Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.vetpar.2015.12.017 http://hdl.handle.net/11449/172733 |
Resumo: | The present study evaluated the viability and possible effects of Haemonchus contortus infections in experimentally prime infected calves, comparing them to infections by Haemonchus placei. Ten male Holstein newborns were used. All calves were individually weighed for subsequent group formation, in which two animals were kept as a control group, inoculated with water (GI); four animals were inoculated with 10,000 third stage (L3) Haemonchus contortus larvae (GII); and the remaining four calves were inoculated with 10,000 third stage (L3) H. placei larvae (GIII). All experimental animals were necropsied on the 42nd day after inoculation. Based on results obtained by the present study, it can be concluded that bovine calves were susceptible to infections by both Haemonchus species (placei and contortus). H. contortus presented an inferior pre-patent period when compared to H. placei. No significant difference (P > 0.05) was observed between Haemonchus burdens recovered from both infected groups (GII and GIII). Moreover, H. contortus females maintained an egg production rate similar to H. placei females in young animals, which can contribute to pasture contamination by both Haemonchus species. This could possibly lead to negative reflexes on helminth control based on a mixed pasture with bovines and ovines, especially when it involves younglings. |
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Repositório Institucional da UNESP |
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spelling |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parametersArtificial infectionBovinesHaemonchus contortusThe present study evaluated the viability and possible effects of Haemonchus contortus infections in experimentally prime infected calves, comparing them to infections by Haemonchus placei. Ten male Holstein newborns were used. All calves were individually weighed for subsequent group formation, in which two animals were kept as a control group, inoculated with water (GI); four animals were inoculated with 10,000 third stage (L3) Haemonchus contortus larvae (GII); and the remaining four calves were inoculated with 10,000 third stage (L3) H. placei larvae (GIII). All experimental animals were necropsied on the 42nd day after inoculation. Based on results obtained by the present study, it can be concluded that bovine calves were susceptible to infections by both Haemonchus species (placei and contortus). H. contortus presented an inferior pre-patent period when compared to H. placei. No significant difference (P > 0.05) was observed between Haemonchus burdens recovered from both infected groups (GII and GIII). Moreover, H. contortus females maintained an egg production rate similar to H. placei females in young animals, which can contribute to pasture contamination by both Haemonchus species. This could possibly lead to negative reflexes on helminth control based on a mixed pasture with bovines and ovines, especially when it involves younglings.Faculdade de Ciências Agrárias e Veterinárias UNESP/CPPAR, Via de acesso prof. Paulo Donatto Castellani, s/nInstituto de Patologia Tropical e Saúde Pública Universidade Federal de GoiásFaculdade de Ciências Agrárias e Veterinárias UNESP/CPPAR, Via de acesso prof. Paulo Donatto Castellani, s/nUniversidade Estadual Paulista (Unesp)Universidade Federal de Goiás (UFG)Fávero, Flávia Carolina [UNESP]Buzzulini, Carolina [UNESP]Cruz, Breno Cayeiro [UNESP]Felippelli, Gustavo [UNESP]Maciel, Willian Giquelin [UNESP]Salatta, Bruna [UNESP]Teixeira, Weslen Fabricio Pires [UNESP]Soares, Vando Edésio [UNESP]de Oliveira, Gilson Pereira [UNESP]Lopes, Welber Daniel Zanetti [UNESP]da Costa, Alvimar José [UNESP]2018-12-11T17:01:57Z2018-12-11T17:01:57Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article25-28application/pdfhttp://dx.doi.org/10.1016/j.vetpar.2015.12.017Veterinary Parasitology, v. 217, p. 25-28.1873-25500304-4017http://hdl.handle.net/11449/17273310.1016/j.vetpar.2015.12.0172-s2.0-849616954792-s2.0-84961695479.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengVeterinary Parasitology1,275info:eu-repo/semantics/openAccess2024-04-12T13:07:00Zoai:repositorio.unesp.br:11449/172733Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:46:19.578853Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters |
