The ostrich is an important animal in many livestock industries and in the developing world. The digestive system of the ostrich differs considerably from that of non-ruminant animals or poultry. The genetic potential of an ostrich can be described by its characteristic growth curve. This present paper presents an account of the rearing, anatomy of the gastrointestinal tract, and growth curves of this bird.

This review discusses current data on nutrition in ostrich breeding birds. Nutritional demands increase during breeding particularly the calcium and phosphorus requirements for egg production. The correct balance of amino acids, vitamins and carbohydrates is important for the maintenance of high fertility after the attainment of sexual maturity at 24 months of age for female birds and 36 months of age for male birds. Most problems relating to health and performance, including fertility, hatching, chick survival, growth rates and deformities in the early weeks, are usually traced to inadequate breeder rations.