الفهرس 
Cover Page Title in EnglishOnly 14 pages are availabe for public view
 |  | from | 97 |  |  |
| | | from | 97 | | |
Abstract
The present study was carried out to investigate the role of fish as intermediate host for transmitting some
parasites o zoonotic importance in Behera governorate.
A total of 240 fish samples, 80 each of Mugil cepha—
lus (Eon), Tilapia zilli (Bolti akhder) and Clarias laz—
era (Karmout), were collected from differentlocalities
in Bhera governorate. Fishes were examined for detection
of encysted iJ}ptacercariae in their tissues and organs,
specially muscles. The rate of metacercaril infest—
ation was 82.5%, 65% and 71.25% in Mcephalus, T.zilli
and C.lazera, respectively. The rate of metacercarial infestation
in the different body parts of fish as related
to the number of infected fishes.
Regions Organs
Fsh specis
Head Trunk Tail Eye Scales gills liver
region region region skin
fgii cephai 92.42% 80.30% 84.84%.O6% 3.03% -
Muapia zilli 8846% 76.92% 8O.775.38% — 3.85% —
1arias lazera 82.24% 87.72% 92.98% - 35.09 l9.3O2.28 %
The average number of encysted metacercariae per gram f :
infested fish meat was 21.04, 17.04 and 28.046 in M.ceph—
alus, T.zillj and C.lazera, respectively.
Six types of digenean encyated metacercaniae were
isolated from the different investigated, fish species,
they belonged to the families Heterophyidae, cyathocoty— lidae and Echinostornatjdae. They were identified after
experimental infection in dogs.
Experimental infection of dogs with infested fishes revealed 5 flukes of zoonotic importance, they were:
Haplorchis pumilio, Pygidiopsjs genata, Mesostephanus ap— pendiculatus, prohemistonum vivax and Echirochasmus perf oliatus. In exp. I (infection with T.zjllj) all theafore mentioned flukes were detected in recovery rate of 35,6%, In exp. II (infection with Clazera) the H.puinilio, M. appendiculatus and p.vivax were detected in recovery rate of 27.18%. In exp. III. (infection with raw M.cephalus) the H.pumilio; P.genata, M.appendiculatus and E.perfoliatus were detected in recovery rate of 22.57%. In exp. IV (infection with salted M.cephalus for 5 ciays) only M.app— endiculatus and E.perfoliatus were recovered in rate 12.11%. In exp. V (infection ith salted M.cephalus for
10 days) only E.perfoliatus was found in a rate of 3.12%. In exp. VI (infection with M.cephalus salted for 14 days) no flukes were recovered. In exp. VII (infection with grilled M.cephalus) only E.perfoliatus was found in a rate of 1.92%.
The total number of flukes recovered in each exeri— nent was 1507, 2099, 1201, 633, 161, 0 and 101 in the seven experiments, respect:ively.