Fly screens that prevented influx of flies in 20 broiler houses during the summer of 2006 in Denmark caused a decrease in Campylobacter spp.-positive flocks from 51.4% in control houses to 15.4% in case houses. A proportional reduction in the incidence of chicken-borne campylobacteriosis can be expected by comprehensive intervention against flies in broiler production houses.

marek's disease (md) is a common lymphoproliferative disease of chickens, usually characterized by mononuclear cellular infiltration in different organs. the disease is caused by a herpes virus and is transmissible. md has been a common, important problem for poultry industry worldwide, as well as, in our country, iran. the aim of present study was to have an estimation of the incidence of...

This study was conducted to molecularly detect avian adenoviruses in broiler flocks showing liver lesions and respiratory syndrome in northeast Iran. In total, 60 tissue samples were collected from broiler farms with liver lesions, respiratory syndrome and also from clinically healthy flocks. Six samples were positive; however, three samples were selected for molecular studies. PCR products wer...

salmonella spp. are important food borne pathogens worldwide that frequently infect poultry flocks. this cross-sectional study was conducted to determine the prevalence of salmonella spp. colonization in broiler flocks in shiraz (southern iran) and to find the possible association of infection status with some potential risk factors including vaccination program and use of antibiotics. during o...

Amplified fragment length polymorphism (AFLP) analysis was used for genetic typing of 88 Campylobacter jejuni subsp. jejuni and 4 Campylobacter coli isolates. Restriction endonucleases HindIII and HhaI were used in combination with the selective PCR primers HindIII+A and HhaIII+A. Selectively amplified PCR products were separated in an ABI 310 genetic analyser. After normalization, pattern simi...

BACKGROUND Lighting is used during conventional broiler grow-out to modify bird behaviour to reach the goals of production and improve bird welfare. The protocols for lighting intensity vary. In a field study, we evaluated if the lighting practices impact the burden of Salmonella in broiler flocks. METHODS Conventional grow-out flocks reared in the states of Alabama, Mississippi and Texas, US...

This pilot analysis was conducted with data from 52 conventional grow-out broiler flocks in a prospective field observational study in the southeastern United States during 2003-2006. Each flock was sampled for Salmonella 1 wk before the end of grow-out, upon arrival at the processing plant, and during processing (prior to and immediately after carcass chilling). The broiler litter was sampled ...

Mycoplasmas are important  avian  pathogens,  which  can  cause  both  respiratory  disease  and  synovitis  in  poultry  that  result  in  considerable  economic  losses  to  the  poultry  industry  all  over  the  world.  The  aim  of  this  study  was  to  determine  the  prevalence  of  Mycoplasma  gallisepticum  and  Mycoplasma  synoviae  infections  among  commercial  poultry  flocks  in ...

A molecular study of intestinal samples from 21 broiler flocks with a history of enteritis revealed that 23.8% and 14.3% were positive for chicken astrovirus (CAstV) and avian rotavirus (ARV), respectively. CAstV and group A ARV were simultaneously detected in only one broiler flock. Birds in this group developed the significant intestinal lesions characterized by frothy contents, paleness, and...

Campylobacter, a foodborne pathogen closely associated with poultry, is considered to be an important agent of human gastroenteritis in New Zealand. The pathways involved in the contamination of poultry flocks remain unclear; however, many vectors, such as insects, rodents, and wild birds, have been implicated. Infestation of poultry houses by insects, particularly darkling beetles (Alphitobius...