Open AccessMucoid bovine mastitis isolates of Streptococcus uberis - difficulties in identification
Author(s) -
Oliver Stevanović́,
Dubravka Milanov,
Milan Djilas,
Nevenka Aleksić
Publication year - 2022
Publication title -
veterinarski glasnik
Language(s) - English
Resource type - Journals
eISSN - 2406-0771
pISSN - 0350-2457
DOI - 10.2298/vetgl210929003s
Subject(s) - streptococcus uberis , mastitis , microbiology and biotechnology , bovine milk , biology , bacteriology , formic acid , california mastitis test , agar , streptococcus , veterinary medicine , food science , bacteria , chemistry , chromatography , medicine , ice calving , genetics , pregnancy , lactation
Highly mucoid Streptococcus uberis were isolated on blood agar from five milk samples originating from two dairy cow farms. All the isolates were CAMP test and esculin hydrolysis negative. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) following prior extraction with 70% formic acid was used for identification to the species level. Given that it is plausible that such strains could be isolated in the future from dairy cows by laboratories in Serbia and the Balkans, we consider this case report to be a useful instruction for veterinary bacteriology laboratories.