Is oxtail kosher

Ox tails CAN be kosher if the animal was slaughtered by a trained butcher called a shocet, using a special method called shechita which severs the jugular vein, the caroroiud artery, esophagus, and trachea in a single continuous cutting movement with an unserrated, sharp knife, avoiding unnecessary pain to the animal.

Then the animals would have to be checked for tumors or disease to make sure it is healthy and then all of the arteries and veins would have to be removed. For this reason, most of the hind quarters in most animals are thrown away (lots of veins and such) but it COULD be kosher.

I might be wrong though, so check with your rabbi first before eating such a thing.