Holt P S, Davies R H, Dewulf J, Gast R K, Huwe J K, Jones D R, Waltman D, Willian K R
USDA/ARS Egg Safety and Quality Research Unit, Athens, GA 30605, USA.
Poult Sci. 2011 Jan;90(1):251-62. doi: 10.3382/ps.2010-00794.
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.
从传统鸡笼转移到强化鸡笼或非笼养系统可能会影响在这种新环境中饲养的母鸡所产鸡蛋的安全性或质量，或两者兼而有之。鸡蛋的安全性可能会因肠道沙门氏菌肠炎血清型（肠炎沙门氏菌）或其他病原体污染内部内容物而在微生物学上发生改变，或两者皆有，也可能因二恶英、农药或重金属污染内部内容物而在化学上发生改变。质量可能会因蛋壳、蛋黄或蛋白完整性的变化以及功能、成分或营养的变化而受到影响。季节、母鸡品种、鸡群年龄和鸡群疾病疫苗接种状况也会相互作用，影响鸡蛋的安全性和质量，必须予以考虑。在大规模转向替代饲养系统之前，谨慎了解这些不同影响是明智的。