title |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters |
spellingShingle |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters Fávero, Flávia Carolina [UNESP] Artificial infection Bovines Haemonchus contortus |
title_short |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters |
title_full |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters |
title_fullStr |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters |
title_full_unstemmed |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters |
title_sort |
Experimental infection of calves with Haemonchus placei and Haemonchus contortus: Assessment of parasitological parameters |
author |
Fávero, Flávia Carolina [UNESP] |
author_facet |
Fávero, Flávia Carolina [UNESP] Buzzulini, Carolina [UNESP] Cruz, Breno Cayeiro [UNESP] Felippelli, Gustavo [UNESP] Maciel, Willian Giquelin [UNESP] Salatta, Bruna [UNESP] Teixeira, Weslen Fabricio Pires [UNESP] Soares, Vando Edésio [UNESP] de Oliveira, Gilson Pereira [UNESP] Lopes, Welber Daniel Zanetti [UNESP] da Costa, Alvimar José [UNESP] |
author_role |
author |
author2 |
Buzzulini, Carolina [UNESP] Cruz, Breno Cayeiro [UNESP] Felippelli, Gustavo [UNESP] Maciel, Willian Giquelin [UNESP] Salatta, Bruna [UNESP] Teixeira, Weslen Fabricio Pires [UNESP] Soares, Vando Edésio [UNESP] de Oliveira, Gilson Pereira [UNESP] Lopes, Welber Daniel Zanetti [UNESP] da Costa, Alvimar José [UNESP] |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Goiás (UFG) |
dc.contributor.author.fl_str_mv |
Fávero, Flávia Carolina [UNESP] Buzzulini, Carolina [UNESP] Cruz, Breno Cayeiro [UNESP] Felippelli, Gustavo [UNESP] Maciel, Willian Giquelin [UNESP] Salatta, Bruna [UNESP] Teixeira, Weslen Fabricio Pires [UNESP] Soares, Vando Edésio [UNESP] de Oliveira, Gilson Pereira [UNESP] Lopes, Welber Daniel Zanetti [UNESP] da Costa, Alvimar José [UNESP] |
dc.subject.por.fl_str_mv |
Artificial infection Bovines Haemonchus contortus |
topic |
Artificial infection Bovines Haemonchus contortus |
description |
The present study evaluated the viability and possible effects of Haemonchus contortus infections in experimentally prime infected calves, comparing them to infections by Haemonchus placei. Ten male Holstein newborns were used. All calves were individually weighed for subsequent group formation, in which two animals were kept as a control group, inoculated with water (GI); four animals were inoculated with 10,000 third stage (L3) Haemonchus contortus larvae (GII); and the remaining four calves were inoculated with 10,000 third stage (L3) H. placei larvae (GIII). All experimental animals were necropsied on the 42nd day after inoculation. Based on results obtained by the present study, it can be concluded that bovine calves were susceptible to infections by both Haemonchus species (placei and contortus). H. contortus presented an inferior pre-patent period when compared to H. placei. No significant difference (P > 0.05) was observed between Haemonchus burdens recovered from both infected groups (GII and GIII). Moreover, H. contortus females maintained an egg production rate similar to H. placei females in young animals, which can contribute to pasture contamination by both Haemonchus species. This could possibly lead to negative reflexes on helminth control based on a mixed pasture with bovines and ovines, especially when it involves younglings. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01 2018-12-11T17:01:57Z 2018-12-11T17:01:57Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.vetpar.2015.12.017 Veterinary Parasitology, v. 217, p. 25-28. 1873-2550 0304-4017 http://hdl.handle.net/11449/172733 10.1016/j.vetpar.2015.12.017 2-s2.0-84961695479 2-s2.0-84961695479.pdf |
url |
http://dx.doi.org/10.1016/j.vetpar.2015.12.017 http://hdl.handle.net/11449/172733 |
identifier_str_mv |
Veterinary Parasitology, v. 217, p. 25-28. 1873-2550 0304-4017 10.1016/j.vetpar.2015.12.017 2-s2.0-84961695479 2-s2.0-84961695479.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Veterinary Parasitology 1,275 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
25-28 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129116590833664 |