This is my yearling Quarter Horse gelding. He's going through a massive growth spurt at the moment (last Saturday, I sticked him at 12hh. Yesterday, he was 13.1hh) and eats as much as the barn owner's full grown mare. He is on the pasture and fed hay twice daily. He's in the process of developing a grass belly, as you can see, and was last wormed on July 17.
Is he too ribby?