Bacteriological studies on bacterial pathogens isolated from broiler chickens with swollen head syndrome
Journal Title: Journal of Veterinary Medical Research - Year 2018, Vol 25, Issue 1
Abstract
This work was planned to investigate the bacteria isolated from broiler chickens head suffered from naked eye pathological lesions. Out of 200 examined head lesions, the result revealed that the major pathogens associated with swollen head syndrome (SHS) were Escherichia coli, Streptococcus dysgalactiae and Pseudomonas aeruginosa. Antimicrobial sensitivity pattern against 11 different antimicrobials proved that isolates were resistant to most of the tested antimicrobial agents. PCR was applied on 4 MDR E. coli, 4 S. dysgalactiae and 2 P. aeruginosa for detection of some resistance and virulence genes. The results of E. coli isolates revealed that blaTEM gene was the most prevalent in all isolates (100%) followed by tetA (A), aada1, aada2 and aacC genes. Meanwhile tetA (B) gene was found in 3 (75%), while aadB gene was not detected in any isolates. All S. dysgalactiae proved to harbour 16srRNAgene also all S. dysgalactiae were 100% positive for tuf gene followed by speF gene which found in 2 isolate (50%). The results of PCR of P. aeruginosa isolates revealed that toxA gene was the most prevalent gene found in all isolates (100%) followed by lasI. Then, phzM gene was found in one isolate (50%).
Authors and Affiliations
Ismail Abd El-Hafeez Radwan, Mohamed Fathy Mohamed, Aya Kamal Eldin Ahmed
Keywords
Related Articles
- EP ID EP658298
- DOI -
- Views 210
- Downloads 0
The use of different stabilizers for improving integrity of the locally prepared lyophilized Brucella melitensis Rev 1 vaccine
Stability study of biological products especially living bacterial vaccines plays an important role for determination of product changes in maintenance period and ensures safety, efficacy and maintenance of biological pr...
Effect of prenatal and postnatal environmental enrichment on laboratory rats' welfare
This work was designed to investigate effects of environmental enrichment during gestation on behaviour, physiology and brain histology of enriched and non-enriched offspring rats. A total of 30 female wistar rats were r...
Some anatomical studies on the arterial supply and venous drainage of the tail of the buffalo "Bos Bubalis L."
Twenty tails of buffaloes were used in this study from apparently healthy adult animals. They are dissected to reveal their arteries and veins. Fourteen photographs illustrated the results in the study. The study reveale...
Pathogenicity of Aeromonas hydrophila isolated from diseased sharp teeth catfish, Clarias gariepinus, with special reference to the lethality of its extracellular products
A study was conducted to investigate the pathogenicity and the median lethal dose (LD50) of Aeromonas hydrophila isolated from clinically diseased catfish against apparently healthy homologous fish to evaluate the lethal...
Characterization of antimicrobial resistant bacterial pathogens recovered from cases of bovine mastitis with special reference to Staphylococcus aureus
In the current study, a total of 20 and 78 milk samples were collected from animals showed signs of clinical and subclinical mastitis, for isolation and identification of different causative pathogens in some dairy farms...