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040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.10.10.Ph.D.2019.Sh.E
100 0 _aSherein Galal Mohamed Khoulosy
245 1 0 _aEffect of bacterial proteolytic enzymes on virulence and pathogenicity of avian influenza virus /
_cSherein Galal Mohamed Khoulosy ; Supervised Ahmed S.Shehata , Soad A.A. Abdelwanis
246 1 5 _aتأثيرالخمائرالمحللة البكتيرية علي ضراوة وقدرة إحداث المرض لفيروس انفلونزا الطيور
260 _aCairo :
_bSherein Galal Mohamed Khoulosy ,
_c2019
300 _a177 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Microbiology
520 _aTwo thousands cloacal swabs were collected from 100 poultry farms showing respiratory and diarrheic sings. All samples were examined bacteriologically for isolation of E.coli&Salmonella. The results revealed detection of Salmonella in 31 farms out of 100 examined farms with percentage 31%. Isolation of E.coliwas carried out and the results revealed isolation of E.coli from 67 farms with percentage 67% of examined 100 poultry farms. Detection of the proteolytic enzymes produced by bacterial isolates was done using Protease Agar Casein Assay. All collected samples were examined for detection of Avian Influenza viruses using RRT{u2013}PCR. HPAI (H5N1) virus was detected in 10 farms while LPAI (H9N2) was detected in 31 farms out of 100 examined farms. Effect of co-infection with HPAI & LPAI and proteolytic bacteria (Salmonella Enteritidisand E.coli O158) was carried out in SPF chicken. Morbidity and mortality were recorded as well as re-isolation and virus shedding were done
530 _aIssued also as CD
653 4 _aAvian influenza virus
653 4 _aH5N1
653 4 _aSalmonella
700 0 _aAhmed S.Shehata ,
_eSupervisor
700 0 _aSoad A.A. Abdelwanis ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c75472
_d75472