adult horsies will have air problem in the stomach...not just juvenile or babies.
you can try to let the air out by using a thin stick or something soft and try to stick it in the pouch on the male(when you do this you should use other hand to hold the horse so its horizontal and air will come out easier)...sometimes the bubble goes into the male's pouch when its open, he doesn't have to EAT the bubble to have bubble problem....for female it will be harder but same procedure can be done....try to do it fast because its really bad for the horsies and you might make it worse if you take a long time and don't get the bubble out. hope this helps....