Intestinal ciliates found in the feces of Japanese native Tokara pony, with the description of a new genus and a new species.

This research studied the types and quantity of intestinal ciliates in the feces of 20 Tokara ponies in Japan, discovering a new genus and species in the process. The study also found differences in ciliate diversity and density between stallions, mares and foals.

Study Sample

• The researchers analyzed samples from 20 Tokara native ponies located at Kagoshima University’s Iriki farm in Japan. This group comprised stallions, mares, and foals.

Findings: Ciliates Diversity and Quantity

• The team identified 18 species of intestinal ciliates, distributed in 11 genera, based on Strelkow’s description, a notable figure in the field.
• They discovered a new genus and species, named Wolskana tokarensis. This new finding was classified under the Buetschliidae family.
• The study found that the average ciliate density across all subjects was 13.8 x 10(3)/ml.
• The specific densities of ciliates found in stallions, mares, and foals respectively were 3.9 x 10(3)/ml, 16.1 x 10(3)/ml, and 43.3 x 10(3)/ml.
• It was observed that the ciliate density in stallions was significantly lower compared to that in mares and foals, while it was considerably higher in foals than in mares.

Findings: Diversity Index

• The average Brillouin’s diversity index was 1.554 for all subjects. The diversity index is a measure of species diversity in a community, and a greater value indicates higher diversity.
• The diversity index for stallions (1.470) was significantly lower than the indexes of mares (1.539) and foals (1.698).

Conclusion

• In conclusion, the researchers found an average of 11.7 species per host, establishing the complexity of the ciliate community in Tokara ponies’ intestines.
• The introduction of Wolskana tokarensis serves as an addition to the scientific understanding of these ciliates which may have implications or relevance for equine health research in future.