Charleston Animal Society officials launched an investigation after the incident, WCIV reported.
Classic Carriage Works posted videos of the horse, Berry, and said his injury wasn't as serious as people thought.
A woman speaking in the video said the horse's hoof didn't come off, but rather a piece of fabric placed between the hoof and pad. Tim Manley, general manager of Classic Carriage, said the "chunk of hoof" that Bergmann referred to was just oakum, a material made of a mixture of hemp and pine tar used to provide extra padding.
Workers said the blood might have seemed like a lot, but for an animal of Berry's size, it wasn't.
"(There are a) lot of people saying a lot of things, (and) they don't actually know what they're talking about," Manley told WCIV.
Classic Carriage said Berry is expected to make a full recovery.