A quarter crack is a term used by horsemen to describe a vertical split in a horse hoof wall at or about the quarter or widest part of the hoof. Quarter cracks are not an uncommon injury in horses worked extensively in horseshoes.
- ↑ "Quarter cracks: What are quarter cracks?". www.andalusians-for-you.com. http://www.andalusians-for-you.com/quarter-crack.html. Retrieved 2008-06-07.
- ↑ "Big Brown suffered from quarter crack". www.ntra.com. http://www.ntra.com/content.aspx?type=news&id=32698. Retrieved 2008-06-07.