Pagan, J.D., B. Essen-Gustavsson, A. Lindholm and J. Thornton. 1987. The effect of dietary energy source on blood metabolites in Standardbred horses during exercise. In: Proc. 10th Equine Nutr. and Physiol. Soc. Symp. Colorado State University. pp. 425-430.

Pagan, J.D., B. Essen-Gustavsson, A. Lindholm, and J. Thornton. 1987. The effect of exercise and diet on muscle and liver glycogen repletion in Standardbred horses. In: Proc. 10th Equine Nutr. and Physiol. Soc. Symp. Colorado State University. pp. 431-436. Two experiments were conducted to determine the effect of exercise and diet on muscle and liver […]

Energy expenditure was measured in four geldings (433 to 520 kg) during submaximal exercise on a racetrack using a mobile open-circuit indirect respiration calorimeter. Total energy expended by the four horses walking, trotting, cantering was best described by the equation: Y = e3.02 + .0065X where Y = energy expended (cal X kg-1 X min-1) and X = speed (m/min).

Energy balance studies using indirect calorimetry were conducted with four mature equids ranging in weight from 125 to 856 kg. It was concluded that the maintenance requirements of equids vary linearly with body weight. The digestible energy (DE) requirement for equids confined to metabolism stalls was DE (kcal/d) = 975 + 21.28 X W where W equals body weight in kg.

This study was carried out to determine the metabolic response to load carrying and inclined trotting during treadmill exercise in the horse. Five standardbred trotters, trained for treadmill exercise, were subjected to an exercise test with and without 10% of their body weight in the position of a rider and saddle.

Three standardbred horses were used in a 3×3 Latin square design trial to determine the effect of feeding diets containing different levels of carbohydrate, fat, and protein to exercise horses. Muscle and live glycogen concentrations were significantly lower after the long slow exercise test when the horses were fed high protein and high fat than fed the commercial sweet feed diet.

Increases in energy intake decreased the concentration of total solids, protein, fat and gross energy of mare’s milk. Energy intake had a greater influence on the mare’s body condition than on milk energy production. It was concluded the objective of a feeding program for a lactating mare should be to keep the mare in a desirable body condition rather than to influence milk composition or production.

Pagan, J.D. 1985. The energetics of exercise in horses. In: Proc. “What’s Up Doc” Symp. Cornell University. pp. 61-71.

Energy balance studies using indirect calorimetry were conducted with four mature equids ranging in weight from 125 to 856 kg

Pagan, J.D. and H.F. Hintz. 1985. Energy expenditure in horses during submaximal exercise. In: Proc. 9th Equine Nutr. and Physiol. Soc. Symp. Michigan State University. pp. 182-187. This experiment was conducted to measure the amount of energy expended by horses traveling at speeds up to 400 m/minute on a racetrack both with and without a […]