snorting while exercised in the morning

Question
hello sir, while exercising horses early in the morning, few of them make snorting sound when they are galloped at fast pace. may i know why? are they really enjoying their work or they have some breathing problem?

Answer
The horse may be making this sound if there is a breathing problem, but the sound also can mean nothing and may just be created because of airway conformation. The best way to find out if there is a breathing problem is to have a veterinarian scope the horse.