The diet available in the wild differs substantially from the meals formulated for managed animals. In South American wetlands habitat, resource availability fluctuates wildly with seasonal flooding, whereas modern zoological facilities like the Audubon Zoo or San Diego Zoo balance nutritional intake down to the gram to safeguard long-term health.
| Dietary Category | Wild Wetlands (Pantanal / Llanos) | Managed Care (North American Zoos) | Primary Nutritional Function |
|---|---|---|---|
| Base Roughage | Native floodplain grasses, sedges, reeds | Timothy hay, orchard grass, Bermuda hay | Provides structural fiber; wears continuous dentition |
| Aquatic Forage | Water hyacinth, duckweed, water lettuce | Fresh romaine, endive, aquatic enrichment bins | Supplies hydration and behavioral stimulation |
| Concentrates | None (wild forage only) | Formulated rodent/herbivore pellets (low-starch) | Delivers balanced vitamin C, trace minerals, and protein |
| Hard Browse | River birch bark, roots, tough scrub limbs | Willow branches, mulberry browse, bamboo canes | Prevents premolar malocclusion through heavy chewing |
| Produce & Sugars | Occasional seasonal fallen palm fruits | Strictly rationed squash, carrots, or leafy greens | Training rewards only; high sugar risks cecal dysbiosis |
