The dynamics ofSalmonellaoccurrence in commercial laying hen flocks throughout a laying period
نویسندگان
چکیده
منابع مشابه
Laying Hen Heat and Moisture Production under Commercial
Astudy was carried out with the objective of establishing heat and moisture loads in three commercial egg laying units in Alberta under winter conditions. The units studied were typical of triple-deck, deep-pit, and shallow-gutter, caged systems. Each unit was monitored for six 24-h periods over 4 mo. Adata acquisition system was used tocollect the data necessary to carry outa complete heat and...
متن کاملMicrobiological impact of three commercial laying hen housing systems1
Hen housing for commercial egg production continues to be a societal and regulatory concern. Controlled studies have examined various aspects of egg safety, but a comprehensive assessment of commercial hen housing systems in the US has not been conducted. The current study is part of a holistic, multidisciplinary comparison of the diverse aspects of commercial conventional cage, enriched colony...
متن کاملRisk factors for Salmonella enterica subsp. enterica contamination in 519 French laying hen flocks at the end of the laying period.
A cross-sectional study was carried out to identify risk factors for Salmonella spp. contamination in French laying hen flocks at the end of the laying period. Five hundred and nineteen flocks were studied between October 2004 and September 2005. The Salmonella status of the flocks was assessed from 5 faeces samples (pooled faeces samples from cage flocks and foot swabs from flocks kept on the ...
متن کاملLaying Hen Welfare Fact Sheet
among the major stressors in poultry that cause suffering and death of chickens. Beak trimming, removal of 1/3 to 1/2 of the beak, is a routine husbandry procedure practiced in the poultry industry, including laying hens, broiler breeders, turkey and ducks, to prevent those undesirable behaviors. However, beak trimming is a painful procedure. There is a considerable body of morphological, neuro...
متن کاملAir Quality and Hen Health Status in Three Types of Commercial Laying Hen Houses
Environmental conditions and bird health are important elements in assessment of animal welfare for laying hen housing systems, but limited information is available comparing different types of systems. Three types of laying hen houses caged high-rise, caged manure-belt, and cage-free floor-raised were monitored for temperature, relative humidity, carbon dioxide, and atmospheric ammonia during ...
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ژورنال
عنوان ژورنال: Avian Pathology
سال: 2011
ISSN: 0307-9457,1465-3338
DOI: 10.1080/03079457.2010.544290