000 02666cam a2200349 a 4500
003 EG-GiCUC
005 20250223031641.0
008 170121s2016 ua o f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.10.03.M.Sc.2016.Me.S
100 0 _aMervit Mohammed Salim
245 1 0 _aStudies on E. coli infections in broiler chickens /
_cMervit Mohammed Salim ; Supervised Mostafa Ahmed Bastami , Mohamed Mahros Amer , Ahmed Samir Mohamed Shehata
246 1 5 _aدراسات عن عدوى الميكروب القولونى فى دجاج التسمين
260 _aCairo :
_bMervit Mohammed Salim ,
_c2016
300 _a138 P. :
_bphotographs ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Veterinary Medicine - Department of Animal Diseases
520 _aThe efficacy of protection of prepared inactivated E. coli vaccines were compared with commercially available live attenuated E. coli (Paulvac®) vaccine. Four hundred and fifty one day old broiler cobb chickens were used. Gr (1) were kept as non vaccinated non challenged control negative gr, groups (2-5) were received monovalent prepared inactivated vaccine from E. coli O158 strain , O78 strain ,O114 strain , O125 strain; respectively. While chicken gr (6) received inactivated prepared polyvalent vaccine contains O125,O44,O114,O158,O78 strains, gr (7) received both used polyvalent inactivated vaccine together with live attenuated E. coli vaccine, gr (8) received live attenuated E. coli vaccine only, finally gr (9) received both inactivated prepared O78 E. coli vaccine together with live attenuated E. coli vaccine. Groups (2-5) were challenged intra-crop with homologues viable serogroups O158 strain , O78 strain ,O114 strain, O125 strain; respectively. While grougs (6, 7, 8 and 9) were challenged intra-crop with heterologues viable serogroups O158, O78, O114, O125 and O44. Challenge was done 2 weeks after vaccination, followed by 10 days observation period, performance parameters including body weight/ gm, feed intake and feed conversion rate (FCR) were calculated together with lesion score, clinical signs, mortality rate and histopathological findings were studied
530 _aIssued also as CD
653 4 _aE. coli vaccine
653 4 _aInactivated
653 4 _aLive
700 0 _aAhmed Samir Mohamed Shehata ,
_eSupervisor
700 0 _aMohamed Mahros Amer ,
_eSupervisor
700 0 _aMostafa Ahmed Bastami ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c59502
_d59502