Commodity status of animals
The commodity status of animals is the legal status as property of most non-human animals, particularly farmed animals, working animals and animals in sport, and their use as objects of trade. In the United States, free-roaming animals (ferae naturae) are (broadly) held in trust by the state; only if captured can they be claimed as personal property.
Source: Wikipedia — Commodity status of animals (CC BY-SA 4.0)