How zoo breeding programs contribute to black rhinoceros conservation while meeting welfare needs.
Black rhinoceros welfare in captivity requires understanding the species territorial and dietary needs. Rhinos kept in social conditions that create chronic competition stress, or fed diets inadequate in browse variety and mineral content, show health problems and behavioral signs of poor welfare. Zoo breeding programs that have contributed reintroduced rhinos to wild populations demonstrate genuine conservation value — the welfare costs of captivity are offset by conservation contributions that would otherwise be impossible. High welfare standards and conservation contribution should be simultaneously required of rhino breeding programs.