Antimicrobial susceptibility of streptococci most frequently isolated from Czech dairy cows with mastitis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027162%3A_____%2F19%3AN0000011" target="_blank" >RIV/00027162:_____/19:N0000011 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00027014:_____/19:N0000163

Výsledek na webu

<a href="https://content.sciendo.com/view/journals/aoas/19/3/article-p679.xml" target="_blank" >https://content.sciendo.com/view/journals/aoas/19/3/article-p679.xml</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/aoas-2019-0015" target="_blank" >10.2478/aoas-2019-0015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Antimicrobial susceptibility of streptococci most frequently isolated from Czech dairy cows with mastitis

Popis výsledku v původním jazyce

The objective was to investigate the antimicrobial susceptibility of most frequently isolated streptococci from Czech dairy herds. A total of 3,719 quarter milk samples were collected between January 2017 and June 2018 from cows with clinical or subclinical mastitis from 112 farms. One isolate of each species collected from the same farm per a six-month period was included in the susceptibility testing. The susceptibilities of Streptococcus uberis (163 isolates) and S. dysgalactiae (25 isolates) to 10 antimicrobials (penicillin - PEN, amoxicillin/clavulanic acid - AMC, ceftiofur - EFT, clindamycin - CLI, gentamicin - GEN, streptomycin - STR, trimethoprim/sulfamethoxazole - SXT, enrofloxacin - ENR, tetracycline - TET, rifampicin - RIF) from 9 groups were determined by measuring their minimum inhibitory concentrations. Bacteriological cultivation produced 648 isolates of S. uberis, 41 isolates S. dysgalactiae and 19 isolates S. agalactiae. The percentages of resistant S. uberis isolates to the antimicrobials were as follows: TET (63.2%), STR (52.1%), CLI (30.1%), RIF (2.5%). We found intermediate susceptibility to RIF (63.2%), PEN (35%), ENR (2.5%), EFT (1.8%) and AMC (1.2%). All the isolates tested were susceptible to GEN and SXT (100%). However, only 6.7% isolates were susceptible to all the antimicrobials and 38.7% isolates were multidrug resistant (≥3 groups of antimicrobials). All the S. dysgalactiae isolates were susceptible to PEN, AMC, EFT, GEN, SXT and ENR (100%). The resistant isolates found were to TET (60%), STR (28%), CLI (12%), and intermediate to TET (24%) and RIF (20%). Multidrug resistant isolates represented 16%. Only 8% of isolates were sensitive to all the antimicrobials. A relatively high occurrence of (multiple) resistance in mastitis pathogens highlights the importance of its monitoring in dairy herds.

Název v anglickém jazyce

Antimicrobial susceptibility of streptococci most frequently isolated from Czech dairy cows with mastitis

Popis výsledku anglicky

The objective was to investigate the antimicrobial susceptibility of most frequently isolated streptococci from Czech dairy herds. A total of 3,719 quarter milk samples were collected between January 2017 and June 2018 from cows with clinical or subclinical mastitis from 112 farms. One isolate of each species collected from the same farm per a six-month period was included in the susceptibility testing. The susceptibilities of Streptococcus uberis (163 isolates) and S. dysgalactiae (25 isolates) to 10 antimicrobials (penicillin - PEN, amoxicillin/clavulanic acid - AMC, ceftiofur - EFT, clindamycin - CLI, gentamicin - GEN, streptomycin - STR, trimethoprim/sulfamethoxazole - SXT, enrofloxacin - ENR, tetracycline - TET, rifampicin - RIF) from 9 groups were determined by measuring their minimum inhibitory concentrations. Bacteriological cultivation produced 648 isolates of S. uberis, 41 isolates S. dysgalactiae and 19 isolates S. agalactiae. The percentages of resistant S. uberis isolates to the antimicrobials were as follows: TET (63.2%), STR (52.1%), CLI (30.1%), RIF (2.5%). We found intermediate susceptibility to RIF (63.2%), PEN (35%), ENR (2.5%), EFT (1.8%) and AMC (1.2%). All the isolates tested were susceptible to GEN and SXT (100%). However, only 6.7% isolates were susceptible to all the antimicrobials and 38.7% isolates were multidrug resistant (≥3 groups of antimicrobials). All the S. dysgalactiae isolates were susceptible to PEN, AMC, EFT, GEN, SXT and ENR (100%). The resistant isolates found were to TET (60%), STR (28%), CLI (12%), and intermediate to TET (24%) and RIF (20%). Multidrug resistant isolates represented 16%. Only 8% of isolates were sensitive to all the antimicrobials. A relatively high occurrence of (multiple) resistance in mastitis pathogens highlights the importance of its monitoring in dairy herds.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40301 - Veterinary science

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Annals of Animal Science

ISSN

2300-8733

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

16

Strana od-do

679-694

Kód UT WoS článku

000478645400008

EID výsledku v databázi Scopus

2-s2.0-85064386663