Zoo database

Ostrich

Struthio camelus

Natural diet Ostrich

Fruits
Grain / seeds
Grasses
Insects
Leaves

Ostriches are omnivorous birds that primarily eat seeds, leaves, buds and flowers. Besides this, insects are also frequently consumed and occasionally some small vertebrates.

Feeding advice Ostrich

Feed quantity per day

4-6% of body weight

Sample percentage calculation

If an animal weighs 110 kg and eats 5% of its body weight, it will get

110 x 0.05 = 5.5 kg feed in total per day

Feed composition

85% Concentrates
10% Leafy and cabbage vegetables
5% Other

Proportions (fresh product)

0.85 x 5.5 kg = 4675 g concentrates
0.1 x 5.5 kg = 550 g leafy and cabbage vegetables
0.05 x 5.5 kg = 275 g other

Diet suggestions

Not recommended

Bread
Fruits

Additional advice

Divide the “Feed quantity per day” over at least two feeding moments per day.
Supplement the diet with around 5% grain mixture.
Supplement the diet with ad libitum soluble grit as a source of calcium.
Insoluble grit is not required if they go outside, as they will ingest small stones (read more about grit).
Although present in their natural diets, feeding fruits might lead to might lead to gastro-intestinal disturbances because of the high sugar level and low fiber level in cultivated fruits compared to wild fruits (read more about nutritional values of (wild) fruits and vegetables).
Avoid feeding bread as the high starch content may cause gastro-intestinal disturbances.
Stimulate foraging behaviour by using feeding puzzles and scatter feeding (read more about feed enrichment and foraging behaviour).

Common diseases

An unbalanced diet may result in one of these more commonly occurring diseases/conditions:

Impaction
Obesity
Coprophagy
Limb deformities
Feather pecking

Feed quantity per day

Sample percentage calculation

Feed composition

Proportions (fresh product)

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