الفهرس 
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Abstract
examined cases were subjected to pasteurella
isolation, the samples were collected from different
localities in sharkia province, 31 isolates gave a
positive biochemical results to pasteurella multocida.
Pasteurella multoe ida was isolated from different
organs in a decreasing manner, 35.48%,29.03%, 16.13%,
9.67%, 6.45% and 3.22% from Heart blood, liver, ovary,
Nasal cleft, bone marrow and lung respectively while
the organism could not be isolated from wattles and
joints. Fowl cholera was more common in native breads than
in foreign breeds with representative isolation frequency
of 14.01% and 4.45% respectively.
Serological typing of 31 isolates of Pasteurella
multocida revealed that 16 isolates belonged to 8:A
serotype, 7 isolates to 5: A serotype, 3 isolates to -: A
(untypable - A), 2 isolates to 2:0 serotype, 2 isolates
to -: 0 serotype (untypable -D) and one isolate to 9: A
serotype. Serum samples were collected from vaccinated birds
(5 times with for_lized vaccine of pasteurella mult.