Fig 3. (A) Concentrate digestible energy; (B) the amount of concentrate; (C) mean body weights of fillies subjected to incremental exercise tests (IET-1 and -2) and an aerobic fitness program for 42 days.
* Indicates a reduction in digestible energy and the amount of concentrate supplied to the control group compared to the other experimental groups. # indicates a reduction starting from the 32nd day of conditioning with respect to the control group. The average body weight of all experimental groups remained unchanged during the trial.