To clarify the factors for occurrence of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli in broilers, two flocks (1 day of age) fed a diet with or without antibiotics were kept in a broiler house sanitized with disinfectants. ESBL-producing E. coli, however, was detected at a concentration of over 10(6) CFU/g of feces at 9 days of age to 49 days of age in both broiler flocks. Th...

The rearing of poultry for meat production (broilers) is an agricultural food industry with high relevance to the economy and development of some countries. Periodic episodes of extreme climatic conditions during the summer season can cause high mortality among birds, resulting in economic losses. In this context, ventilation systems within poultry houses play a critical role to ensure appropri...

Understanding the fate of carbon (C) and nitrogen (N) inputs and outputs from commercial broiler operations is important for increasing the flock C and N efficiency and reducing gaseous emissions. This study was conducted to determine the C and N balance for broiler chickens grown in cages from day old to 42-d market age. Concentrations of ammonia (NH3), methane (CH4), carbon dioxide (CO2) and ...

OBJECTIVE High NH3 emissions from poultry houses are reported to have negative impacts on health, welfare and safety of birds and humans, and on the environment. Objective of the present study was to determine the effects of two litter amendments on the NH3 levels in broiler closed houses under hot-humid conditions. METHODS Giving a completely randomize design, nine closed houses, each housed...

Hansson, I. 2007. Bacteriological and Epidemiological Studies of Campylobacter spp. in Swedish Broilers Doctoral dissertation ISSN 1652-6880, ISBN 978-91-576-7362-6 Campylobacter jejuni is the most frequently reported cause of bacterial gastrointestinal illness in humans in Sweden. Chicken products are considered an important risk factor for human infection. This thesis analyses and identifies ...

The effect of a competitive exclusion (CE) product, Broilact, on Salmonella contamination of broiler chickens was studied on the farm and at the processing plant. In the first part of the study, two flocks per week, a CE-treated and an untreated control flock, were placed in similar broiler houses. The CE treatment was administered in the hatchery using a modified spray vaccination cabinet. Sal...

Analysis of field data collected over several years in three poultry housing systems (narrow caged-layer houses, high-rise caged-layer houses, and broiler-breeder layer houses) indicated that the baited jug-trap was a reliable method of sampling house flies, Musca domestica L.; sticky ribbons provided additional information on two other fly species. Relative frequency of house fly capture indic...

IN 1924 another organisation entered the halfway house field. This was the Ex-Services Mental Welfare Society (ESMWS) which was formed in 1919 to deal with the mental problems of ex-servicemen which had been brought on by their service in the war. Three homes are now run by this Society. "Tyrwhitt House" was opened in 1946 and is for men in need of a short period of rest and rehabilitation (ave...

A study was conducted to compare the growth performance as well as blood and carcass variables of two broiler strains reared in a conventional broiler house and a modified greenhouse equipped with cooling pads and tunnel ventilation system. Eight hundred day-old chickens of two commercial strains (Ross  308 and Lohmann) were selected and placed in  8 floor pens (4 pens of  50 broilers for each ...

BACKGROUND Following increased rates of human campylobacteriosis in the late 1990's, and their apparent association with increased consumption of fresh chicken meat, a longitudinal study was conducted in Iceland to identify the means to decrease the frequency of broiler flock colonization with Campylobacter. Our objective in this study was to identify risk factors for flock colonization acting ...