Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
Zoonoses Public Health. 2011 Aug;58(5):304-11. doi: 10.1111/j.1863-2378.2010.01372.x. Epub 2010 Sep 28.
From 2012 onwards, housing of laying hens in conventional battery cages will be forbidden in the European Union and only enriched cages and non-cage housing systems such as aviaries, floor-raised, free-range and organic systems will be allowed. Although this ban aims at improving the welfare of laying hens, it has also initiated the question whether there are any adverse consequences of this decision, especially with respect to the spread and/or persistence of zoonotic agents in a flock. A zoonotic agent that is traditionally associated with the consumption of eggs and egg products is Salmonella enteritidis. This paper provides a summary of the current knowledge regarding the direct and indirect effects of different housing systems on the occurrence and epidemiology of Salmonella in laying hen flocks.
自 2012 年起，在欧盟，传统的蛋鸡笼养方式将被禁止，只有丰富型鸡笼和非笼养系统，如开放式鸡舍、层叠式鸡笼、散养和有机系统将被允许。尽管这项禁令旨在改善蛋鸡的福利，但它也引发了一个问题，即这项决定是否会产生任何不利后果，特别是在禽类中传染病原体的传播和/或持续存在方面。传统上与食用鸡蛋和蛋制品有关的一种人畜共患病原体是肠炎沙门氏菌。本文总结了目前关于不同饲养系统对蛋鸡群中沙门氏菌发生和流行病学的直接和间接影响的知识。
