Isolation of Streptococcus spp., from the probes ofpathological material of factor infections of cattles in the Kabardino-Balkarian Republic

In the period from 2017 to 2020 in the cattle farms of the Kabardino-Balkarian Republic the frequency of detection of Streptococci in samples of pathological material from patients ( dead and forcedly killed calves and cattles) had been studied. In general, 757 samples from cattles were examined, including 137 samples from animals with signs of respiratory infections, 73 - lungs of animals that were killed or forced to die with pneumonia, 44 - from newborn calves ,who died with signs of umbilical sepsis, 43 samples of uterine outflows, 75 - vaginal swabs in cows with signs of vaginitis, 25 -urethral swabs, 24 - preputial swabs in bulls, 125 - from wounds, 39 - conjunctival swabs from cows with signs of conjunctivitis, 22 samples of animal synovial fluid with signs of arthritis, 16 - urine, as well as 134 samples of milk samples. Most often, streptococci are found in swabs from mucous membranes, that are open to the external environment: nasal swabs-72.2%, vaginal swabs -62.7%, preputial swabs -50.0%, as well as in samples of skimmed milk -83.5%. In acute respiratory infections of calves, it was possible to isolate streptococci from samples: lymph nodes in 55%, lung tissue-40%, blood -33, 3% of the studied samples. In samples of pathological material from calves, that died with signs of umbilical sepsis, streptococci were found in 72% of the studied blood samples, as well as in 75% of lymph nodes and spleens. Streptococci were isolated from pus wounds in 56.8% of the samples. Streptococci are present in almost all niches of the body, open to the external environment. Cases of detection of streptococci in places untypical to microbiomes, coincide with the severe clinical condition of both calves and adult cattles.

крупный рогат ый скот, стрептококки, патологический материал, микроорганизм, микрофлора, внешняя среда, cattle, streptococci, pathological material, microorganism, microflora, environment

1. Апатенко, В.М. Смешанные инфекции сельскохозяйственных животных / В.М. Апатенко. - Киев: Урожай, 1990. -С.75-112.

2. Выделение и идентификация стрептококков: пособие для врачей / Н.И. Брико, А.С. Ещина, Л.А. Ряпис [и др.]. -Москва: ММА им. И.М. Сеченова, 2002. - 48 с.

3. Джупина, С.И. Эпизоотический процесс и его контроль при факторных инфекционных болезнях / С.И. Джупина. -Москва: Изд-во РУДН, 2000. - 70 с.

4. Есепенок, В. А. Этиология, патогенез, лечение и профилактика стрептококкозов (современный взгляд) / В. А. Есепенок, Х.С. Горбатова // Ветеринарный консультант. - 2006. - № 10. - С. 3-5.

5. Конопаткин, А.А. Этиологическая и эпизоотологическая характеристика факторно-инфекционных болезней животных / А.А. Конопаткин, А.А. Глушков // Тезисы докладов III Всесоюзной конференции по эпизоотологии. - Новосибирск, 1991. - С. 22-23.

6. Мешев, Э.М. Эпизоотологические значения различных серогрупп стрептококков в смешанных респираторных инфекциях телят и их серопрофилактика: автореф. дис.. канд. вет. наук / Э.М. Мешев. - Москва, 1993. - 19 с.

7. Покровский, В.И. Стрептококки и стрептококкозы / В.И. Покровский, Н.И. Брико, Л.А. Ряпис.- Москва: ГЭОТАР-Медиа, 2006.- 544 с.

8. Facklam, R. What happened to the Streptococci: overview of taxonomic and nomenclature changes / R. Facklam // Clinical Microbiology Reviews. - 2002.- Vol.15, № 4.-613-616.