Transmission of some species of internal parasites in horses born in 1993, 1994, and 1995 on the same pasture on a farm in central Kentucky.

This research article presents data on the transmission of internal parasites in horses born from 1993 to 1995 in a Kentucky farm. This part of the study identified 35 species of endoparasites, observed transmission patterns, and found both similarities and differences presented in the early part of the study including a noted increase in certain parasites.

Study Background and Methodology

• The research referenced in this abstract is the continuation of a seven-year-long study that started in 1989, focusing on the transmission of internal parasites in foals born in the same pasture in a Kentucky farm.
• This specific paper discusses the findings of the last three years (1993-1995) of the study involving 27 horse foals from a closed breeding herd.
• The findings from the first four years were previously published.

Research Findings

• The researchers identified as many as 35 species of endoparasites. Of these, 24 were species of small strongyles, a common type of parasite affecting horses.
• They were also able to observe and outline monthly, seasonal, and host-age transmission patterns for these parasites.

Comparison with Previous Years

• The study compared the data from the last three years to that of the first four years, noting both similarities and differences.
• The comparison showed an increase in the prevalence and numbers of two specific parasites: Thelazia lacrymalis, a parasitic worm affecting the eyes, and Anoplocephala perfoliata, a tapeworm species.

Significance of the Study

• The importance of this research lies in understanding the transmission dynamics of parasitic infections in horses, specifically in a controlled and constant environment.
• The data helps devise targeted treatment and prevention strategies, enhancing the health and productivity of equine livestock.