منابع مشابه
Laying 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 کاملInfluence of commercial laying hen housing systems on the incidence and identification of Salmonella and Campylobacter1
The housing of laying hens is important for social, industrial, and regulatory aspects. Many studies have compared hen housing systems on the research farm, but few have fully examined commercial housing systems and management strategies. The current study compared hens housed in commercial cage-free aviary, conventional cage, and enriched colony cage systems. Environmental and eggshell pool sa...
متن کاملDust and endotoxin in laying hen dwellings
Only healthy laying hens are capable of producing an average of 280 eggs in 1 year of exploitation. Production of consume eggs takes place in intensive housing systems where the laying hens are still mainly kept in cages under controlled conditions. Technical infrastructure and hygiene quality do not guarantee a production atmosphere completely free from pollutants, including potential patholog...
متن کاملRisk Factors Associated With Salmonella in Laying Hen Farms: Systematic Review of Observational Studies.
Salmonella contamination of laying hen flocks and shell eggs is associated with various management and environmental factors. Foodborne outbreaks of human salmonellosis have been traced back to consumption of Salmonella-contaminated shell eggs. In the present study, a systematic literature review was conducted to identify and provide an evidence-based overview of potential risk factors of Salmo...
متن کاملIn vitro invasion of laying hen ovarian follicles by Salmonella Enteritidis strains.
Salmonella is the major foodborne bacterial pathogen worldwide. Among numerous serotypes, Salmonella Enteritidis (SE) is one of the most common Salmonella serotypes responsible for human infections in the United States. The main source of SE outbreaks is foods associated with raw or undercooked chicken eggs. Salmonella Enteritidis is the only serotype that routinely contaminates eggs. The trans...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1972
ISSN: 0032-5791
DOI: 10.3382/ps.0511268