Authors: Rawski M., Mazurkiewicz J., Kierończyk B., Józefiak D.

Publications: Animals

https://doi.org/10.3390/ ani11030604

The practical use of alternative feed materials must be both sustainable and profitable. Therefore, the aim of this study was to assess the impact of black soldier fly full-fat larvae meal (BSFL) on environmental and economic aspects as well as gastrointestinal tract (GIT) development in Siberian sturgeon nutrition. The experimentally obtained data were used for calculations of fish meal (FM) and fish oil (FO) relative usage per kg of fish gain. The economic conversion ratio and profitability per unit of fish gain were assessed also. The samples of intestinal and liver tissues were analysed in terms of villi height, width, and surface, and liver health. The study showed a high potential of BSFL usage up to its highest used incorporation that was 30% of the diet. The environmental sustainability of the diets was increased not only by the reduction in FM and FO use but also by the increase in feed conversion efficiency. Thus, even though the price of BSFL was higher than FM and FO, the profitability of fish production was improved, finding its optimum at the levels of 10% and 15% BSFL incorporation. Moreover, health beneficial effects of BSFL were observed in alterations of GIT development.

Hipromine

Łączymy zrównoważoną, bliską naturze hodowlę owadów z nowoczesną technologią. Wprowadzając na rynek alternatywne dla tradycyjnego białko bezkręgowców, realizujemy misję ograniczenia marnotrawstwa żywności, ograniczając degradację środowiska.

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