Heterophil chemotaxis, in response to chemotactic factors generated by three different strains of staphylococcal bacteria, was measured using the modified Boyden-chamber technique. Heterophils were obtained from healthy 6-to-8-week-old broiler chickens. Each bacterial strain generated factors that were chemotactic for chicken heterophils. Factors generated by two pathogenic isolates of Staphylo...

The presence of rotavirus infection in broiler chickens (1-2 weeks old) was studied. A total of 232 faecal specimens were collected during the period from July to September 2004 and examined by polyacrylamide gel electrophoresis and silver staining (PAGE-ss) technique for the presence of rotavirus dsRNA in the Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural Univer...

BACKGROUND Antimicrobial usage is considered the most important factor promoting the emergence, selection and dissemination of antimicrobial-resistant microorganisms in both veterinary and human medicine. The aim of this study was to investigate the prevalence and genetic basis of tetracycline resistance in faecal Escherichia coli isolates from healthy broiler chickens and compare these data wi...

Campylobacter jejuni isolates possess multiple adhesive proteins termed adhesins, which promote the organism's attachment to epithelial cells. Based on the proposal that one or more adhesins are shared among C. jejuni isolates, we hypothesized that C. jejuni strains would compete for intestinal and cecal colonization in broiler chicks. To test this hypothesis, we selected two C. jejuni strains ...

Enterococci are members of the lactic acid bacteria family and are responsible for many food spoilage and fermentations. Some strains of this microorganism are used as probiotics in humans and animals to improve host immunity. However, some Enterococci are important pathogens which cause severe infections. Some strains of Enterococci are resistant to common antibiotic...

Measurement of haematological parameters provides valuable information for evaluation of health status of man and animals, but due to lack of reference values for avian blood profiles, it is not widely used in poultry. This study has contributed to the current knowledge on avian blood profiles, or more specifically demonstrated leukograms and haemograms of four main broiler strains (Ross, Cobb,...

Broiler breast fillets are sometimes characterized grossly by white parallel striations in the direction of the muscle fibers, and the condition is referred to as white striping. Depending on the severity of white striping, fillets can be classified as normal (NORM), moderate (MOD), or severe (SEV). The present study was intended to determine the factors associated with the occurrence of white ...

23 Avian leukosis virus subgroup J (ALV-J) was first isolated from meat-type 24 chickens in 1988. No field cases of ALV-J infection and tumors in layer chickens were 25 observed worldwide until 2004. However, layer flocks in China have experienced 26 outbreaks of this virus in recent years. The molecular epidemiology of ALV-J strains 27 isolated from layer flocks was investigated. The env genes...

Avian leukosis virus subgroup J (ALV-J) was first isolated from meat-type chickens in 1988. No field cases of ALV-J infection or tumors in layer chickens were observed worldwide until 2004. However, layer flocks in China have experienced outbreaks of this virus in recent years. The molecular epidemiology of ALV-J strains isolated from layer flocks was investigated. The env genes of 77.8% (21/27...

BACKGROUND: Newcastle disease virus (NDV) is one of the most principal contagious diseases with a significant role in multifactorial respiratory diseases in the poultry industry. OBJECTIVES: This study aims to evaluate and detect NDVs in multicausal respiratory diseases. METHODS: A total of 180 tracheal swabs were collected from 20 ...