Rachel:
How long since the last trim? These feet look very overgrown and due for a trim.
I also see some serious infection in the back of the foot. Have you treated the feet for thrush? Linda Cowles has excellent thrusth RX info at her site www.healthyhoof.com.
I would also think you might have some diet issues going on her.
Regards,
Kim Cassidy
www.clickandtrim.com
"Under certain circumstances, profanity provides a relief denied even to prayer." Mark Twain