Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)

Abstract Twenty-six newborn lambs were evaluated for 21 weeks, from birth to slaughter, to assess their plasma anti-Oestrus ovis immunoglobulin (IgG) using the ELISA technique. On the last day of sampling, all the lambs were slaughtered and O. ovis larvae were recovered, quantified and identified a...

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Main Authors: Bruna Fernanda da Silva, César Cristiano Bassetto, Alessandro Francisco Talamini do Amarante
Format: Article
Language:English
Published: Colégio Brasileiro de Parasitologia Veterinaria 2018-08-01
Series:Revista Brasileira de Parasitologia Veterinária
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612018000300295&lng=en&tlng=en
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author Bruna Fernanda da Silva
César Cristiano Bassetto
Alessandro Francisco Talamini do Amarante
author_facet Bruna Fernanda da Silva
César Cristiano Bassetto
Alessandro Francisco Talamini do Amarante
author_sort Bruna Fernanda da Silva
collection DOAJ
description Abstract Twenty-six newborn lambs were evaluated for 21 weeks, from birth to slaughter, to assess their plasma anti-Oestrus ovis immunoglobulin (IgG) using the ELISA technique. On the last day of sampling, all the lambs were slaughtered and O. ovis larvae were recovered, quantified and identified according to the larval stage. High levels of IgG were observed over the first three weeks of life, thus indicating that antibodies are transferred via colostrum from ewes to lambs. Afterwards, the antibody levels declined progressively until the lambs were 11 weeks of age and subsequently started to increase again when they were around 13 weeks of age, reaching the apex on the last week of sampling. All the lambs were parasitized with different larval stages of O. ovis, with an average of 39 larvae per lamb, and the intensity of the infestation ranged from 10 to 97 larvae. However, there was non-significant correlation coefficients between IgG levels and O. ovis larval burden (P > 0.05). In conclusion, although the lambs became infested with O. ovis at an early age, the larval burden was not associated with specific IgG levels.
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spelling doaj.art-f686bed98697447a9227a175cfa2b48a2022-12-21T18:21:13ZengColégio Brasileiro de Parasitologia VeterinariaRevista Brasileira de Parasitologia Veterinária1984-29612018-08-0127329530010.1590/s1984-296120180045S1984-29612018000300295Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)Bruna Fernanda da SilvaCésar Cristiano BassettoAlessandro Francisco Talamini do AmaranteAbstract Twenty-six newborn lambs were evaluated for 21 weeks, from birth to slaughter, to assess their plasma anti-Oestrus ovis immunoglobulin (IgG) using the ELISA technique. On the last day of sampling, all the lambs were slaughtered and O. ovis larvae were recovered, quantified and identified according to the larval stage. High levels of IgG were observed over the first three weeks of life, thus indicating that antibodies are transferred via colostrum from ewes to lambs. Afterwards, the antibody levels declined progressively until the lambs were 11 weeks of age and subsequently started to increase again when they were around 13 weeks of age, reaching the apex on the last week of sampling. All the lambs were parasitized with different larval stages of O. ovis, with an average of 39 larvae per lamb, and the intensity of the infestation ranged from 10 to 97 larvae. However, there was non-significant correlation coefficients between IgG levels and O. ovis larval burden (P > 0.05). In conclusion, although the lambs became infested with O. ovis at an early age, the larval burden was not associated with specific IgG levels.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612018000300295&lng=en&tlng=enMyiasissheepimmunoglobulin Gimmune responsedyspnea
spellingShingle Bruna Fernanda da Silva
César Cristiano Bassetto
Alessandro Francisco Talamini do Amarante
Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)
Revista Brasileira de Parasitologia Veterinária
Myiasis
sheep
immunoglobulin G
immune response
dyspnea
title Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)
title_full Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)
title_fullStr Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)
title_full_unstemmed Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)
title_short Immune humoral response of young lambs naturally infested by Oestrus ovis (Diptera: Oestridae)
title_sort immune humoral response of young lambs naturally infested by oestrus ovis diptera oestridae
topic Myiasis
sheep
immunoglobulin G
immune response
dyspnea
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612018000300295&lng=en&tlng=en
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