Quail, like chickens, are susceptible to H5N1 subtype highly pathogenic avian influenza virus (HPAIV). Both birds experience high mortality, but quail usually survive a few more days than chicken. To understand why, we monitored quail and chickens after inoculation with 10(6) fifty-percent egg infectious doses of HPAIV A/whooper swan/Aomori/1/2008 (H5N1). The clinical course initiated as depres...

Tumor necrosis factor receptor-associated factor 3 (TRAF3) is a crucial regulator that suppresses c-Jun N-terminal kinase and non-canonical nuclear factor-kB signaling, but facilitates type I interferon production. To determine TRAF3 function in innate immune responses among birds, particularly chicken, we cloned and characterized the chicken TRAF3 gene (chTRAF3) and detected its tissue express...

Beninati C., Reich F., Muscolino D., Giarratana F., Panebianco A., Klein G., Atanassova V. (2015): ESBL-producing bacteria and MRSA isolated from poultry and turkey products imported from Italy. Czech J. Food Sci., 33: 97–102. ESBL and MRSA-producing bacteria in food-producing animals may contribute to increased incidences of infection in humans. This study was carried out on 38 samples obtaine...

We examined the utility of infecting chicken embryos as a means of evaluating the virulence of different Francisella sp. strains and mutants. Infection of 7-day-old chicken embryos with a low dose of F. novicida or F. tularensis subsp. holarctica live vaccine strain (LVS) resulted in sustained growth for 6 days. Different doses of these two organisms were used to inoculate chicken embryos to de...

This is a case-control study aimed at identifying risk factors for intestinal infection with Campylobacter jejuni. Cases were defined as subjects with diarrhoea occurring in community cohorts or presenting to General Practitioners (GPs) with Campylobacter jejuni in stools. Controls were selected from GP lists or cohorts, matched by age, sex, and GP practice. Travel abroad and consumption of chi...

Multilocus sequence typing (MLST) and antibiotic resistance patterns of Campylobacter jejuni and Campylobacter coli from retail chicken meat showed high overlap with isolates collected at slaughterhouses, indicating little selection along the production chain. They also showed significant common sequence types with human clinical isolates, revealing chicken meat as a likely source for human inf...

conclusions our results demonstrated a novel h7n9 virus in chickens in taizhou city in 2013 that may pose a potential risk to public health. results of 150 samples tested, 7 were detected to be h7n9 positive which all were collected from chickens. also, a novel h7n9 virus strain (a/chicken/jiangsu/1021/2013) was isolated and studied. phylogenetic analysis showed the novel isolated h7n9 virus ha...

Title of Document: GENOME-WIDE ANALYSIS OF CHICKEN MIRNAS AND DNA METHYLATION AND THEIR ROLES IN MAREK’S DISEASE RESISTANCE AND SUSCEPTIBILITY. Fei Tian, Doctor of Philosophy, 2012 Directed By: Associate Professor Dr. Jiuzhou Song, Department of Animal and Avian Sciences Marek’s disease (MD) is a T cell lymphoma in chickens and causes high mortality and morbidity in productive chickens. Two inb...

The relative importance of MHC genes and background genes in the genetic control of disease susceptibility and the development of protective immunity to E. tenella infection was investigated in eight different strains of 15I5-B congenic and four inbred chicken strains. RPRL 15I5-B congenic chickens that share a common genetic background but express different B haplotypes demonstrated wide varia...

chicken infectious anaemia is a viral disease in young chickens which characterized by aplastic anaemia and immunosuppression. between january 2004 and july 2005, an unusual hemorrhage in subcutaneous and intramuscular tissues of broiler chickens at slaughter houses of mashhad, isfahan and tehran provinces were occurred. postmortem examination revealed severe hemorrhages in the wings and muscle...