Monitoring the spread of leptospirosis agent as one of the reasons of low-quality milk

Ruslan Zaritskyi; Yurii Zhuk; Vitalii Kovpak; Serhii Derkach; Yurii Masalovych; Valerii Mazur; Ivan Cheverda; Nataliіa Svyrydenko; Ihor Drachuk; Vitalii Zhurenko

doi:10.5219/1918

Authors

Ruslan Zaritskyi National University of Life and Environmental Sciences of Ukraine, Department of Obstetrics, Gynecology, and biotechnology of animal reproduction, Polkovnyka Potiekhina Str., 16, 03121, Kyiv, Ukraine https://orcid.org/0000-0003-1074-3118
Yurii Zhuk National University of Life and Environmental Sciences of Ukraine, Department of Obstetrics, Gynecology, and biotechnology of animal reproduction, Vystavkova Str., 16, 03121, Kyiv, Ukraine https://orcid.org/0000-0002-8827-6313
Vitalii Kovpak National University of Life and Environmental Sciences of Ukraine, Department of Obstetrics, Gynecology, and biotechnology of animal reproduction, Vystavkova Str., 16, 03121, Kyiv, Ukraine https://orcid.org/0000-0003-2419-1246
Serhii Derkach National University of Life and Environmental Sciences of Ukraine, Department of Obstetrics, Gynecology and biotechnology of animal reproduction, Vystavkova Str., 16, 03121, Kyiv, Ukraine https://orcid.org/0000-0002-6174-1377
Yurii Masalovych National University of Life and Environmental Sciences ofUkraine, Department of Obstetrics, Gynecology, and biotechnology of animal reproduction, Vystavkova Str., 16, 03121, Kyiv, Ukraine https://orcid.org/0000-0002-0986-0854
Valerii Mazur National University of Life and Environmental Sciences of Ukraine, Department of Obstetrics, Gynecology and biotechnology of animal reproduction, Vystavkova Str., 16, 03121, Kyiv, Ukraine https://orcid.org/0000-0002-1311-9882
Ivan Cheverda National University of Life and Environmental Sciences of Ukraine, Department of Obstetrics, Gynecology and biotechnology of animal reproduction, Vystavkova Str., 16, 03121, Kyiv, Ukraine
Nataliіa Svyrydenko National University of Life and Environmental Sciences of Ukraine, Department Genetics, Breeding and Biotechnology of Animals, Workplace address: 03041, Kyiv, Horihuvatskyi path str., 19, 03041, Kyiv, Ukraine
Ihor Drachuk National University of Life and Environmental Sciences of Ukraine, Faculty of Food Technologies, Department of Technology of meat, fish, and seafood, 16 Vystavkova str., 03041, Kyiv, Ukraine
Vitalii Zhurenko National University of Life and Environmental Sciences of Ukraine, Faculty of Veterinary Medicine, Department of Biochemistry and Physiology of Animals named after Academician M. F. Gulyi, 16 Vystavkova str., 03041, Kyiv, Ukraine

DOI:

https://doi.org/10.5219/1918

Keywords:

cattle, Leptospira Hardjo, antibodies, diagnosis, enzyme-multiplied immunoassay

Abstract

On the global scale of the zoonoses problem, leptospirosis is among the five diseases that pose the greatest threat to humankind today. Leptospirosis is a worldwide zoonotic disease caused by pathogenic Leptospira species. In general, leptospirosis has been registered in more than 150 species of mammals. There are about 300 serovars of Leptospira spp. Serovar Hardjo is one of the most common causes of leptospirosis among cattle globally. In cows, the infection can be completely asymptomatic or cause abortions, stillbirths, infertility, and mastitis. The study's relevance is determined by the negative impact on the economy – productivity loss, and high cost of medical-preventive activities. Leptospirosis also affects humans. In this regard, the present study aimed to determine the prevalence of antibodies to Leptospira interrogans serovar Hardjo in tank milk samples from cows selected from farms in different regions of Ukraine. The method of indirect enzyme-multiplied immunoassay was used for this problem to be investigated. We have investigated 114 tank samples from 66 Ukrainian farms, 63.2% positive, and 36.8% negative. It was established that antibodies to the causative agent of leptospirosis were recorded in different regions of Ukraine. It has been established that the largest number of positive samples was from Kyiv and Cherkasy regions. Our study results complement the study results of other authors and indicate the circulation of this causative agent among the cows in Ukraine, as well as being of practical value for diagnosing and controlling leptospirosis among the cattle.

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