Zoo Animal Nutrition and Health | Animal Welfare Hub

Providing nutritionally complete and behaviourally appropriate diets in zoos is more complex than wild feeding but essential for long-term health; metabolic disease from inappropriate diets is a preventable welfare problem.

Key Facts

Metabolic bone disease from improper calcium-phosphorus ratios is common in reptiles kept in zoos
Obesity in captive great apes is a chronic welfare problem without regular dietary monitoring
Iron storage disease causes deaths in tropical birds particularly toucans and mynahs
Natural diet variation and foraging methods are increasingly incorporated in zoo nutrition programmes

Welfare Considerations

Zoo nutrition requires balancing complete nutritional provision with behavioural expression of natural feeding behaviour. Diets that meet all nutritional requirements but are presented in ways that eliminate foraging behaviour deprive animals of a major portion of their natural activity budget. Best practice integrates nutrition with enrichment — presenting food in ways that require foraging effort appropriate to species-specific feeding ecology. Monitoring weight and body condition alongside regular blood chemistry provides early warning of nutritional problems.

What You Can Do

Support zoos investing in species-specific nutritional research and diet development
Advocate for transparency in zoo animal health and nutrition monitoring
Raise awareness that zoo animal health depends on both nutritional completeness and behavioural appropriateness of diet presentation