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Communication

Antimicrobial Susceptibility of Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli Isolated from Mastitic Dairy Cattle in Ukraine

1
Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
2
College of Osteopathic Medicine, Kansas City University of Medicine and Biosciences, 2901 St. John’s Boulevard, Joplin, MO 64804, USA
3
Institute of Veterinary Medicine of the National Academy of Agrarian Sciences of Ukraine, 30 Donetska Str., Kyiv 03151, Ukraine
*
Author to whom correspondence should be addressed.
Antibiotics 2020, 9(8), 469; https://doi.org/10.3390/antibiotics9080469
Received: 3 July 2020 / Revised: 25 July 2020 / Accepted: 29 July 2020 / Published: 1 August 2020
(This article belongs to the Section Mechanism and Evolution of Antibiotic Resistance)
Bovine mastitis is the predominant cause for antimicrobial use on dairy farms and is a major source of economic losses in the dairy industry. In this study, the antimicrobial susceptibility profiles of common mastitis-causing pathogens, Staphylococcus aureus (n = 62), Streptococcus agalactiae (n = 46), and Escherichia coli (n = 129), were determined for dairy cattle with mastitis across 142 Ukrainian farms. The results showed that there were more gentamicin resistant S. aureus isolates (16.95%) identified in this study than previously reported for Ukrainian dairy cattle. Moreover, low levels of amoxicillin susceptibly (13.51%) were observed for St. agalactiae, which contrasted a previous study showing susceptibility levels of >50%. St. agalactiae resistance to tetracycline was observed in 80% of the isolates. Cephalosporin use was most ineffective against E. coli, with 43.27–56% of the isolates exhibiting this resistant trait. Overall, this study performed a preliminary analysis of antimicrobial resistance on mastitis isolates from Ukrainian farms. However, given the limited numbers of the isolates tested in this study and that the publications on antimicrobial resistance in animal husbandry of Ukraine are very few, more extensive investigations are needed to comprehensively examine susceptibility patterns of mastitis-causing pathogens in dairy cattle in Ukraine. View Full-Text
Keywords: antimicrobial resistance; dairy farms; mastitis; bacterial isolates; Ukraine antimicrobial resistance; dairy farms; mastitis; bacterial isolates; Ukraine
MDPI and ACS Style

Elias, L.; Balasubramanyam, A.S.; Ayshpur, O.Y.; Mushtuk, I.U.; Sheremet, N.O.; Gumeniuk, V.V.; Musser, J.M.B.; Rogovskyy, A.S. Antimicrobial Susceptibility of Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli Isolated from Mastitic Dairy Cattle in Ukraine. Antibiotics 2020, 9, 469. https://doi.org/10.3390/antibiotics9080469

AMA Style

Elias L, Balasubramanyam AS, Ayshpur OY, Mushtuk IU, Sheremet NO, Gumeniuk VV, Musser JMB, Rogovskyy AS. Antimicrobial Susceptibility of Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli Isolated from Mastitic Dairy Cattle in Ukraine. Antibiotics. 2020; 9(8):469. https://doi.org/10.3390/antibiotics9080469

Chicago/Turabian Style

Elias, Leta, Ajay S. Balasubramanyam, Olena Y. Ayshpur, Iryna U. Mushtuk, Nataliya O. Sheremet, Volodymyr V. Gumeniuk, Jeffrey M.B. Musser, and Artem S. Rogovskyy 2020. "Antimicrobial Susceptibility of Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli Isolated from Mastitic Dairy Cattle in Ukraine" Antibiotics 9, no. 8: 469. https://doi.org/10.3390/antibiotics9080469

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