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pro vyhledávání: '"Elias, M.Z.J. (Mario Zefanias Joao)"'
The ostrich industry is a small, important section of the economy in the Republic of South Africa. The demand for ostrich products is high in the world, but the ostrich industry faces some production problems, one of which is the low fertility of com
Externí odkaz:
http://hdl.handle.net/2263/30854
http://upetd.up.ac.za/thesis/available/etd-05242013-100406/
http://upetd.up.ac.za/thesis/available/etd-05242013-100406/
