A Preliminary Investigation of Salmonella Populations in Indigenous Portuguese Layer Hen Breeds

Miranda, Carla; Batista, S.; Mateus, Teresa Letra; Vieira-Pinto, Madalena; Ribeiro, Virgínia; Dantas, Rui; Brito, Nuno V.

http://hdl.handle.net/10362/178990

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Autores

Miranda, Carla

Batista, S.

Mateus, Teresa Letra

Vieira-Pinto, Madalena

Ribeiro, Virgínia

Dantas, Rui

Brito, Nuno V.

Resumo(s)

The sustainability of agroecological systems, biodiversity protection, animal welfare, and consumer demand for higher quality products from alternative and extensive farming methods have reinforced interest in local breeds that are well adapted to low-input environments. However, food safety needs to be safeguarded to reinforce consumer confidence. The aim of this study was to conduct a preliminary investigation on the occurrence of Salmonella spp. in eggshells, hen’s cloaca, and litter materials from autochthonous Portuguese laying hens raised in a semi-extensive system for small-scale production. A total of 279 samples from 31 flocks belonging to 12 farms were obtained, with 63 samples from the “Preta Lusitânica” breed, and 72 samples each from the remaining autochthonous breeds, namely, “Branca”, “Amarela”, and “Pedrês Portuguesa”. None (0%) of the samples analyzed were positive for Salmonella spp. To the best of our knowledge, these are the first results of Salmonella evaluation from hen’s cloaca, eggshells, and litter materials in autochthonous Portuguese chickens, suggesting that a semi-extensive production system can contribute to better food security and a lower risk to public health and the environment.

Descrição

Funding Information: This research was funded by CESPU-Cooperativa de Ensino Superior Politécnico e Universitário, under the SALMYTH_GI2-CESPU_2022 project, entitled “Small scale autochthonous chicken productions-the salmonella myth”. This work was financed by National Funds through FCT/MCTES–Portuguese Foundation for Science and Technology within the scope of the projects UIDB/50006/2020, UIDP/50006/2020, UIDB/05937/2020 and UIDP/05937/2020. The participation of M.V.P. was supported by the projects UIDB/CVT/00772/2020 and LA/P/0059/2020 funded by the Portuguese Foundation for Science and Technology (FCT). The participation of S.B. was supported by the project NORTE-06-3559-FSE-000204 (NUTRIR) funded by the NORTE 2020-FSE. Publisher Copyright: © 2023 by the authors.

Palavras-chave

Autochthonous breeds Chicken Laying hens One Health Salmonellosis Small scale Animal Science and Zoology General Veterinary SDG 2 - Zero Hunger SDG 3 - Good Health and Well-being