Seasonal changes in food selection and nutrition of captive platypuses (Ornithorhynchus anatinus)

摘要: Anecdotal observations of captive platypuses (Ornithorhynchus anatinus) suggest that they show a seasonal preference for particular foods, but this has never been rigorously measured. This study aimed to determine food preferences and energy consumption so better protocols maintaining in captivity can be developed. Seven were fed an ad libitum diet with all items weighed out tanks. Food analysed energy, fats, carbohydrates, proteins, vitamins minerals. Platypuses preferred less mobile prey (mealworms, earthworms fly pupae) over highly (crayfish). There was no significant change different dietary items, which is more likely driven by behaviour. Crayfish contributed the largest percentage (mass) consumed nutritious. While relative did not seasonally, quantity eaten did. The mean intake 921 kJ kg–1 day–1 varied being lowest during breeding season (810 kJ day–1) highest postbreeding (1007 kJ day–1). These changes associated preparation recovery from season. We conclude platypus influenced nutrition factors as well knowledge will contribute improving husbandry management platypuses, are widely recognised difficult maintain captivity.