E-Poster Presentation Australian Society for Microbiology Annual Scientific Meeting 2021

Identification of Staphylococcus devriesei from ovine mastitis (#244)

Indu S Panicker 1 2 , Joanne L Allen 2 , Michelle Sait 2 3 , Rhys N Bushell 4 , Marc S Marenda 4 , Stuart R Barber 5
  1. School of Science, Psychology and Sport, Federation University, Berwick, Victoria, Australia
  2. Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria , Australia
  3. Microbiological Diagnostic Unit Public Health Laboratory, Department of Microbiology and Immunology, The University of Melbourne, Parkville , Victoria, Australia
  4. Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Victoria, Australia
  5. Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia

The study identified pathogens from clinical and subclinical mastitis in sheep from extensive grazing flocks in south-east Australia. Milk samples were collected from 3,529 Poll Dorset ewes at lamb weaning in Victoria, Australia and a high prevalence of coagulase-negative staphylococci was observed from sheep with subclinical mastitis. Phenotypic characteristics, biochemical tests, nucleotide sequence analysis of 16S rRNA and restriction fragment length polymorphism (RFLP) of gap gene were used to identify Staphylococcus devriesei, a species not previously reported from cases of mastitis in sheep.