The difference between Uruguayan oxtail and domestic oxtail is the taste and price.

1. The difference in taste is that Uruguayan oxtail has a more delicate texture, with other layers of meat inside, making it firmer and richer in flavor. Domestic oxtail, on the other hand, has a poorer texture, thinner meat layer, softer texture and lighter taste.

2. The price difference is that Laguayan oxtail is more expensive, while domestic oxtail is cheaper.