Nutrition and feeding of ostriches

Dietary habits in the wild and gastrointestinal anatomy and function have established that the ostrich is an herbivore. Ostriches are not turkeys, but turkeys may be the best avian model we have from which to predict the ostrichʹs nutrient needs. To minimize leg abnormalities in ostrich chicks, it may be helpful to restrict weight gain by limiting dietary protein concentrations below those recommended for starting turkeys and by using higher fiber diets. Non-slip surfaces and exercise also are very important. Egg production by ostriches laying a normal annual clutch does not significantly increase the dietary calcium requirement. When egg production is forced by continually removing eggs, clacium requirements should be met by dietary concentrations of 16 g kg−1. Alternatively, ad libitum access to granulated calcium carbonate or oyster shell could be provided. Until the nutrient requirements of ostriches are better understood, zoos and ostrich farmers with small flocks may find a single life-cycle diet is a rational means to meet nutrient needs and keep feed fresh.