الفهرس 
Arabic Summaryيوجد فقط 14 صفحة متاحة للعرض العام
 |  | from | 99 |  |  |
| | | from | 99 | | |
المستخلص
1) 146 dead duk and 387 nassi cleft and tracheal swabs from appanenbly healthy duD1ce collected from different provinces (ssiix Giza and 1 Gidid) has beerL examined haeteriologLcally La trials for isolation of duck cholera udoroorganism,
2) Eleven jso].abes we:’e obtained and their biochemical behaviour was closely related to Pasteurelia muitocida organism,
3) Serological typing by Kcapsular antigen showed
6 of the isolates würo founC as typo P “Carter”, 4 as type A “Carter’ while one iolte remained untypable
4) Ezperimena1 infeebion of healthy ducks with the isolated strains showed that 7 strains were highly virulen% 3 were of moderate virulence and one was more or less avirulent,
5) Sensitivity of the eleven isoItes to some antimicrobial agentB wa studied,
6) It is reeoinrnenãed to use both type A and D in vaceine preparation in A.RE,
7) Pastourella naultocida could not be recovered from the examined apparertly haJ.thy dtcks
8) IXring this investigatni an ineresti.ng point was that from the exemimed dead ducks we had recovered 2 isolates which were more ciosei to the iC of Th•steur&lia anatipeti— fer. The work on such iso1es was cenfinied by morphclogcal,
I biochemical as well as mice toou2eion, tests.
This may be rored as the first case in A,R,E, as uptill now studiea en it are still lacking.