Centro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), Calle Nules 16, 12539, Castellón, Spain
Departamento de Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Instituto de Ciencias Biomédicas, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Avenida Seminario s/n, 46113, Moncada, Spain.
Vet Rec. 2020 Apr 4;186(13):415. doi: 10.1136/vr.105558. Epub 2020 Jan 24.
is the main pathogen involved in zoonotic gastrointestinal diseases. In 2018, European Regulation 2017/1495 on in broiler carcases came into force. In this context, the aim of the study was to assess the potential risk factors associated with exceeding the 1000 cfu/g (colony-forming units per gram) limit set by the EC in several slaughterhouses in Spain.
Data relating to 12 factors were collected using questionnaires. Samples were collected from 12 Spanish abattoirs in June, July and August 2017 (n=1725) and were analysed following the ISO 10272-2:2006 method.
The proportion of -positive samples was 23.7 per cent (n=409). Analysis of flock age (41-50 days) revealed a significantly increased odds ratio (OR) in enumeration (OR=7.41). Moreover, scalding temperature (51.9°C-54°C) was positively associated with an increase in OR (OR=2.75). Time in transit to slaughter for 1-1.5 hours showed a significant decrease in OR (OR=0.25), while time in transit for more than two hours showed an increase in OR (OR=4.44). With regard to carcase weight, a weight of 3.21-3.58 kg showed a decrease in OR (OR=0.01).
The outcomes of this study suggest that although most chickens are contaminated by the bacterium, the prevalence of those exceeding the 1000 cfu/g limit is not so high as thought.
是引起动物源性胃肠道疾病的主要病原体。2018 年，欧盟关于鸡只屠体中 的 2017/1495 号法规生效。在此背景下，本研究旨在评估与西班牙几家屠宰场超过欧盟规定的 1000cfu/g（每克菌落形成单位）限值相关的潜在风险因素。
使用问卷收集了与 12 个因素有关的数据。2017 年 6 月、7 月和 8 月，从西班牙 12 家屠宰场采集了 1725 个样本，并按照 ISO 10272-2:2006 方法进行了分析。
-阳性样本的比例为 23.7%（n=409）。对鸡群年龄（41-50 天）的分析显示，在计数方面，优势比（OR）显著增加（OR=7.41）。此外，烫漂温度（51.9°C-54°C）与 OR 增加呈正相关（OR=2.75）。运输到屠宰场的时间为 1-1.5 小时，OR 显著降低（OR=0.25），而运输时间超过两小时，OR 增加（OR=4.44）。关于胴体重量，3.21-3.58kg 的重量显示 OR 降低（OR=0.01）。
本研究结果表明，尽管大多数鸡只受到该细菌的污染，但超过 1000cfu/g 限值的鸡只比例并不像想象的那么高。
