A free range system of poultry production is an important economical investment to most the poor farmers as a source income and protein, however it faces several challenges including parasitic diseases such ectoparasite infestation. cross-sectional study was undertaken determine prevalence ectoparasites, well assess possible predisposing risk factors infesting free-ranging local chickens in urb...

A cross sectional study was conducted from Nov. 2008 to April 2009 to identify and estimate prevalence of ectoparisites of poultry in intensive and backyard chicken farm at Wolayta Soddo town southern nation nationalities and peoples region of Ethiopia. Three hundred eighty four chickens were selected using systematic random sampling technique. Ectoparasites were collected from different parts ...

This study compared SYBR Green real-time quantitative PCR (qPCR) with standard plate counting for the enumeration of Streptococcus mutans in oral samples. Oral samples (n = 710) were collected from high-caries-risk children for quantification of S. mutans by qPCR using primer pairs. The S. mutans copy number was calculated with reference to a qPCR quantification cycle (Cq) standard curve and co...

OBJECTIVE This study aims to elucidate the effect of IgY anti ComD on the biological properties of Streptococcus mutans. (S. mutans) ComD is an interspecies quorum-sensing signaling receptor that plays an important role in biofilm formation by S. mutans. MATERIALS AND METHODOLOGY Egg yolk IgY was produced by the immunization of chickens with a DNA vaccine containing the ComD DNA coding region...

Streptomycin-resistant strains of Streptococcus mutans were reliably established in 3 subjects by the use of artifical fissures (AF) containing adherent growth of the Strep. mutans strain. The intraoral spread of these implanted Strep. mutans strains was monitored in the subjects while the AF was in situ and for up to 26 weeks after the AF was removed. During the 26 weeks, all tooth surfaces an...

A sequence of 1647 base pairs in length of Streptococcus mutans DNA that encodes for a 63-kDa protein with significant amino acid similarity with fibronectin-binding proteins of Streptococcus pyogenes and Streptococcus gordonii was cloned. The putative recombinant fibronectin-binding protein of S. mutans was purified using affinity chromatography and the cloned protein was used to prepare polyc...

Streptococcus mutans has been recognized as an important etiological agent in human dental caries. Some strains of S. mutans also produce bacteriocins. In this study, we sought to demonstrate that bacteriocin production by S. mutans strains GS5 and BM71 was mediated by quorum sensing, which is dependent on a competence-stimulating peptide (CSP) signaling system encoded by the com genes. We also...

Background and aim: The present study examined the in vitro effect of pure glycoside Stevioside hydrate on pH, growth and biofilm formation of Streptococcus mutans. Method: S. mutans were supplemented with different concentrations of Stevioside hydrate. Bacterial growth, metabolism and effect on biofilm formation were examined. Results: The presence of Stevioside hydrate had no significant effe...

Three strains of Streptococcus mutans belonging to serotypes a, c, and f were transformed to streptomycin resistance by deoxyribonucleic acids derived from homologous and heterologous streptomycin-resistant strains of S. mutans and Streptococcus sanguis strain Challis. Homologous transformation of S. mutans was less efficient than heterologous transformation by deoxyribonucleic acids from other...