Lipid metabolism requires constant monitoring and correction in sows to ensure high productivity. The purpose of the study was to determine the relative content of unsaturated fatty acids in the blood plasma lipids of sows considering the complex effect on the body of the status of vegetative regulation and the use of iron and germanium nanoaquachelates. Three groups of sows with 10 units each were formed using a variational and pulsometric study: normotonics, sympathotonics, and vagotonics. In turn, each of the groups was divided into control and experimental, the animals of the latter were fed iron nanoaquachelates at a dose of 3 mg/day and germanium – 0.01 mg/day for each animal for 60 days. Plasma lipid fatty acids were studied by gas chromatography using a Trace GC Ultra gas chromatograph (USA). It was established that in normotensive sows fed iron and germanium nanoaquachelates, the most pronounced increases in relative content were observed for linolenic acid (1.7-fold), cis-11,14-eicosadienoic acid (1.4-fold), cis-11,14,17-eicosatrienoic acid (1.7-fold), and docosadienoic acid (1.4-fold) compared with the control. In sympathotonic sows of the experimental group, similar trends were shown in relation to a 1.4-fold increase in the relative content of palmitoleic acid, linolenic acid, cis-8,11,14-eicosatrienoic acid, cis-11,14,17-eicosatrienoic acid compared to the control. In vagotonic sows of the experimental group, a significant increase in the relative content was recorded in relation to linolenic acid by 1.6 times and cis-11.14-eicosadienic acid by 1.4 times compared to the corresponding control. The effectiveness of a feed additive in the form of nanoaquachelates on the content of unsaturated fatty acids was ensured by distributing sows in accordance with the influence of autonomous regulation, which will further contribute to the development of methods for correcting lipid metabolism in highly productive animals
pig breeding; lipids; autonomic nervous system; feed additive; minerals