Hansson I, Nyman A, Lahti E, Gustafsson P, Olsson Engvall E
National Veterinary Institute, SE-751 89 Uppsala, Sweden.
National Veterinary Institute, SE-751 89 Uppsala, Sweden.
Food Microbiol. 2015 Jun;48:178-81. doi: 10.1016/j.fm.2014.12.013. Epub 2015 Jan 20.
A study was performed with the aim to investigate associations between Campylobacter in chicken caecum, carcass skin, underlying breast muscle and packaged breast fillets. Samples were taken from 285 chickens from 57 flocks and analysed according to ISO 10272. Campylobacter spp. were isolated from caecal samples from 41 flocks. From birds of the same 41 flocks Campylobacter could be detected and quantified in 194 (68%) skin samples. Moreover, Campylobacter spp. were enumerated in 13 (5%) underlying muscle samples originating from 9 of the 41 flocks. The mean number of Campylobacter spp. in the 194 skin samples which could be counted was 2.3 log cfu/g and for the 13 underlying muscle samples 1.3 log cfu/g. Campylobacter could only be quantified in those breast muscle samples with a finding in corresponding skin sample. Five packaged chicken fillets were taken from each 25 of the 57 flocks and analysed both quantitatively and qualitatively. In qualitative analysis Campylobacter was detected in 79 (63%) fillets from 16 flocks and quantified in 24 (19%) samples from 11 flocks. The results showed a significant association (P < 0.05) between findings of Campylobacter on carcass skin (log cfu/g) and the proportion of Campylobacter positive breast muscle samples.
开展了一项研究，旨在调查鸡盲肠、胴体皮肤、胸肌下层和包装鸡胸肉中弯曲杆菌之间的关联。从57个鸡群的285只鸡中采集样本，并按照ISO 10272进行分析。弯曲杆菌属从41个鸡群的盲肠样本中分离出来。在来自同一41个鸡群的鸡中，194份（68%）皮肤样本中检测到并定量了弯曲杆菌。此外，在来自41个鸡群中9个鸡群的13份（5%）胸肌下层样本中对弯曲杆菌属进行了计数。在可计数的194份皮肤样本中，弯曲杆菌属的平均数量为2.3 log cfu/g，在13份胸肌下层样本中为1.3 log cfu/g。只有在相应皮肤样本中检测到弯曲杆菌的胸肌样本才能进行定量。从57个鸡群中的25个鸡群的每群中选取5份包装鸡胸肉进行定量和定性分析。在定性分析中，在来自16个鸡群的79份（63%）鸡胸肉中检测到弯曲杆菌，在来自11个鸡群的24份（19%）样本中对其进行了定量。结果显示，胴体皮肤上弯曲杆菌的检测结果（log cfu/g）与弯曲杆菌阳性胸肌样本的比例之间存在显著关联（P < 0.05）。
