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研究报告:肉鸡胴体微生物污染评估——身体部位及采样方法研究

Research Note: Evaluation of microbial contamination on broiler carcasses - an investigation of body parts and sampling methods.

作者信息

Wyink Bastian, Kirse Alina, Reich Felix

机构信息

Frankenförder Forschungsgesellschaft mbH (FFG), Luckenwalde, Germany.

Institute of Biometry, Epidemiology and Information Processing, WHO Collaborating Centre for Research and Training for Health at the Human-Animal-Environment Interface, University of Veterinary Medicine, Hannover, Germany.

出版信息

Poult Sci. 2025 Jul 5;104(10):105538. doi: 10.1016/j.psj.2025.105538.

Abstract

We investigated whether samples of the neck skin from 24 broiler chickens, which were taken from broiler carcasses after chilling, are representative for the microbiological load (TVC - total viable count 3.99 log cfu/g, E. coli 2.06 log cfu/g, Campylobacter spp. 2.04 log cfu/g) of the entire skin. No significant difference was found between the contamination of the neck skin and the other skin areas analysed (back, breast, abdominal and leg skin) for any of the target germs. We also compared results from two sampling methods (neck skin excision and whole carcass rinse) to check whether both methods yield comparable results. Significantly higher mean values were found for the TVC in the whole carcass rinse samples (4.61 log cfu/ml vs. 4.28 log cfu/g), while we found no significant difference between both sampling methods for E. coli. For Campylobacter spp. the neck skin samples showed significantly higher mean values than the whole carcass rinse samples (2.04 log cfu/g vs. 1.31 log cfu/ml).

摘要

我们研究了从24只冷藏后的肉鸡胴体上采集的颈部皮肤样本,对于整个皮肤的微生物负荷(总活菌数 - TVC为3.99 log cfu/g,大肠杆菌为2.06 log cfu/g,弯曲杆菌属为2.04 log cfu/g)是否具有代表性。对于任何目标病菌,颈部皮肤的污染与分析的其他皮肤区域(背部、胸部、腹部和腿部皮肤)之间均未发现显著差异。我们还比较了两种采样方法(颈部皮肤切除和整只胴体冲洗)的结果,以检查两种方法是否产生可比的结果。整只胴体冲洗样本中的TVC均值显著更高(4.61 log cfu/ml对4.28 log cfu/g),而对于大肠杆菌,我们发现两种采样方法之间没有显著差异。对于弯曲杆菌属,颈部皮肤样本的均值显著高于整只胴体冲洗样本(2.04 log cfu/g对1.31 log cfu/ml)。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7783/12275183/7d1e47b1342c/gr1.jpg

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