Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks

Detalhes bibliográficos
Autor(a) principal: González-Garduño,Roberto
Data de Publicação: 2013
Outros Autores: Mendoza-de Gives,Pedro, Torres-Hernández,Glafiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Veterinária Brasileira (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2013000400010
Resumo: This study aimed to evaluate the variability in the fecal egg count (FEC) and the parasitic burden of naive hair sheep after grazing in nematode infected paddocks. The research was carried out in Tabasco, Mexico, during two periods (August and December). In each period 32 lambs were grazed for one month on African star grass (Cynodon plectostachyus) contaminated with gastrointestinal parasitic nematodes. FEC, packed cell volume (PCV) and body weight (BW) were recorded. Gastrointestinal worms were recovered at necropsy. Data were analyzed with the MIXED procedure of SAS using a model of repeated measurements over time. A higher number of Haemonchus contortus worms was found in December (2814±838) than in August (1166±305). The opposite occurred with Cooperia curticei (2167±393 and 3638±441, respectively). The FEC and correlation coefficient in respect to the worm burden were higher in December (6516 ± 1599, r=0.83, respectively) than in August (4364±771, r=0.44, respectively). A high variability in resistance-susceptibility to gastrointestinal nematodes (GIN) occurred in Katahdin × Pelibuey lambs after grazing.
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spelling Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocksHaemonchus contortusCooperia curticeiOesophagostomum columbianumhair sheepresistance-susceptibilityThis study aimed to evaluate the variability in the fecal egg count (FEC) and the parasitic burden of naive hair sheep after grazing in nematode infected paddocks. The research was carried out in Tabasco, Mexico, during two periods (August and December). In each period 32 lambs were grazed for one month on African star grass (Cynodon plectostachyus) contaminated with gastrointestinal parasitic nematodes. FEC, packed cell volume (PCV) and body weight (BW) were recorded. Gastrointestinal worms were recovered at necropsy. Data were analyzed with the MIXED procedure of SAS using a model of repeated measurements over time. A higher number of Haemonchus contortus worms was found in December (2814±838) than in August (1166±305). The opposite occurred with Cooperia curticei (2167±393 and 3638±441, respectively). The FEC and correlation coefficient in respect to the worm burden were higher in December (6516 ± 1599, r=0.83, respectively) than in August (4364±771, r=0.44, respectively). A high variability in resistance-susceptibility to gastrointestinal nematodes (GIN) occurred in Katahdin × Pelibuey lambs after grazing.Colégio Brasileiro de Patologia Animal - CBPA2013-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2013000400010Pesquisa Veterinária Brasileira v.33 n.4 2013reponame:Pesquisa Veterinária Brasileira (Online)instname:Colégio Brasileiro de Patologia Animal (CBPA)instacron:EMBRAPA10.1590/S0100-736X2013000400010info:eu-repo/semantics/openAccessGonzález-Garduño,RobertoMendoza-de Gives,PedroTorres-Hernández,Glafiroeng2013-05-22T00:00:00Zoai:scielo:S0100-736X2013000400010Revistahttp://www.pvb.com.br/https://old.scielo.br/oai/scielo-oai.phpcolegio@cbpa.org.br||pvb@pvb.com.br0100-736X1678-5150opendoar:2013-05-22T00:00Pesquisa Veterinária Brasileira (Online) - Colégio Brasileiro de Patologia Animal (CBPA)false
dc.title.none.fl_str_mv Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
title Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
spellingShingle Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
González-Garduño,Roberto
Haemonchus contortus
Cooperia curticei
Oesophagostomum columbianum
hair sheep
resistance-susceptibility
title_short Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
title_full Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
title_fullStr Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
title_full_unstemmed Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
title_sort Variability in the fecal egg count and the parasitic burden of hair sheep after grazing in nematode infected paddocks
author González-Garduño,Roberto
author_facet González-Garduño,Roberto
Mendoza-de Gives,Pedro
Torres-Hernández,Glafiro
author_role author
author2 Mendoza-de Gives,Pedro
Torres-Hernández,Glafiro
author2_role author
author
dc.contributor.author.fl_str_mv González-Garduño,Roberto
Mendoza-de Gives,Pedro
Torres-Hernández,Glafiro
dc.subject.por.fl_str_mv Haemonchus contortus
Cooperia curticei
Oesophagostomum columbianum
hair sheep
resistance-susceptibility
topic Haemonchus contortus
Cooperia curticei
Oesophagostomum columbianum
hair sheep
resistance-susceptibility
description This study aimed to evaluate the variability in the fecal egg count (FEC) and the parasitic burden of naive hair sheep after grazing in nematode infected paddocks. The research was carried out in Tabasco, Mexico, during two periods (August and December). In each period 32 lambs were grazed for one month on African star grass (Cynodon plectostachyus) contaminated with gastrointestinal parasitic nematodes. FEC, packed cell volume (PCV) and body weight (BW) were recorded. Gastrointestinal worms were recovered at necropsy. Data were analyzed with the MIXED procedure of SAS using a model of repeated measurements over time. A higher number of Haemonchus contortus worms was found in December (2814±838) than in August (1166±305). The opposite occurred with Cooperia curticei (2167±393 and 3638±441, respectively). The FEC and correlation coefficient in respect to the worm burden were higher in December (6516 ± 1599, r=0.83, respectively) than in August (4364±771, r=0.44, respectively). A high variability in resistance-susceptibility to gastrointestinal nematodes (GIN) occurred in Katahdin × Pelibuey lambs after grazing.
publishDate 2013
dc.date.none.fl_str_mv 2013-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2013000400010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2013000400010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-736X2013000400010
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Colégio Brasileiro de Patologia Animal - CBPA
publisher.none.fl_str_mv Colégio Brasileiro de Patologia Animal - CBPA
dc.source.none.fl_str_mv Pesquisa Veterinária Brasileira v.33 n.4 2013
reponame:Pesquisa Veterinária Brasileira (Online)
instname:Colégio Brasileiro de Patologia Animal (CBPA)
instacron:EMBRAPA
instname_str Colégio Brasileiro de Patologia Animal (CBPA)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Veterinária Brasileira (Online)
collection Pesquisa Veterinária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Veterinária Brasileira (Online) - Colégio Brasileiro de Patologia Animal (CBPA)
repository.mail.fl_str_mv colegio@cbpa.org.br||pvb@pvb.com.br
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