A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen Breeds

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 t...

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Main Authors: Carla Miranda, Sónia Batista, Teresa Letra Mateus, Madalena Vieira-Pinto, Virgínia Ribeiro, Rui Dantas, Nuno V. Brito
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/13/21/3389
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author Carla Miranda
Sónia Batista
Teresa Letra Mateus
Madalena Vieira-Pinto
Virgínia Ribeiro
Rui Dantas
Nuno V. Brito
author_facet Carla Miranda
Sónia Batista
Teresa Letra Mateus
Madalena Vieira-Pinto
Virgínia Ribeiro
Rui Dantas
Nuno V. Brito
author_sort Carla Miranda
collection DOAJ
description 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 <i>Salmonella</i> 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 <i>Salmonella</i> spp. To the best of our knowledge, these are the first results of <i>Salmonella</i> 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.
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spelling doaj.art-ca24e9702f5d41a091078661df7721582023-11-10T14:57:57ZengMDPI AGAnimals2076-26152023-11-011321338910.3390/ani13213389A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen BreedsCarla Miranda0Sónia Batista1Teresa Letra Mateus2Madalena Vieira-Pinto3Virgínia Ribeiro4Rui Dantas5Nuno V. Brito61H-TOXRUN–One Health Toxicology Research Unit, University Institute of Health Sciences, Cooperativa de Ensino Superior Politécnico e Universitário, 4585-116 Gandra, PortugalCISAS–Center for Research and Development in Agrifood Systems and Sustainability, Polytechnic Institute of Viana do Castelo, NUTRIR (Technological Center for AgriFood Sustainability), Monte de Prado, 4960-320 Melgaço, PortugalCISAS–Center for Research and Development in Agrifood Systems and Sustainability, Polytechnic Institute of Viana do Castelo, NUTRIR (Technological Center for AgriFood Sustainability), Monte de Prado, 4960-320 Melgaço, PortugalCISAS–Center for Research and Development in Agrifood Systems and Sustainability, Polytechnic Institute of Viana do Castelo, NUTRIR (Technological Center for AgriFood Sustainability), Monte de Prado, 4960-320 Melgaço, PortugalAMIBA–Associação dos Criadores de Bovinos de Raça Barrosã, 4730-260 Vila Verde, PortugalAMIBA–Associação dos Criadores de Bovinos de Raça Barrosã, 4730-260 Vila Verde, Portugal1H-TOXRUN–One Health Toxicology Research Unit, University Institute of Health Sciences, Cooperativa de Ensino Superior Politécnico e Universitário, 4585-116 Gandra, PortugalThe 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 <i>Salmonella</i> 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 <i>Salmonella</i> spp. To the best of our knowledge, these are the first results of <i>Salmonella</i> 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.https://www.mdpi.com/2076-2615/13/21/3389salmonellosisOne Healthchickenlaying henssmall scaleautochthonous breeds
spellingShingle Carla Miranda
Sónia Batista
Teresa Letra Mateus
Madalena Vieira-Pinto
Virgínia Ribeiro
Rui Dantas
Nuno V. Brito
A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen Breeds
Animals
salmonellosis
One Health
chicken
laying hens
small scale
autochthonous breeds
title A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen Breeds
title_full A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen Breeds
title_fullStr A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen Breeds
title_full_unstemmed A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen Breeds
title_short A Preliminary Investigation of <i>Salmonella</i> Populations in Indigenous Portuguese Layer Hen Breeds
title_sort preliminary investigation of i salmonella i populations in indigenous portuguese layer hen breeds
topic salmonellosis
One Health
chicken
laying hens
small scale
autochthonous breeds
url https://www.mdpi.com/2076-2615/13/21/3389
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