I can certainly answer that.
I'll use Woodbine racetrack as an example because that's the largest one in Canada. Generally, between 15 and 20 horses will come in to race over the course of a racing season. Usually they come in groups of two or three. There are some that come in on private planes.
These horses are in padded stalls. They are bandaged up. They have straw under their feet. They are given access to food and water throughout the flight. They sometimes travel with a vet the whole way. It is a very different experience from what is being described here today.