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South African Journal of Animal Science
On-line version ISSN 2221-4062
Print version ISSN 0375-1589

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SHAFEY, T.M.; HUSSEIN, E.O.S.  and  AL-BATSHAN, H.A.. Effects of ultrasonic waves on eggshell strength and hatchability of layer-type breeder eggs. S. Afr. j. anim. sci. [online]. 2013, vol.43, n.1, pp.56-63. ISSN 2221-4062.


 


 

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