TY  - SER
AU  - Abd EL-Khalik,M.A.
AU  - Tolba,Susan K.
AU  - Tawfik,Hoda I.
AU  - EL-Koffy,Mervat A.
AU  - Hassan,Eman Ahmed
AU  - EL-Assely,Salwa A.
TI  - Preparation of gumboro disease vaccine from intermediate strain and its field application private
KW  - Virus diseases in poultry
KW  - Poultry
KW  - Virus diseases
N1  - Includes references
N2  - A new live infectious bursal disease (!BDV) vaccine (Intermediate strain) was prepared, titrated and tested experimentally and in the field. Diffcrent vaccinal programs were tried and the immune response was evaluated. The results obtained from both experiment and field application proved that the prepared new vaccine has a good protection against virulent IBDV either in case of high maternally immune chicks or low maternally immune chicks
UR  - http://nile.enal.sci.eg/EALE/2005/VMJ/5305/3/809.pdf
ER  -