10. A thermometer
9. Betadine® Scrub
8. Novalsan® cream
7. Properly fitting tack for riding horses
6. A good blacksmith
5. A hoof pick
4. Annual fecals
3. Good quality hay and/or grass
2. A good equine vet
And the number one item any horse owner of any means can afford and implement to prevent so may other problems that can destroy the foundation of their horse:
1. A pitch fork – and the commitment to use it daily in run-in sheds too!