The gold standard for welfare is the originally developed for livestock but now applied across the board:
The end of animals in entertainment, such as circuses or marine parks. Legal standing for non-human animals in court. The Intersection of Science and Sentience
The formally acknowledged that non-human animals have the neurological substrates that generate consciousness. This scientific backing has fueled a global movement to upgrade animal protections from mere "anti-cruelty" laws to comprehensive rights frameworks. Modern Challenges and Progress
(providing an appropriate environment and shelter).
The Moral Compass: Navigating the Landscape of Animal Welfare and Rights
(access to fresh water and a healthy diet).