Physiological Evaluation of Quarter Horses Undergoing Five-Month Taming Focused on Hippotherapy.

Overview

• This study evaluated the physiological responses of Quarter Horses during a five-month progressive taming protocol designed to prepare them for hippotherapy.
• The research aimed to assess how the horses adapted physiologically to taming and novel stimuli by monitoring heart rate, cortisol levels, and eye temperature.

Introduction and Purpose

• Hippotherapy involves the use of horses in therapeutic settings, requiring well-prepared horses able to cope with new environments and stimuli.
• Proper management and taming of horses are crucial to ensure animal welfare and successful adaptation.
• The study focused on evaluating physiological markers to understand how horses adapt over time to taming protocols.
• Quarter Horses were chosen for the study, and the taming protocol was progressive, spanning five months including acclimation and three taming stages.

Methodology

• Seven Quarter Horses were monitored throughout the five-month period.
• Physiological data were collected before and after exercise sessions at various points:
• Heart rate was continuously monitored, with focus on baseline, minimum, and maximum heart rates.
• Plasma cortisol concentrations were measured as a hormone indicator of stress.
• Ocular infrared thermography measured lacrimal caruncle (inner eye) temperature, a non-invasive stress and arousal indicator.
• The protocol included a gradual introduction to taming stimuli to promote adaptation.

Results and Interpretation

• Heart Rate:
• Baseline and minimum heart rates decreased over the five months, indicating the horses were becoming physiologically calmer or more adapted.
• Maximum heart rate was elevated in the initial stages, corresponding to the exposure to new stimuli, but reduced over time as the horses acclimated.
• Eye Temperature:
• Lacrimal caruncle temperature increased at the beginning of the taming process, possibly reflecting an initial stress or arousal response to new experiences.
• This temperature stabilized during subsequent months, suggesting the horses became more comfortable and less reactive.
• Plasma Cortisol:
• There were no significant changes in cortisol levels either before and after exercise or across months.
• This may suggest that the taming protocol did not induce chronic stress or that horses habituated quickly.

Conclusions and Implications

• The progressive taming protocol allowed Quarter Horses to adapt physiologically over time to the demands of taming and novel stimuli.
• Physiological markers suggest improved welfare conditions and decreased stress responses as taming progressed.
• The study supports the use of gradual, staged taming approaches in preparing horses for hippotherapy programs.
• Despite positive physiological results, the authors recommend additional research incorporating behavioral observations and welfare assessments to more comprehensively evaluate the horses’ well-being.
• Overall, the findings provide valuable insights for equine management practices aimed at supporting the health and functionality of therapy horses.