The influence of domain-structured magnetic fields and feed additive "Agromega" on hormonal background and protein content in the blood of sows with s reproductive function stimulation

The researches were conducted in Belgorod Region in the sows of large white + Landrace breed in winter and spring period. The type of feeding of the sows was concentrated, with specialized feed-stuff SPK-2 mixed with water. Average age of the sows was 2.5 years and average live weight of the sow was 250 kg. All the sows were apparently healthy. The piglets weaning was carried out on the 21-st day. The peripheral blood test was done for laboratory research, the blood was taken from ex-ternal vena cava of the sows (n=5): the first test on 7-th day before farrow, the 2-nd test on the 21-st day after farrow, 12 hour after the piglets weaning, the 3-rd test - on the 27-th day after farrow (on the 7-th day after piglets weaning). As a whole 131 sows have been inspected. The feeding of “Agromega” supplement considered to be the source of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) as the most biologi-cally active omega-3 fatty acids in combination with the influence of domain - structured magnetic fields (DSMF) had a stimulating effect on the hormonal background, the level of metabolic processes and on the sows reproductive function. The best results of the stimulating of effect of reproductive function and productive parameters of the sows were shown by the 1-st group, where the DSMP was used once (1-5 days) and “Agromega” supplement was fed during 34 days. 100 % of the sows have been im-pregnated in average in 4.2 days after the piglets weaning. After the stimulation followed by farrow, the productive parameters were also better in the 1-st group of sows, where we got 14.3 piglets with the average weight 1.39 kg from a sow.