Perez-Arnedo Iratxe, Gonzalez-Fandos Elena
Food Technology Department, CIVA Research Center, University of La Rioja, 26006 La Rioja, Spain.
Foods. 2019 Mar 26;8(3):111. doi: 10.3390/foods8030111.
The present study was conducted to investigate the prevalence of spp. in a selection of poultry flocks and the corresponding broiler carcasses as well as the possible impact of contamination during slaughter and processing. Samples of the same flock at different ages in three farms (A, B and C) were taken for the determination of spp. The same broiler flocks were examined at different stages of one slaughterhouse and at a further processing plant. The slaughterhouse environment and processing equipment were sampled. spp. was not detected in 7 and 14-day-old broilers in any of the three farms studied. However, spp. was detected in 35 and 42-day-old broilers at two farms (Farm A and B). This pathogen was detected in both dirty and clean transport crates, in scalding water, and on the defeathering machine and the working table at the end of the working day, but not at the beginning. After defeathering, spp. was detected in all of the sampled carcasses. spp. was detected in all of the carcasses and the poultry meat portion samples from Farm C, although it was not detected at the farm level. This suggests that spp. infected flocks may be a source of these bacteria in the corresponding carcasses, but a cross-contamination during the transportation and slaughter process is also very important.
本研究旨在调查特定家禽群及其相应肉鸡胴体中某菌属的流行情况，以及屠宰和加工过程中污染的可能影响。采集了三个农场（A、B和C）不同年龄同一鸡群的样本，用于测定某菌属。对同一肉鸡群在一家屠宰场的不同阶段以及另一家加工厂进行了检查。对屠宰场环境和加工设备进行了采样。在所研究的三个农场中，7日龄和14日龄的肉鸡均未检测到某菌属。然而，在两个农场（农场A和B）的35日龄和42日龄肉鸡中检测到了某菌属。在工作日结束时，在脏的和干净的运输箱、烫毛水中、脱毛机和工作台上检测到了这种病原体，但在开始时未检测到。脱毛后，在所有采样的胴体中都检测到了某菌属。在农场C的所有胴体和禽肉部分样本中都检测到了某菌属，尽管在农场层面未检测到。这表明感染某菌属的鸡群可能是相应胴体中这些细菌的来源，但运输和屠宰过程中的交叉污染也非常重要。
