Effect of balanced vs. standard protein on muscle mass development in exercising horses.

Twelve horses weighing 570 ± 35 kg were split into two groups (standard protein, , and balanced protein, ) to evaluate the effect of balanced vs. unbalanced protein on muscle mass. Groups were fed grass hay and a 12% CP feed (one formulated for balanced protein).

Timing of feeding a protein supplement on nitrogen balance and plasma amino acids during exercise recovery in horses.

Eight geldings weighing 544 ± 16 kg were used to evaluate feeding a postexercise protein meal on plasma amino acids during recovery. Horses were fed sweet feed, corn, grass hay and equal amounts of a protein pellet (32% CP) with meals (MP group) or postexercise (EP group). Horses exercised 1-2 h/day, 5 days/week, for 12 weeks.

The effect of time of feeding on plasma amino acids during exercise and recovery in horses.

Feeding management in horses suggests feeding horses in advance of exercise, particularly the grain portion of the diet. Plasma amino acids () peak at 3 to 6 h postfeeding depending on the AA. The timeframe between feeding and exercise may affect the availability of AA during and after exercise.