Abstract

Chironomus larvae are a valuable source of not only proteins, lipids, carbohydrates, vitamins, bad and minerals. For chemical research, larvae were grown in artificial conditions, where the nutrient medium based on silt from the Ros river contained a weed of sunflower seeds. The research was conducted in the conditions of the Research Institute of Food Technologies and Livestock Products Processing Technologies of BNAU and SSRKI of veterinary preparations and feed additives (Lviv). The content of Ammonium, Potassium, Sodium, Magnesium, Calcium, Sulfur, Phosphorus in dry biomass of the Chironomus larva was determined using capillary electrophoresis according to the methodology presented in the reccomendations edited by I.Ya. Kotsiumbas. It was found that dry biomass of Chironomus larvae is a source of Amonium, with an average content – 2,18 %, Potassium – 7,63 %, Sodium 8,55 %, Magnesium 3,85 %, Calcium 15,6 %, Sulfur 2,38 %, Phosphorus – 0,05 % of dry matter. In quantitative terms, Natrium took second place among the elements studied. 10,7% less of Potassium was detected compared to Sodium. Potassium content was twice as low as that of Calcium in Chironomus larvae biomass. Four times less of Magnesium was detected in the Chironomus larvae biomass compared to Calcium. Proved that Sulfur content maked 2,38% of dry matter, the element comtent was 6.6 times lower as compared to the Calcium. Ammonium comtent was lower than that for the previous elements, it ranked sixth. Compared to Calcium, the element content was 7,2 times lower. Phosphorus index in the dry biomass of the Chironomus larva did not show the peak but was within 0,05%. This element amount was found to be the lwest in the Chironomus larvae biomass. Thus, the most among the investigated elements in the dry biomass of Chironomus larvae was Calcium 15,6 %, and the least Phosphorus it was within 0,05 %.

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