The impact of different housing systems on egg safety and quality
| Autor: | Richard K. Gast, K. R. Willian, J. K. Huwe, Peter S. Holt, D. Waltman, Robert Davies, Deana R. Jones, Jeroen Dewulf |
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| Rok vydání: | 2010 |
| Předmět: |
Veterinary medicine
food.ingredient Salmonella enteritidis Eggs Biology Furnished cages Animal Welfare Toxicology Egg Shell food Yolk Food microbiology Animals Humans Animal Husbandry Social Responsibility General Medicine Contamination Pesticide Housing Animal Breed Salmonella Infections Food Microbiology Animal Science and Zoology Female Flock Chickens Nutritive Value |
| Zdroj: | Poultry science. 90(1) |
| ISSN: | 0032-5791 |
| Popis: | A move from conventional cages to either an enriched cage or a noncage system may affect the safety or quality, or both, of the eggs laid by hens raised in this new environment. The safety of the eggs may be altered either microbiologically through contamination of internal contents with Salmonella enterica serovar Enteritidis (Salmonella Enteritidis) or other pathogens, or both, or chemically due to contamination of internal contents with dioxins, pesticides, or heavy metals. Quality may be affected through changes in the integrity of the shell, yolk, or albumen along with changes in function, composition, or nutrition. Season, hen breed, flock age, and flock disease-vaccination status also interact to affect egg safety and quality and must be taken into account. An understanding of these different effects is prudent before any large-scale move to an alternative housing system is undertaken. |
| Databáze: | OpenAIRE |
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