Publications by authors named "S Horsman"

Mastitis, a prevalent and economically important disease in the dairy industry, poses substantial challenges to dairy cow health, milk quality, and farm profitability worldwide. Mastitis is predominantly caused by bacterial infections. The objective of this study was to estimate the sensitivity (Se) and specificity (Sp) of bacterial culture and the VetMAX™ MastiType Multi Kit PCR in identified clinical mastitis pathogens.

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Gut bacterial communities play a vital role in a host's digestion and fermentation of complex carbohydrates, absorption of nutrients, and energy harvest/storage. Dugongs are obligate seagrass grazers with an expanded hindgut and associated microbiome. Here, we characterised and compared the faecal bacterial communities of dugongs from genetically distinct populations along the east coast of Australia, between subtropical Moreton Bay and tropical Cleveland Bay.

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Article Synopsis
  • The study investigated pathogens in cow’s milk linked to clinical mastitis in Australia’s subtropical region and assessed their antibiotic resistance.
  • Over a year, 1,230 milk samples were analyzed, yielding a 66% positive culture rate with Strep. uberis and non-aureus staphylococci being the most frequently identified bacteria.
  • Variations in pathogen prevalence were noted across three locations (North Queensland, Southeast Queensland, and Northern New South Wales), with significant differences in the odds of isolating specific bacteria like E. coli and Strep. dysgalactiae across these areas.
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Article Synopsis
  • A 5-year study in Australia analyzed 22,102 bovine milk samples to identify organisms causing mastitis, focusing on trends and susceptibility patterns.
  • The study found that 51.6% of samples had at least one significant organism, with common pathogens showing good susceptibility to antimicrobials.
  • Results indicated that the prevalence of specific pathogens varied by region, emphasizing the need for further research into environmental and herd-level factors affecting mastitis occurrences.
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Dermatological conditions may be complicated by Staphylococcus spp. infections influencing skin and nasal microbiota. We investigated the associations between the resident nasal microbiota of shelter dogs with and without dermatological conditions carrying methicillin-resistant and -sensitive Staphylococcus spp.

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