This is the most comprehensive article I’ve ever read on the subject on why some horses crib and what can be done. The Horse Journal ceased publications in 2014, so I’ve posted the article here in hopes that it can help others who have horses that crib.
This is my favorite quote from the article, “If you want the recipe to produce a cribber, it’s: early weaning, a high concentrate/low forage diet, infrequent feedings, social isolation, and a stall environment.”