Pathogenicty of infectious bursal virus field isolates to seronegative commercial male layer chickens.

Citation:
Pathogenicty of infectious bursal virus field isolates to seronegative commercial male layer chickens. , Amer, M. M., kutkat M. A., M.EL-Bayomi K., Shakal ABD M. E. - S., and EL-Gaied Sherein Abd S. , Proc. Sci. 4th Inter., Conf., Vet. Div. NRC, Dokki, 26- 28 february,, p.71-83., (2008)
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