The objective of this study was to evaluate the extent of Salmonella contamination in retail chicken carcasses within Alexandria, Egypt, while also identifying the specific serotypes present. The research addresses the scarcity of comprehensive data concerning Salmonella distribution and its phenotypic attributes in chicken meat across the Alexandria Governorate. A total of sixty raw chicken carcass samples were randomly acquired from six different markets in Alexandria. Detection of Salmonella spp. was conducted based on standard culture techniques, biochemical analyses, and serological tests. The results revealed an overall occurrence of 33.3% in Salmonella contamination. The most prevalent serotypes were S. typhimurium and S. kentucky. Among the sampled chicken carcass components, the liver and gizzard exhibited the highest contamination rates at 60% each, followed by the neck at 50%, and the wing at 30%. Conversely, no traces of Salmonella were detected in the heart and small intestine samples. This absence could be attributed to the administration of antibiotics in poultry feeds at the farm level. Analysis of various markets highlighted differing contamination rates; Asafra, Alabrahimih, and Mansheya registered the highest rates at 60%, 40%, and 40% respectively. In contrast, Borg El Arab and Amriya experienced lower rates with both displaying a 30% contamination level. Intriguingly, a supermarket within Alexandria showed no presence of Salmonella spp. The study underscores substantial carcass contamination during the market handling phase, emphasizing the need for intervention strategies from relevant stakeholders to mitigate these contamination impacts.

本研究的目的是评估埃及亚历山大市零售鸡尸体中沙门氏菌污染的程度，同时确定存在的特定血清型。该研究解决了亚历山大省鸡肉中沙门氏菌分布及其表型属性的综合数据的缺乏问题。从亚历山大的六个不同市场随机采集了总共六十个生鸡尸体样本。沙门氏菌的检测 是根据标准培养技术、生化分析和血清学测试进行的。结果显示，沙门氏菌污染的总体发生率为 33.3%。最流行的血清型是鼠伤寒沙门氏菌和肯塔基沙门氏菌。在抽取的鸡胴体成分中，肝脏和砂囊的污染率最高，各为 60%，其次是颈部，为 50%，最后是鸡翅，为 30%。相反，在心脏和小肠样本中没有检测到沙门氏菌的痕迹。这种缺失可能是由于农场在家禽饲料中使用抗生素所致。对不同市场的分析凸显了不同的污染率；阿萨夫拉 (Asafra)、阿拉布拉希米 (Alabrahimih) 和曼谢亚 (Mansheya) 的比例最高，分别为 60%、40% 和 40%。相比之下，Borg El Arab 和 Amriya 的污染率较低，两者的污染水平均为 30%。有趣的是，亚历山大的一家超市没有发现沙门氏菌。该研究强调了市场处理阶段存在大量胴体污染，并强调相关利益相关者需要采取干预策略来减轻这些污染影响。