Locking stifles....hereditary?

[Honeypots]

Does anyone know?... and if not would you breed from a mare with them?..

 

[Toby_Zaphod]

Might get a better response if posted in Veterinary or Breeding?

 

[Tinker_Belle]

Hmmmm, not sure. A pony of mine had it & it drove me mad, absolutely hated it as it felt like she was about to sit on the road!

I'm really not 100% sure if it is hereditary but it's an unnerving feeling all the same.