Study of etiology and pathogenesis of acute postnatal endometritis of bacterial and bacterial-mycosis etiology in cows

DOI 10.33861/2071-8020-2021-4-16-18

Novikova E.N., Shevchenko A.N., Skorikov A.V.

Summary. The article presents research data to clarify the main etiological factors of the emergence of acute postpartum endometritis of bacterial and bacterial-mycotic etiology and the mechanism of its occurrence. According to the data obtained, the main etiological factor in the occurrence of nonspecific acute postpartum endometritis is bacterial microflora and fungi. E. coli (30%), C. albicans (18%), à- and â-hemolytic streptococci (15%), S. aureus (10.4%) are most often isolated from cows with endometritis. Monocultures were isolated in 61.7%, associations of microorganisms - 39.3%, including associations of microorganisms with fungi were isolated in 24.6%. The most frequently (2537.5%) associations were recorded: E. coli + K. pneumonia + S. aureus, E. coli + K. cryocrescens + E. agglomerans, P. mirabilis + K. cryocrescens, E. coli + C. albicans, K. pneumonia + C. albicans. The predisposing factors for the development of endometritis is a violation of the technology of keeping and feeding, leading to a decrease in the natural resistance of animals, as a result of which favorable conditions arise for reproduction and pathological effects of bacterial and fungal microflora that penetrates into the birth canal after calving. When studying the mechanism of the emergence and development of endometritis of bacterial-mycotic etiology in 2 series of acute experiments conducted on white outbred rats, it was found that when microflora enters the genital tract of pregnant animals, endometritis does not develop, but occurs only if microflora enters after childbirth.

Keywords: large horned cattle, cows, calving, acute postpartum endometritis, etiology, pathogenesis, microflora, association of microorganisms, bacteria, fungi.

References:

1. Koba I.S., Al'-Ravashdekh O.O.A.M. Razrabotka i primenenie novogo preparata dlya lecheniya endometrita u korov [Development and application of the new drug for the treatment of endometritis in cows]. - Issues of Legal Regulation in Veterinary Medicine. - Saint-Petersburg, 2020 (1). - pp. 138-140.

2. Kolchina A.F., Barkova A.S., Serebritskiy P.M. Povyshenie effektivnosti diagnostiki zabolevaniy matki vospalitelnogo kharaktera u korov [Improving the efficiency of diagnosis of inflammatory diseases of the uterus in cows]. - 2013: 108-111.

3. Nezhdanov A.G., Safonov V.A., Ventsova I.Yu. Patogeneticheskoe znachenie okislitelnogo stressa v proyavlenii patologii beremennosti i poslerodovykh metra-ovariopatiy u molochnykh korov [Pathogenetic significance of oxidative stress in the manifestation of pathology of pregnancy and postpartum meter-ovariopathies in dairy cows]. - Vestnik Voronezhskogo gosudarstvennogo agrarnogo universiteta. - Voronezh, 2016 (4 (51)). - pp. 61-68.

4. Nikolaev S.V., Konopeltsev I.G., Blednykh L.V. Rasprostranennost i formy ginekologicheskoy patologii u korov v selskokhozyaystvennykh predpriyatiyakh Kirovskoy oblasti i Respubliki Komi [Prevalence and forms of gynecological pathology in cows in agricultural enterprises of Kirov region and Komi Republic]. - 2017: 49-51.

5. Nikolaev S.V., Konopeltsev I.G. Sostav mikroorganizmov i ikh chuvstvitelnost k antimikrobnym sredstvam pri ostrom vospalenii matki u korov-pervotelok [The composition of microorganisms and their sensitivity to antimicrobial agents in acute inflammation of the uterus in first-calf cows]. - 2016: 34-39.

6. Pigarev G.P., Pavlenko O.B., Dolzhenkov Yu.A. Selen i ego soedineniya v profilaktike akusherskikh bolezney u korov [Selenium and its compounds in the prevention of obstetric diseases in cows]. - Aktualnye problemy sovremennoy veterinarii. - Krasnodar, 2011 (2). - pp. 208-211.

7. Skorikov V.N., Mikhalyov V.I. Mexanizmy vzaimodeystviya tsitokinov i steroidnykh gormonov v regulyatsii reproduktivnykh protsessov u korov [Mechanisms of interaction of cytokines and steroid hormones in the regulation of reproductive processes in cows]. - Veterinarnaya patologiya. - Rostov-on-Don, 2018 (2 (64)). - pp. 24-28.

8-9. Vide supra.

Author affiliation:

Novikova Elena N., Ph.D. in Veterinary Medicine, senior scientific researcher of the department of therapy and obstetrics of the Krasnodar Scientific Research Veterinary Institute - separate structural subdivision of the Krasnodar Scientific Center for Animal Husbandry and Veterinary Medicine, docent of the Department of Microbiology, Epizootology and Virology of the Kuban State Agrarian University named after I.T. Trubilin; 1, 1 Liniya st., Krasnodar, 350004; phone: 8-861-2216220; e-mail: knivi@list.ru.

Shevchenko Aleksandr N., Ph.D. in Veterinary Medicine, docent of the Department of Anatomy, Veterinary Obstetrics and Surgery of the Kuban State Agrarian University named after I.T. Trubilin; 13, Kalinina st., Krasnodar, 350044; phone: 8-861-221-58-20; e-mail: veterinary@kubsau.ru.

Responsible for correspondence with the editorial board: Skorikov Aleksandr V., Ph.D. in Biology, Deputy Director on scientific work of the Krasnodar Scientific Research Veterinary Institute - separate structural subdivision of the Krasnodar Scientific Center for Animal Husbandry and Veterinary Medicine; 1, 1 Liniya st., Krasnodar, 350004; phone: 8-861-2216220; e-mail: knivi@list.ru.


http://vetkuban.com/en/num4_202105.html