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The efficacy of some probiotics and prebiotics on the prevalence of E. coli and the immune response of chickens
Faculty
Science
Year:
2023
Type of Publication:
ZU Hosted
Pages:
Authors:
Gamal abdelaziz abdelhamid
Staff Zu Site
Abstract In Staff Site
Journal:
Poultry Science Elsevier
Volume:
Keywords :
, efficacy , some probiotics , prebiotics , , prevalence , , coli
Abstract:
The present study aimed to investigate the efficacy of probiotics and prebiotics in controlling Escherichia coli (E. coli) spp. isolated from chicken. A total of 230 birds representing 19 different commercial breeds were taken from various points. Birds were monitored for postmortem and clinical investigation. Aseptically collected liver samples, lungs, kidneys, hearts, and yolk sacs were then subjected to bacterial isolation and identification. E. coli were observed in 9 pooled samples from 120 examined with an incidence of 7.5%. Nine farms were E. coli-positive, with an incidence of farm infection of 47.3%. The 9 suspected isolates of E. coli were profiled by morphological and microbiological identification of the colony, motility, and gram reaction. The serogroup analysis showed 9 different E. coli for which 3 other groups were identified: 2 E. coli O78, 3 E. coli O111, and 4 untyped groups. Nine isolates of E. coli were subjected to PCR. Molecular detection of 9 strains was conducted to find the virulence genes of E. coli strains (8 STX1, 4 STX2, and 9 EAE). Probiotics and prebiotics significantly increased the total erythrocytic and leukocytic counts throughout the experiment. The phagocytic percentage's main values at 14 d were 47 and 30%, respectively. An increase in the humoral immunity against Newcastle disease (ND) was noticed after ND vaccination. The geometric mean (HI) was 5.9 and 4.2 for probiotic and prebiotic, respectively. It could be concluded that probiotics and prebiotics could stimulate a nonspecific immune response against experimental infection with a virulent strain of E. coli spp.
Author Related Publications
Gamal abdelaziz abdelhamid, "Partial Purification of two Novel Variants of Bacteriocins Produced by Lactic Acid Bacteria", IDOSI Publications, 2014
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Gamal abdelaziz abdelhamid, "Antimicrobial activity of Enterococcus faecium NM2 Isolated from Urine : Purification, Charactrization and Bactericidal Action of Enterocin NM2", Knowlege review Malaysia, 2014
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Gamal abdelaziz abdelhamid, "Evaluation of the Antimicrobial Activity, Starter Capability and Technological Properties of Some Probiotic Bacteria Isolated from Egyptian Pickles", Life Science journal, 2014
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Gamal abdelaziz abdelhamid, "Incidence and virulence of Bacillus cereus isolated from Egyptian foods during four seasons", Acadimic Journals, 2012
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Gamal abdelaziz abdelhamid, "Biological Characterization and Inhibition of Streptococcus pyogenes ZUH1 Causing Chronic Cystitis by Crocus sativus Methanol Extract, Bee Honey Alone or in Combination with Antibiotics: An In Vitro Study", MDPI, ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND, 2019
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Mahmoud Mohamed Ibrahiem Ibrahiem Elagawany, "Feeding time can alleviate negative effects of heat stress on performance, meat quality and health status of turkey", British Poultry Science, 2017
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