Izvorni znanstveni članak

https://doi.org/10.46419/vs.56.6.11

Mastitis pathogens in goats and sheep in the Republic of Croatia and their sensitivity to antimicrobials

Luka Cvetnić orcid.org/0009-0009-3474-6998 ; Croatian Veterinary Institute, Zagreb, Croatia *
Marko Samardžija orcid.org/0000-0003-0402-3173 ; Faculty of Veterinary Medicine University of Zagreb, Croatia
Tomislav Sukalić orcid.org/0009-0000-5003-6122 ; Croatian Veterinary Institute - branch Veterinary Institute Križevci, Croatia
Damir Lukačević orcid.org/0000-0002-6923-0205 ; Croatian Veterinary Institute - branch Veterinary Institute Split, Croatia
Marica Lolić orcid.org/0000-0002-7325-3549 ; Croatian Veterinary Institute - branch Veterinary Institute Vinkovici, Croatia
Gordan Kompes orcid.org/0009-0000-4934-1357 ; Croatian Veterinary Institute, Zagreb, Croatia
Boris Habrun orcid.org/0009-0002-9688-026X ; Croatian Veterinary Institute, Zagreb, Croatia
Antonela Bagarić orcid.org/0009-0002-5567-681X ; Croatian Veterinary Institute, Zagreb, Croatia
Željko Cvetnić ; Croatian Veterinary Institute - branch Veterinary Institute Križevci, Croatia
Miroslav Benić orcid.org/0000-0001-7594-520X ; Croatian Veterinary Institute, Zagreb, Croatia

* Dopisni autor.

Sažetak

This paper outlines the results of researching the incidence of mastitis in small ruminants in the Republic of Croatia over a six-year period (2017 to 2022). During this period, microbiological testing was performed on 801 samples of udder secretions from small ruminants in 13 counties and the city of Zagreb, with 178 samples (22.2%) testing positive for mastitis pathogens. Of the total 609 udder secretion samples from goats, mastitis agents were isolated from 150 samples (24.6%), while the 192 udder secretion samples from sheep revealed 28 (14.6%) contained mastitis agents. The highest prevalence of mastitis pathogens in goat udder secretions was found in 2018 (31.8%), and in sheep in 2020 (32.9%). Microbiological testing identified 16 species and genera of bacteria. The most common species were Staphylococcus aureus, isolated from 96 (53.9%) samples, Staphylococcus
spp. (46 samples; 25.8%), Streptococcus spp. (7; 3.9%), Klebsiella spp. and Corynebacterium spp. (each 5; 2.8%), Escherichia coli (4; 2.2%), Streptococcus uberis and Proteus spp. (each 3; 1.7%), and Pseudomonas spp. (2; 1.1%). Other species and genera, such as Streptococcus agalactiae, Streptococcus dysgalactiae, Pasteurella spp., Mannheimia haemolytica, Enterococcus spp., Enterobacter and Serratia spp. were isolated sporadically, each from one sample. The isolated bacterial cultures were tested for sensitivity to antimicrobials using the disc-diffusion method to amoxicillin with clavulanic acid, ampicillin, cefaperazone, enrofloxacin, kanamycin, cloxacillin, lincomycin, neomycin, novobiocin, penicillin, streptomycin, sulfamethoxazole with
trimethoprim, and tetracycline. Sensitivity of the isolated agents to the antimicrobials was most pronounced towards cefoperazone and enrofloxacin, regardless of the species or genera of the isolated mastitis agent. The odds of isolating a mastitis agent from goat udder secretions was 1.61 times higher than for sheep (P<0.05). This study confirmed that the occurrence
of mastitis in small ruminants in Croatia is comparable to incidences reported in other Mediterranean countries.

Ključne riječi

mastitis; prevalence; antimicrobial resistance; small ruminants

Hrčak ID:

328080

URI

https://hrcak.srce.hr/328080

Datum izdavanja:

16.3.2025.

Podaci na drugim jezicima: hrvatski

Posjeta: 862 *