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003 EG-GiCUC
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008 160529s2016 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.10.03.Ph.D.2016.Wa.T
100 0 _aWalaa Samir Tawfeek Ahmed
245 1 0 _aTrials for control of some bacterial infections in cultured Tilapia fish /
_cWalaa Samir Tawfeek Ahmed ; Supervised Mohamed Moustafa Mohamed Moustafa , Mohamed Abdelaziz Ahmed , Mona Moustafa Husien
246 1 5 _aمحاولات لمقاومة بعض العدوى البكتيرية فى أسماك البلطى المستزرعة
260 _aCairo :
_bWalaa Samir Tawfeek Ahmed ,
_c2016
300 _a121 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Animal Diseases
520 _aThis study was conducted to investigate the antibacterial effect of aqueous and ethanol, extracts of Spirulina platensis and Nigella sativa on some fish pathogenic bacterial Gram-negative bacteria (Aeromonas hydrophila , A. sobria , Flavobacterium columnare , Vibrio paraheamoliticus,) Gram-positive bacteria ( Enterococcus fecalis and Streptococcus dysgalactiae ). And evaluate the effect of Spirulina platensis, Nigella sativa and both of them at rate (0.75%, 0.5% and mix of them ) respectively as feed additive for 8 weeks on growth performance, blood picture and immune system in Oreochromis niloticus (O. niloticus) before and after challenge with A. hydrophila .and resistance against Aeromonas hydrophila and Streptococcus dysgalactiae. The results obtained revealed that aqueous extract of Spirulina platensis and Nigella sativa has no antibacterial effect on both Gram-positive and negative bacteria. Ethanol extract of Both Spirulina platensis and Nigella sativa have antibacterial effect E. faecalis and St. dysgalactiae as well as V. parahemolyticus, Fl. columnare, A. hydrophila and A. sobria).Besides E. faecalis was more sensitive to ethanol extract than other bacteria . and The results also indicated that the addition of Spirulina or Nigella to diet improve growth performance, health condition, enhancement cellular and humoral immune responses, specifically (phagocytic activity, lysozyme, nitric oxide, total protein and its fraction especially Þ globulin) either before and after challenged tests and increase resistance against bacterial infection. The combination of Spirulina platensis and Nigella sativa showed the highest values of growth performance, immunological parameters and give the lowest mortality percent against bacterial infection
530 _aIssued also as CD
653 4 _aImmunostimulants
653 4 _aNigella sativa
653 4 _aSpirulina platensis
700 0 _aMohamed Abdelaziz Ahmed ,
_eSupervisor
700 0 _aMohamed Moustafa Mohamed Moustafa ,
_eSupervisor
700 0 _aMona Moustafa Husien ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aAml
_eCataloger
905 _aNazla
_eRevisor
942 _2ddc
_cTH
999 _c56713
_d56713