Reproduction is a crucial issue at the present stage in the pig husbandry development. Infertility of breeding sows leads to excessive use of feed, increased costs associated with failed inseminations, insufficient breed and early culling of sows. Aim of the research. Study of infertility types and prevention of postpartum diseases in sows in order to develop methods to control them. Methods. A two-stage experiment was carried out in 2019–2020 at the LLC "Ryasnyanske" farm in Sumy region, Ukraine. The first stage involved development of a method for prevention and control of infertility in sows. The second stage focused on the method of postpartum pathology prevention. Results. The conducted research established that surfagon and vitamins manifested the highest efficiency in case of alimentary infertility as they increased fertilization by 20.8 %. In terms of symptomatic infertility, the best results were achieved through a combined use of surfagon and gonadotropic hormone for both primary and multiple fertilization of sows, especially considering extremely low values in the control group - 15 % and 6.5 % of piglets, respectively. Aminazine proved to be the most effective remedy for immune infertility, the obtained results were 17.2 % higher than in the control group. Surfagon at a dose of 5 ml together with estrofan twice a day fully prevented inflammatory postpartum pathologies in sows. Conclusions. Pathologies of the reproductive organs in sows are widespread at pork-producing farms. Individual use of surfagon was justified for treatment of alimentary, symptomatic and immune infertility of sows and prevention of postpartum pathologies. A combined use of tissue therapy and biologically active drugs proved to be the most effective. The treatment regimens described above reduce infertility and prevent postpartum pathologies in sows.
The article presents data on the dynamics of postpartum pathology, which was most often recorded in the form of both their pathologists and as acute postpartum cervicitis . So in 2017, this pathology of the organs of the genital system was diagnosed in 7 animals, which made up 37% of the total number of calving cows, in 2018 a similar figure was 8 cases, which is 42.1%, and in 2019 observed an unprecedented decrease the number of cases of postpartum cervicitis is 7, which is 31.82% of the total number of cows. However, fluctuations in the number of families had pathological tendencies th to increase, but this increase was not statistically significant: in 2017 - 7 cases (35%), in 2018 - 8 (42.1%) in 2019 - 9 (39, 34%). For all reasons, pathologic births most frequently reported a delay: in 2017 - 3 (42.85%), in 2018 - 4 (50%), in 2019 - 3 (33.34%), on average over the three reporting years the figure was 41.67% of the total number of causes of pathological births. As can be seen from the data presented in table 6 in sick animals , on the third day from the beginning of treatment there is a probable increase in the level of total protein in the cows of the experimental group, compared with the indicator for treatment by 6.9% (p <0.01), but its content still remains Lower relative to the level of clinically healthy cows by 5.8% (p <0.01). In the control group, this indicator remained almost unchanged from the pre-treatment index, remaining lower by 12.4% (p <0.001) relative to clinically healthy cows and by 7% (p <0.05) compared to the experimental group. In particular, studies concentration of fibrinogen in the blood plasma of cows with different methods of treatment showed that at the third day of treatment fibrinogen level is reduced compared with the rate before treatment to 14.3% (p <0.001) in the experimental group and incredibly on 5% in the control.
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