It must be considered that requirements may vary according to body weight and dietary intake will need to be amended for this accordingly. It must also be considered that nutrient requirements on a body weight basis will increase in proportion to the type, intensity and duration of work, ambient temperature and horse temperament.
Figure 1: Daily Energy and Dry Matter Requirements
Performing Various Levels of Work Based on 500kg Average Weight (NRC 2007)
Suggested Diet (Daily) Per Horse Endurance horse (500kg)