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Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil

In tropical regions, family farming is a form of production and work that is highly present in rural areas. Because the production system for free-range chickens has a low level of technification, it frequently presents massive infection by coccidia. The objective of this study was to determine the...

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Autores principales: da Silva, Juliana Trajano, Alvares, Felipe Boniedj Ventura, de Lima, Estefany Ferreira, da Silva Filho, Geraldo Moreira, da Silva, Ana Luzia Peixoto, Lima, Brendo Andrade, Feitosa, Thais Ferreira, Vilela, Vinícius Longo Ribeiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9606332/
https://www.ncbi.nlm.nih.gov/pubmed/36311673
http://dx.doi.org/10.3389/fvets.2022.1031330
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author da Silva, Juliana Trajano
Alvares, Felipe Boniedj Ventura
de Lima, Estefany Ferreira
da Silva Filho, Geraldo Moreira
da Silva, Ana Luzia Peixoto
Lima, Brendo Andrade
Feitosa, Thais Ferreira
Vilela, Vinícius Longo Ribeiro
author_facet da Silva, Juliana Trajano
Alvares, Felipe Boniedj Ventura
de Lima, Estefany Ferreira
da Silva Filho, Geraldo Moreira
da Silva, Ana Luzia Peixoto
Lima, Brendo Andrade
Feitosa, Thais Ferreira
Vilela, Vinícius Longo Ribeiro
author_sort da Silva, Juliana Trajano
collection PubMed
description In tropical regions, family farming is a form of production and work that is highly present in rural areas. Because the production system for free-range chickens has a low level of technification, it frequently presents massive infection by coccidia. The objective of this study was to determine the prevalence and diversity of Eimeria species in free-range chickens in northeastern Brazil. Fecal analyses were carried out using materials collected from 100 farms, belonging to 10 different municipalities. The sample from each farm was composed of five stool samples collected from different animals. Coproparasitological analyses were performed and, in each positive sample, photomicrographs of 20 oocysts were used for morphological identification of coccidia. The presence of Eimeria spp. was detected in 59% (59/100) of the farms analyzed. Species identification was performed through morphometric analysis of 1,180 sporulated oocysts. The following eight species of Eimeria spp. were found, in decreasing order of prevalence: Eimeria necatrix (25%), Eimeria mitis (18.3%), Eimeria mivati (17.3%), Eimeria tenella (12.4%), Eimeria brunetti (9.9%), Eimeria acervulina (9.1%), Eimeria praecox (4.8%) and Eimeria maxima (3.2%). The prevalence and diversity of Eimeria spp. on farms producing backyard chickens in the semiarid region of Brazil were high, especially the diversity of species. Changing the management, with the adoption of sanitary measures, may be effective in reducing the high prevalence of coccidia on the farms studied.
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spelling pubmed-96063322022-10-28 Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil da Silva, Juliana Trajano Alvares, Felipe Boniedj Ventura de Lima, Estefany Ferreira da Silva Filho, Geraldo Moreira da Silva, Ana Luzia Peixoto Lima, Brendo Andrade Feitosa, Thais Ferreira Vilela, Vinícius Longo Ribeiro Front Vet Sci Veterinary Science In tropical regions, family farming is a form of production and work that is highly present in rural areas. Because the production system for free-range chickens has a low level of technification, it frequently presents massive infection by coccidia. The objective of this study was to determine the prevalence and diversity of Eimeria species in free-range chickens in northeastern Brazil. Fecal analyses were carried out using materials collected from 100 farms, belonging to 10 different municipalities. The sample from each farm was composed of five stool samples collected from different animals. Coproparasitological analyses were performed and, in each positive sample, photomicrographs of 20 oocysts were used for morphological identification of coccidia. The presence of Eimeria spp. was detected in 59% (59/100) of the farms analyzed. Species identification was performed through morphometric analysis of 1,180 sporulated oocysts. The following eight species of Eimeria spp. were found, in decreasing order of prevalence: Eimeria necatrix (25%), Eimeria mitis (18.3%), Eimeria mivati (17.3%), Eimeria tenella (12.4%), Eimeria brunetti (9.9%), Eimeria acervulina (9.1%), Eimeria praecox (4.8%) and Eimeria maxima (3.2%). The prevalence and diversity of Eimeria spp. on farms producing backyard chickens in the semiarid region of Brazil were high, especially the diversity of species. Changing the management, with the adoption of sanitary measures, may be effective in reducing the high prevalence of coccidia on the farms studied. Frontiers Media S.A. 2022-10-13 /pmc/articles/PMC9606332/ /pubmed/36311673 http://dx.doi.org/10.3389/fvets.2022.1031330 Text en Copyright © 2022 Silva, Alvares, Lima, Silva Filho, Silva, Lima, Feitosa and Vilela. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Veterinary Science
da Silva, Juliana Trajano
Alvares, Felipe Boniedj Ventura
de Lima, Estefany Ferreira
da Silva Filho, Geraldo Moreira
da Silva, Ana Luzia Peixoto
Lima, Brendo Andrade
Feitosa, Thais Ferreira
Vilela, Vinícius Longo Ribeiro
Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil
title Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil
title_full Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil
title_fullStr Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil
title_full_unstemmed Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil
title_short Prevalence and diversity of Eimeria spp. in free-range chickens in northeastern Brazil
title_sort prevalence and diversity of eimeria spp. in free-range chickens in northeastern brazil
topic Veterinary Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9606332/
https://www.ncbi.nlm.nih.gov/pubmed/36311673
http://dx.doi.org/10.3389/fvets.2022.1031330
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