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The purpose of a long-term scientific and industrial study was to determine the prevalence of the symptom complex of chronic inflammatory processes of the organs of the reproductive tract with latent flow among dairy cows (n = 1159) of various dairy breeds kept in the conditions of industrial complexes. Research methods. An innovative methodological approach of complex in vivo gynecological examination was applied using echography (“Tringa vet”) and differential palpation diagnostics with a recording of data on anatomical areas of the reproductive tract “walls and cavity of the uterus – horns of the uterus – fallopian tubes and their potential patency – ovaries”. Based on the results of a comprehensive examination of unfertilized dairy cows, it was established that, on average, chronic latent endometritis was diagnosed in 52.95 ± 12.96 % of females, with fluctuations of 32.15–85.84 % in different herds (P < 0.05). A natural trend of increasing cases of chronic adhesive processes with loss of patency for gametes through the fallopian tube in the tissues in the “fallopian tube-ovary” anatomical region due to the increase in the number of chronic latent endometritis in the herd, namely the average number of salpingitis and ovosalpingitis 13.26 ± 2.27, was established. %, fluctuations ranged from 9.2 to 18.27 %. The use of an innovative lateralized approach to the palpation diagnostics of chronic adhesive lesions of the oviducts allowed for improvement in the prognosis of the effectiveness of the therapy of chronic salpingitis provided that bilateral lesions were detected, which characterize the irreversible infertility of the cow (37.93 ± 9.35 % of cases among all examined cows). The application of differential palpation diagnostics of the ovaries with the use of in vivo data visualization revealed the spread of hypotrophic lesions of the ovaries together with the course of chronic inflammatory pathologies of the uterine tissues (latent endometritis): 54.69 ± 19.80 % of cows were diagnosed with significantly pronounced hypotrophic processes in the functional tissues of the gonads, and 34.87 ± 19.59 % had moderate lesions. Experimental studies have shown a reliable trend of correlations between the spread of chronic latent inflammatory processes in various parts of the reproductive tract of dairy cows and the growth of clinical manifestations of hypotrophic phenomena in ovarian tissues, which gradually lose their generative and hormone-secreting function due to a decrease in cell trophism. The study results showed the need for further comprehensive analysis of the clinical condition of the organs of the reproductive system of dairy cows in vivo conditions.
Sidashova et al. (Sat,) studied this question.