Energy requirements of light horses for various activities.

The research article summarizes a study conducted to understand the energy requirements for light horses undertaking various activities. The energy intake and the types of activities were analyzed for equitation horses and polo ponies, establishing benchmarks for their energy needs.

Study Participants and Purpose

• The participants of the study were seven horses used in equitation courses and nine polo ponies.
• The purpose of the study was to understand the energy requirements for these horses during different types of physical activity.

Energy Requirements and Measurements

• The researchers determined the Digestible Energy (DE) intake for each horse, an indicator of the energy that the horse could absorb from food.
• They also measured the type and amount of physical activity undertaken by these horses.
• The polo ponies required 31.6 Mcal DE/hr. of activity/kg mass.
• The equitation horses, on the other hand, only required 9.3 Mcal DE/hr. of activity/kg mass.

Estimating Energy Requirements for Various Activities

• Findings from other studies regarding the energy required for standing, walking, and trotting were incorporated.
• By plotting these values, the researchers derived estimates of energy requirements for the horses that may have practical applications in horse care and diet planning.
• Energy requirements extrapolated from activity levels above maintenance for various activities were as follows:
  • Walking required an additional energy expenditure of 0.5 kcal of DE/hr./kg mass.
  • Light activity including slow trot and some canter required 5.1 kcal of DE/hr./kg mass.
  • Medium activity, which involved fast trot, canter, and some jumping required 12.5 kcal of DE/hr./kg mass.
  • Heavy activity such as galloping and jumping required 24.1 kcal of DE/hr./kg mass.
  • Strenuous activity required the highest energy, at 39.0 kcal of DE/hr./kg mass.

Implications of the Findings

• The findings of this study can be used to better plan the diet and care regimen for horses used in different types of physical activity.
• The research could also help predict the energy requirements of horses under varying conditions, enhancing animal welfare and performance.