Physiological rationale for the fatty acid composition of duck meat against the background of the use of larvae of the black soldier fly

The article presents material on the use of larvae of the black soldier fly Hermetia Illucens in feeding ducks in the form of feed additives. Larvae aged 20-21 days were used in dried form and in the form of biomass of native larvae. It was found that the pre-slaughter weight of ducks that received dried larvae was 4.5 % higher; in ducks that consumed the biomass of native larvae, the excess was 5.6% compared to control ducks. In experimental ducks, liver weight increased by 3.8 and 6.0 %; hearts - by 4.1 and 6.0 %; stomach - by 5.1 and 6.4 %; kidneys - right by - 3.7 and 4.9 % and left - by 3.9 and 5.1 %, with the best performance in ducks that received larval biomass in the native form. The use of dried forms of larvae caused an increase in monounsaturated amino acids in the breast: cis-oleic acid by 7.7 %, heneicosenoic acid by 11.1, erucic acid by 5.6 %; in the thigh muscles - cis-oleic acid by 0.7 % compared to control values. When using biomass of the native form of larvae, the composition of saturated acids changed with an increase in the content of lauric acid in the pectoral and thigh muscles by 2.9 and 3.2 times and myristic acid by 1.6 times, compared with the control.