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Summary
        This study was conducted to record preliminary data on the productivity of ostriches (Struthio camelus) in two ratite farms (A and B) in central region of the Saudi Arabia. Breeders in Farm A started egg laying at the 19th month of age with an average production of 12 eggs per female in their first season. Older (imported) breeders had averages of 1.2, 7 and 23 eggs per female in the first three production seasons in Saudi Arabia.  Farm B breeders had an average production of 13.5 and 35.2 eggs per female in their first two production seasons. The crude rate of egg defects in the two farms was 9.6%. The main causes of egg defects were egg undersize, presence of holes, cracks and rough shells. Mean fertility rates of ostrich eggs were 52.5% in Farm A and 68.6% in Farm B.

The mean hatchability rates were 75% and 67.3% in Farm A and B, respectively. Farm A had an overall embryonic mortality of 25% of fertile eggs whereas Farm B had 32.7% overall embryonic mortality. Most of Farm A embryonic mortality (61.9%) was late while the remaining 38.1% of mortality occurred during early embryonic development.
 


 

 
 
   
 
 

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