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Saranchuk Ivan, Ph.D., Senior Researcher,
https://orcid.org/0000-0003-4695-7804
Bukovyna State Agricultural Experimental Station of NAAS

DOI https://doi.org/10.32900/2312-8402-2019-122-180-189

Key words: honey bees, feed supplement, fatty acids, queen bees reproductive ability, bees (workers) honey productivity.

Abstract

In the article, the results of experimental trials are presented on connection investigation between fatty acid composition and sorption capacity of honey bees thorax tissues and productive traits at different amount of sunflower oil in feed additive. It is established, that as a result of adding 10 and 20 g of sunflower oil to a feed consisting of defatted natural soy beans flour and sugar syrup, the content of saturated, monounsaturated, and particularly polyunsaturated fatty acids in the feed additive increases dose-dependently – in fatty acid composition of total lipids, as well as in composition of unesterified fatty acids. Feeding on the additive enriched with sunflower oil causes dose-dependent concentration increase of saturated, monounsaturated, and polyunsaturated fatty acids of total lipids in honey bees thorax tissues in І- and particularly ІІ experimental group. Herewith, in thorax tissue of the above-mentioned bees, the correlation of family ω-3 polyunsaturated fatty acids to family ω-6 polyunsaturated fatty acids decreases. Concentration increase of family ω-3 polyunsaturated fatty acids and particularly of ω-6 ones causes the dose-dependent increase of sorption capacity of honey bee thorax tissues in І and especially ІІ experimental groups. Due to this, in honey bees thorax tissues in the experimental group ІІ, there is an increase of ferum, zinc, cuprum, chromium, plumbum, and cadmium concentration. Changes in fatty acids composition and sorption capacity of honey bee thorax tissues in І and especially ІІ experimental groups are accompanied by changes in queen bees reproductive capacity and working bees honey productivity. Particularly, the queen bees oviposition in І and especially ІІ experimental groups increases by 11,9 and 26,4 %, respectively; and the working bees honey productivity increases by 16,9 and 26,6 %, respectively.

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