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Analysis for selected pathogens in water used during rinsing of broiler carcasses in small processing operations in Trinidad

机译：特立尼达的小规模加工操作中冲洗肉鸡尸体时使用的水中所选病原体的分析

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The study was undertaken to quantitatively and/or qualitatively determine the level of selected bacterial pathogens in the water used during the rinsing stage at small retail broiler processing operations utilizing a stagnant rinsing system in Trinidad. Water samples (n = 6) were collected weekly from thirteen "pluck shops", across Trinidad, over a 6-week period. Standard media and procedures were used for isolation, detection and quantification of bacterial pathogens. A significant difference was noted for the prevalence (P = 0.004) and mean counts (P = 0.03) of Campylobacter spp. across counties. Total aerobic plate count ranged from log_(10) mean ± SD, 4.0 ± 1.3 in Caroni to 5.4 ± 1.0 in St. Andrew/St. David and was significantly different (P = 0.01). The differences in the prevalence of Campylobacter for tub-style plucking (83.3%) and drum plucking (58.3%) and mean counts for medium sale log_(10) mean ± SD (2.6 ± 0.8) and low sale shops (2.2 ± 0.9), as well as for tub-style plucking (2.5 ± 0.8) and drum plucking (1.8 ± 0.9) were statistically significant (P < 0.05). The prevalence of E. coli, the prevalence and mean count of staphylococci were significantly higher (P < 0.05) in operations where tub-style plucking was used compared with drum plucking. Since the quality of the in-process rinse water would affect the quality of the final product, it is recommended that the use of running water or a high frequency of changing the rinse water be implemented in these shops.
机译：这项研究旨在定量和/或定性地确定特立尼达的小型零售肉鸡加工厂在漂洗阶段在漂洗阶段使用的水中所选细菌病原体的水平。在六周的时间内，每周从特立尼达的13家“采摘商店”收集水样本（n = 6）。使用标准培养基和程序分离，检测和定量细菌病原体。弯曲杆菌属的患病率（P = 0.004）和平均值（P = 0.03）存在显着差异。跨县。有氧板总计数范围为log_（10）平均值±SD，卡罗尼的4.0±1.3至圣安德鲁/圣的5.4±1.0。戴维和明显不同（P = 0.01）。桶式拔除（83.3％）和桶式拔除（58.3％）的弯曲杆菌患病率的差异，中等销售额log_（10）的平均值计数平均值±SD（2.6±0.8）和低价商店的平均值（2.2±0.9） ，桶式拔除（2.5±0.8）和鼓式拔除（1.8±0.9）均具有统计学意义（P <0.05）。与使用桶式拔除相比，使用桶式拔除的操作中大肠杆菌的患病率，葡萄球菌的患病率和平均计数显着更高（P <0.05）。由于过程中冲洗水的质量会影响最终产品的质量，因此建议在这些商店中使用自来水或高频率更换冲洗水。

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