this experiment was conducted to compare the effects of multi-strain probiotic inclusion levels on performance, intestinal morphology, gut microflora and hematological changes in salmonella typhimurium (st) infected broiler chickens. a total of 120 day old ross 308 broiler chickens were distributed into 20 floor pens and reared for 10 days under 5 experimental treatments including a corn-soy ba...

background and aims: traditionally, plants have long been applied in the treatment of various diseases throughout the history of human life. the antimicrobial activity of plant extracts in the laboratory is studied on gram positive and negative strains of human infectious agents. the aim of this study was to evaluate the antibacterial activity of mentha longifolia against important human pathog...

conclusions the results indicated that dt increased anti-ops antibodies against the ops-dt compound. the antibody response to ops-dt was greater than that to ops alone. we conclude that ops-dt is an appropriate and acceptable vaccine candidate against salmonellosis. results two weeks after the first vaccination dose, there was no significant difference in the antibody titers of the ops and ops-...

plasmids play an important role in the virulence and antibiotic resistance of salmonella. salmonella carry plasmids having different size and number. plasmid profile analysis of single isolates of salmonella typhimurium and salmonella enteritidis revealed the presence of 4- plasmid profiles. salmonella serovars produce several type iii secretions including sop-e and sop –b. soap e is detected b...

BACKGROUND In sub-Saharan Africa, non-typhoidal Salmonella (NTS) are emerging as a prominent cause of invasive disease (bacteremia and focal infections such as meningitis) in infants and young children. Importantly, including data from Mali, three serovars, Salmonella enterica serovar Typhimurium, Salmonella Enteritidis and Salmonella Dublin, account for the majority of non-typhoidal Salmonella...

Genomic subtractive hybridization was performed between Salmonella enterica serovar Typhimurium LT2 and DT104 to search for novel Salmonella serovar Typhimurium DT104-specific sequences. The subtraction resulted mainly in the isolation of DNA fragments with sequence similarity to phages. Two fragments identified were associated with possible virulence factors. One fragment was identical to irsA...

Infections of pigs with Salmonella enterica subspecies enterica serovar Typhimurium (Salmonella Typhimurium) often result in the development of carriers that intermittently excrete Salmonella in very low numbers. During periods of stress, recrudescence of Salmonella may occur. The mechanism of stress related re-excretion of Salmonella by pigs is poorly understood and the aim of the presented st...

Studies of the expression of Escherichia coli fol alleles in Salmonella typhimurium indicated that fol regulatory functions are highly conserved between these bacterial species.

the present study was designed to investigate the prevalence of salmonella species, their molecular characterization and antibiotic resistance in backyard chickens. a total of 1125 samples were collected from backyard chickens in two consequent samplings. in the first part, samples were included of 820 poor recently hatched chicks, hatching residuals, egg shells in the nest floor, cloacal swabs...

We examined the effects of chlorine disinfection on Escherichia coli and Salmonella typhimurium in secondary-treated wastewater to determine whether such treatment might induce these bacteria into the viable but nonculturable (VBNC) state. In this state, cells lose culturability but retain viability and the potential to revert to the metabolically active and infectious state. To examine the eff...