https://doi.org/10.4081/ijfs.2017.6612

Phenotypic antimicrobial resistance profile of isolates causing clinical mastitis in dairy animals

Vol 6 no. 2 (2017)
Submitted: 2 February 2017
Accepted: 18 April 2017
Published: 3 May 2017
Antibiotic resistance, Mastitis, Staphylococcus aureus
Abstract Views: 2025
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Authors

Carlotta Ceniti
Department of Health Sciences, Magna Græcia University, Catanzaro, .
Domenico Britti
Department of Health Sciences, Magna Græcia University, Catanzaro, Italy.
Adriano Michele Luigi Santoro
Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy.
Rosanna Musarella
Institute for Experimental Veterinary Medicine of Southern Italy, Catanzaro, Italy.
Lucia Ciambrone
Institute for Experimental Veterinary Medicine of Southern Italy, Catanzaro, Italy.
Francesco Casalinuovo
Institute for Experimental Veterinary Medicine of Southern Italy, Catanzaro, Italy.
Nicola Costanzo
costanzo.nic@unicz.it
Department of Health Sciences, Magna Græcia University, Catanzaro, Italy.
Mastitis is the most frequent and costly disease of lactating animals and is associated with a significant reduction in milk yield, increased cost and culling. Early and specific antibiotic based treatment reduces the severity of the disease. Over the years the extensive use of antimicrobials has led to increase antimicrobial resistance. The present study was designed to investigate the prevalence of microorganisms responsible for mastitis and their antimicrobial resistance pattern. A total of 282 milk samples were collected from different animal species (sheep, cows and goats) with clinical mastitis. Antimicrobial resistance was evaluated for Streptococcus spp. and Staphylococcus spp. In cow samples Streptococcus spp. represented the most frequently isolated genus (33.84%), while Staphylococcus spp. was the most prevalent genus in sheep and goat samples (44.4 and 73.86%, respectively). Gentamicin and chloramphenicol were found to be the most effective drugs against the tested isolates, while the highest resistance rates were observed for amoxicillin, ampicillin, tetracycline, trimethoprim-sulfamethoxazole.

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How to Cite

1.
Ceniti C, Britti D, Santoro AML, Musarella R, Ciambrone L, Casalinuovo F, Costanzo N. Phenotypic antimicrobial resistance profile of isolates causing clinical mastitis in dairy animals. Ital J Food Safety [Internet]. 2017 May 3 [cited 2024 Nov. 21];6(2). Available from: https://www.pagepressjournals.org/ijfs/article/view/6612

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