Antimicrobial Susceptibility in Clinical Mastitis Cases on Simmental Farms in the Mačva Region (Serbia)
Authors
Ninković, MilanŽutić, Jadranka
Pavlović, Marija
Jezdimirović, Nemanja
Radanović, Oliver
Nikolić, Marko
Zdravković, Nemanja
Article (Published version)
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The battle against mastitis remains an enduring challenge in contemporary animal
farming. This paper presents the frequency of bacterial pathogens isolated from milk
samples collected on 3 farms with a previous history of clinical mastitis in the Mačva
region during the year 2022. A total of 77 Simmental cows were enrolled in the study,
ranging from the first to sixth lactation and managed in a tie-stall system. The results
obtained indicate that the frequency of clinical mastitis in the animals considered was
16.9%. Of a total of 13 pathogenic isolates with clinically present mastitis,
Staphylococcus aureus was recorded in 5 (38.4%), Streptococcus uberis in 3 (23.1%),
Escherichia coli in 2 (15.4%), Klebsiella pneumoniae in 2 (15.4%), and Streptococcus
dysagalactiae in 1 (7.7%). Notably, the largest number of clinical mastitis cases (namely
8, or 61.5%) was recorded during the winter period. Both cases of mastitis caused by K.
pneumoniae were detected in the summer, the occu...rrence of which was implicated in
changes in the bedding straw. According to the stage of lactation, the highest frequency of
mastitis was found in the early stage of lactation totaling 8 cases (61.5%), followed by 4
(30.8%) in the middle phase of lactation, and only 1 (7.7%) in the late stage of lactation.
The causative agents of the Streptococcus genus showed susceptibility to β lactamates in
all the cases, whereas all of the E. coli and K. pneumoniae isolates were found resistant
to ampicillin, amoxicillin with clavulanic acid.
Keywords:
antimicrobial resistance / clinical mastitis / cows / frequency / SerbiaSource:
Contemporary Agriculture, 2024, 73, 1-2, 1-5Publisher:
- Novi Sad : Faculty of Agriculture
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200030 (Scientific Veterinary Institute of Serbia, Belgrade) (RS-MESTD-inst-2020-200030)
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Institution/Community
Naučni institut za veterinarstvo SrbijeTY - JOUR AU - Ninković, Milan AU - Žutić, Jadranka AU - Pavlović, Marija AU - Jezdimirović, Nemanja AU - Radanović, Oliver AU - Nikolić, Marko AU - Zdravković, Nemanja PY - 2024 UR - https://reponivs.nivs.rs/handle/123456789/1008 AB - The battle against mastitis remains an enduring challenge in contemporary animal farming. This paper presents the frequency of bacterial pathogens isolated from milk samples collected on 3 farms with a previous history of clinical mastitis in the Mačva region during the year 2022. A total of 77 Simmental cows were enrolled in the study, ranging from the first to sixth lactation and managed in a tie-stall system. The results obtained indicate that the frequency of clinical mastitis in the animals considered was 16.9%. Of a total of 13 pathogenic isolates with clinically present mastitis, Staphylococcus aureus was recorded in 5 (38.4%), Streptococcus uberis in 3 (23.1%), Escherichia coli in 2 (15.4%), Klebsiella pneumoniae in 2 (15.4%), and Streptococcus dysagalactiae in 1 (7.7%). Notably, the largest number of clinical mastitis cases (namely 8, or 61.5%) was recorded during the winter period. Both cases of mastitis caused by K. pneumoniae were detected in the summer, the occurrence of which was implicated in changes in the bedding straw. According to the stage of lactation, the highest frequency of mastitis was found in the early stage of lactation totaling 8 cases (61.5%), followed by 4 (30.8%) in the middle phase of lactation, and only 1 (7.7%) in the late stage of lactation. The causative agents of the Streptococcus genus showed susceptibility to β lactamates in all the cases, whereas all of the E. coli and K. pneumoniae isolates were found resistant to ampicillin, amoxicillin with clavulanic acid. PB - Novi Sad : Faculty of Agriculture T2 - Contemporary Agriculture T1 - Antimicrobial Susceptibility in Clinical Mastitis Cases on Simmental Farms in the Mačva Region (Serbia) EP - 5 IS - 1-2 SP - 1 VL - 73 DO - 10.2478/contagri-2024-0001 ER -
@article{ author = "Ninković, Milan and Žutić, Jadranka and Pavlović, Marija and Jezdimirović, Nemanja and Radanović, Oliver and Nikolić, Marko and Zdravković, Nemanja", year = "2024", abstract = "The battle against mastitis remains an enduring challenge in contemporary animal farming. This paper presents the frequency of bacterial pathogens isolated from milk samples collected on 3 farms with a previous history of clinical mastitis in the Mačva region during the year 2022. A total of 77 Simmental cows were enrolled in the study, ranging from the first to sixth lactation and managed in a tie-stall system. The results obtained indicate that the frequency of clinical mastitis in the animals considered was 16.9%. Of a total of 13 pathogenic isolates with clinically present mastitis, Staphylococcus aureus was recorded in 5 (38.4%), Streptococcus uberis in 3 (23.1%), Escherichia coli in 2 (15.4%), Klebsiella pneumoniae in 2 (15.4%), and Streptococcus dysagalactiae in 1 (7.7%). Notably, the largest number of clinical mastitis cases (namely 8, or 61.5%) was recorded during the winter period. Both cases of mastitis caused by K. pneumoniae were detected in the summer, the occurrence of which was implicated in changes in the bedding straw. According to the stage of lactation, the highest frequency of mastitis was found in the early stage of lactation totaling 8 cases (61.5%), followed by 4 (30.8%) in the middle phase of lactation, and only 1 (7.7%) in the late stage of lactation. The causative agents of the Streptococcus genus showed susceptibility to β lactamates in all the cases, whereas all of the E. coli and K. pneumoniae isolates were found resistant to ampicillin, amoxicillin with clavulanic acid.", publisher = "Novi Sad : Faculty of Agriculture", journal = "Contemporary Agriculture", title = "Antimicrobial Susceptibility in Clinical Mastitis Cases on Simmental Farms in the Mačva Region (Serbia)", pages = "5-1", number = "1-2", volume = "73", doi = "10.2478/contagri-2024-0001" }
Ninković, M., Žutić, J., Pavlović, M., Jezdimirović, N., Radanović, O., Nikolić, M.,& Zdravković, N.. (2024). Antimicrobial Susceptibility in Clinical Mastitis Cases on Simmental Farms in the Mačva Region (Serbia). in Contemporary Agriculture Novi Sad : Faculty of Agriculture., 73(1-2), 1-5. https://doi.org/10.2478/contagri-2024-0001
Ninković M, Žutić J, Pavlović M, Jezdimirović N, Radanović O, Nikolić M, Zdravković N. Antimicrobial Susceptibility in Clinical Mastitis Cases on Simmental Farms in the Mačva Region (Serbia). in Contemporary Agriculture. 2024;73(1-2):1-5. doi:10.2478/contagri-2024-0001 .
Ninković, Milan, Žutić, Jadranka, Pavlović, Marija, Jezdimirović, Nemanja, Radanović, Oliver, Nikolić, Marko, Zdravković, Nemanja, "Antimicrobial Susceptibility in Clinical Mastitis Cases on Simmental Farms in the Mačva Region (Serbia)" in Contemporary Agriculture, 73, no. 1-2 (2024):1-5, https://doi.org/10.2478/contagri-2024-0001 . .