• L. V. Nahorna Sumy National Agrarian University, 160, G. Kondatiev Str., Sumy, 40021, Ukraine
  • V. I. Risovaniy Sumy National Agrarian University, 160, G. Kondatiev Str., Sumy, 40021, Ukraine


The article presents data on the establishment of the spread of dictyocaulosis of cattle in farms of different production facilities of Sumy region. According to researchers, a prominent place among the pulmonary helminthiasis of domestic and wild ruminants belongs to dictyocaulosis. Currently, nematodes are an unresolved problem in cattle farms. The work was performed during 2019 on the basis of the laboratory of the Department of Epizootology and Parasitology of Sumy National Agrarian University, as well as in the conditions of livestock farms of Sumy region, which specialize in the production of marketable milk. Feces were collected from animals systematically throughout the year in different seasons, followed by their study by standardized methods of Berman and Orlov. The intensity of the invasion was determined by counting the number of larvae in 1 g of feces at low magnification. Determination of the intensity of contamination of environmental objects by dictyocaul larvae was performed using the method of M.O Romanenko.

In the course of research and analysis of statistical reporting, it was found that dictyocaulosis is one of the three most common invasive diseases diagnosed in cattle in Sumy region. It has been proven that the frequency of diagnosing cases of respiratory pathology of various etiologies has increased in livestock farms that are unfavorable for dictyocaulosis. A clear seasonal dynamics of dictyocaulosis in livestock of different age categories was established: in calves under one year of age, the maximum lesion of Dictyocaulus viviparus was registered in June, with an invasion extent of 69.21%. In calves under two years of age, dictyocaulosis was registered in spring and autumn (the extent of invasion in April was 62.1%, in late September-early October - 51.4%). In a study of cattle older than two years, the highest extent of dictyocaulous invasion was found in spring and autumn, respectively, 59.7% and 35.1%. The peak of the outbreak was recorded in late autumn, in contrast to the animals of younger age categories. The highest intensity of infestation is found in calves under one year of age in summer, in older age groups - in autumn. When determining the contamination of environmental objects with larvae of Dictyocaulus viviparus, the highest rates were observed on the vegetation of pastures, near water sources with insufficient levels of insolation. Contamination by larvae of Dictyocaulus viviparus of the surface layers of soil and water sources on pastures was lower and amounted to 52.5 and 32.5 %, respectively.


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How to Cite
Nahorna, L. V., & Risovaniy, V. I. (2020). DISTRIBUTION OF DICTIOCAULOSIS OF CATTLE IN COMMODITY FARMS OF SUMY REGION . Scientific and Technical Bulletin оf State Scientific Research Control Institute of Veterinary Medical Products and Fodder Additives аnd Institute of Animal Biology, 21(1), 135-140. https://doi.org/10.36359/scivp.2020-21-1.17