black soldier fly was given six kinds of feed consisting of a mixture of laying hens manure with the addition of lemuru fish oil which varied 0%, 3%, 6%, 9%, 12%, and 15%. Three weeks old maggot black soldier fly was harvested and the total production was weighed. Maggot meal samples were analyzed for nutrient content and fatty acid composition. The data obtained were analyzed of variance and continued with Duncan's multiple renge test. The results showed that the treatment was highly significant effect on maggot production, weight of 100 maggots, and crude fat content. Mixed feed of laying 61723 ASDBEENhens manure with 12% lemuru fish oil was the best mixture with the highest average production of fresh BSF maggot 1.139.25 g, average maggot weight 0.19 g/maggot, crude fat content 33.87%, linoleic 6.483%, linolenic acid 0.388%, EPA 2.142 %, and DHA 0.049%. It was concluded that the addition of lemuru fish oil into layer chicken manure could enrich the unsaturated fatty acid content of maggot black soldier fly.