The amount of protein required in a horse’s diet depends on the equipment of an individual horse, the quality of protein being fed, and the amount of feed the horse is eating.
Given that many horse owners are concerned about protein levels, the following levels of protein in the total diet provide an appropriate
STARTING point:
Mature (Maintenance) 7-10%
Mature (Training) 9-13%
Pregnant Mares 11-13%
Lactating Mares 13-15%
Weanlings 15-16%
Yearlings 13-15%