While often used interchangeably, welfare and rights represent two distinct philosophical approaches to the same goal: reducing suffering. Understanding Animal Welfare: The Standard of Care
(ensuring conditions and treatment which avoid mental suffering).
The gold standard for welfare is the originally developed for livestock but now applied across the board:
Animal rights, by contrast, is a more radical philosophical position. It argues that animals have an inherent right to live free from human exploitation and use. Proponents believe that animals are not "property" or "resources," but "persons" in a legal or moral sense.
(sufficient space and proper facilities).