Occurrence of Malassezia spp. in horses and domestic ruminants.

This research investigated the prevalence of various strains of the Malassezia species in domesticated animals including horses, goats, cows, and sheep. Results showed a greater incidence of lipid-dependent species compared to M. pachydermatis, with some species being isolated from these animals for the first time.

Research Methodology

• 112 animals were used in the study, comprising 50 horses, 25 goats, 25 sheep and 12 cows.
• These animals were tested for the presence of different Malassezia species, primarily lipid-dependent species and M. pachydermatis.

Results of the Study

• Malassezia species were isolated from a significant percentage of the animals tested, with the prevalence being highest in horses (60%) and cows (58%).
• In general, the occurrence of lipid-dependent species was much higher (42%), as compared to M. pachydermatis (3%).
• The study witnessed the first isolation of various Malassezia species from the different animals under consideration. A few examples include M. sympodialis, M. globosa, and M. restricta from sheep, and M. furfur, M. slooffiae, M. obtusa, M. globosa and M. restricta from horses.

Significance of Research Findings

• The study sheds new light on the occurrence of Malassezia species in animals. The high number of lipid-dependent species indicates the significant role of lipids in the biology of the Malassezia.
• The isolation of certain species from these animals for the first time improves the understanding of the distribution and range of different Malassezia species within the animal kingdom.
• Notably, this research is also the first to document the presence of M. restricta in animals, broadening the known range of this particular species.
• These findings may have critical implications for animal health and may direct future veterinary treatment strategies, especially given that the Malassezia genus is often associated with a variety of skin conditions.