Let’s start with stable management. Three things are of the essence here:
Enough movement. Movement stimulates hooves’ functioning and ensures good circulation.
A healthy weight. Overweight horses place a far greater burden on their hooves than horses within a healthy weight range.
A clean stable. In dirty stables, the horse’s urine can combine with the bedding to produce high levels of ammonia. Ammonia makes hooves softer and therefore weaker