Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America

Studies of the migratory dynamics of cyathostomin infective larvae (L3) in different seasons and with two types of irrigation were carried out over 12 months (September 2006 to September 2007) in the subtropical climate of the Baixada Fluminense region of Rio de Janeiro state, Brazil. Four faecal ma...

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Main Authors: M.C.M. Couto, S. Quinelato, F.C. Cordeiro, I.B.M. Sampaio, M.L.A. Rodrigues
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2011-04-01
Series:Veterinární Medicína
Subjects:
Online Access:https://vetmed.agriculturejournals.cz/artkey/vet-201104-0003_migratory-dynamics-of-cyathostomin-larvae-in-a-bermuda-grass-pasture-in-south-america.php
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author M.C.M. Couto
S. Quinelato
F.C. Cordeiro
I.B.M. Sampaio
M.L.A. Rodrigues
author_facet M.C.M. Couto
S. Quinelato
F.C. Cordeiro
I.B.M. Sampaio
M.L.A. Rodrigues
author_sort M.C.M. Couto
collection DOAJ
description Studies of the migratory dynamics of cyathostomin infective larvae (L3) in different seasons and with two types of irrigation were carried out over 12 months (September 2006 to September 2007) in the subtropical climate of the Baixada Fluminense region of Rio de Janeiro state, Brazil. Four faecal masses weighing 500 g each from naturally infected horses were placed in a Bermuda grass (Cynodon dactylon) pasture in the beginning of each season. Samples of faeces and grass were collected every 15 days until the end of each season. The highest recovery in faeces occured in Autumn (491 910 L3/kg dried herbage) and in pasture was achieved in Winter (9 963 L3/kg dried herbage). The lowest number of infective larvae recovered from faeces (55 100 L3/kg dried herbage) and pastures (2 188 L3/kg dried herbage) were achieved in Spring. The nonparametric Kruskal-Wallis test showed a significant difference in infective larvae recovery between the seasons. The collection time of the samples did not affect the larva recovery. The results suggest that in the conditions of the region studied, animals maintained in pasture are at permanent risk of infection.
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spelling doaj.art-f3ae4e57aada423d9f4664e9687c9bc82023-02-23T03:49:55ZengCzech Academy of Agricultural SciencesVeterinární Medicína0375-84271805-93922011-04-0156416817210.17221/3146-VETMEDvet-201104-0003Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South AmericaM.C.M. Couto0S. Quinelato1F.C. Cordeiro2I.B.M. Sampaio3M.L.A. Rodrigues4Rural Federal University of Rio de Janeiro, Rio de Janeiro, BrazilRural Federal University of Rio de Janeiro, Rio de Janeiro, BrazilRural Federal University of Rio de Janeiro, Rio de Janeiro, BrazilFederal University of Minas Gerais, Minas Gerais, BrazilRural Federal University of Rio de Janeiro, Rio de Janeiro, BrazilStudies of the migratory dynamics of cyathostomin infective larvae (L3) in different seasons and with two types of irrigation were carried out over 12 months (September 2006 to September 2007) in the subtropical climate of the Baixada Fluminense region of Rio de Janeiro state, Brazil. Four faecal masses weighing 500 g each from naturally infected horses were placed in a Bermuda grass (Cynodon dactylon) pasture in the beginning of each season. Samples of faeces and grass were collected every 15 days until the end of each season. The highest recovery in faeces occured in Autumn (491 910 L3/kg dried herbage) and in pasture was achieved in Winter (9 963 L3/kg dried herbage). The lowest number of infective larvae recovered from faeces (55 100 L3/kg dried herbage) and pastures (2 188 L3/kg dried herbage) were achieved in Spring. The nonparametric Kruskal-Wallis test showed a significant difference in infective larvae recovery between the seasons. The collection time of the samples did not affect the larva recovery. The results suggest that in the conditions of the region studied, animals maintained in pasture are at permanent risk of infection.https://vetmed.agriculturejournals.cz/artkey/vet-201104-0003_migratory-dynamics-of-cyathostomin-larvae-in-a-bermuda-grass-pasture-in-south-america.phpkeywords: cyathostominaeinfective larvaeirrigationseasons
spellingShingle M.C.M. Couto
S. Quinelato
F.C. Cordeiro
I.B.M. Sampaio
M.L.A. Rodrigues
Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America
Veterinární Medicína
keywords: cyathostominae
infective larvae
irrigation
seasons
title Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America
title_full Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America
title_fullStr Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America
title_full_unstemmed Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America
title_short Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America
title_sort migratory dynamics of cyathostomin larvae in a bermuda grass pasture in south america
topic keywords: cyathostominae
infective larvae
irrigation
seasons
url https://vetmed.agriculturejournals.cz/artkey/vet-201104-0003_migratory-dynamics-of-cyathostomin-larvae-in-a-bermuda-grass-pasture-in-south-america.php
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