Monitoramento de Salmonella spp. em granjas comerciais de frango de corte np estado do Maranhão

Abstract

In recent years, the increase in global chicken meat production has brought sanitary challenges, such as the spread of microorganisms in intensive farming systems. In this context, monitoring Salmonella spp. is crucial to ensure product quality, protect consumer health, and strengthen Maranhão as a competitive poultry hub. This study aimed to monitor Salmonella spp. in commercial broiler farms in the state of Maranhão and to develop a sample collection manual to assist technical personnel in poultry establishments. The analyses were carried out following the methodology established by Ordinance No. 126, dated November 3, 1995, which sets standards for the diagnosis of avian salmonellosis. The sampled farms were located in nine municipalities within the state of Maranhão. During 2022 and 2023, 578 surface swab samples were analyzed using boot swabs: 393 samples in 2022, with 12 positives (3.1%), and 175 samples in 2023, with 9 positives (5.1%). The results confirm the presence of Salmonella spp. in the farms, although the priority serovars targeted by the National Poultry Health Program were not detected, indicating that biosecurity measures have been effective. However, the increase in the positivity rate in 2023 underscores the need to intensify surveillance strategies and sanitary control practices. The sample collection manual developed in this study, aligned with the guidelines of the National Poultry Health Program, provides clear instructions to ensure the accuracy and reliability of diagnoses. Training professionals in the sector, combined with systematic monitoring, is essential to mitigate the risks associated with salmonellosis and safeguard public health