He mostly wheezes. It's not very loud, you wouldn't notice it if you weren't paying attention. Occasionally, he'll have a deep cough, but I've never heard it. My friend who comes to feed her horses at the same barn claims she has. He's very alert though, and otherwise a happy mini. He was actually quite mad at me though when he found the cough free in his feed and flipped it across the stall. Then kept looking at me like, "This is a joke, right?" :roll:
I got him from an auction 4 months ago, so it's quite possible he could have already had heaves. I heard of people pouring a bit of pancake syrup on the feed along with the supplement to get them to eat it. I guess I'll have to bring it next time I'm out there and try it. I tried mixing it with a handful of sweet feed and chopped carrots, he wouldn't touch it. His usual feed is senior feed, but there's not enough molasses in it to make it sticky otherwise I don't think it would've been a problem. lol