Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1111/rda.13825 http://hdl.handle.net/11449/208908 |
Resumo: | This study assessed the cervical ultrasonography mapping as a tool to select donor ewes for non-surgical embryo recovery (NSER). Lacaune ewes had their cervix evaluated by ultrasonography 12 hr after induced oestrus onset (Trial 1, n = 24) or 30 min before NSER (Trial 2, n = 17). Cervical rings were longitudinally evaluated and classified by their degree of misalignment on ultrasonography (DMUS) into: DMUS-1-cervix rectilinear, DMUS-2-intermediate and DMUS-3-highly asymmetrical. For predicting cervical transposing, only DMUS-1 and DMUS-2 were considered suitable. Similar ranking was attributed to degree of misalignment on the cervical map (DMCM 1-3), established immediately before NSER, which was performed at days 6 to 7 after oestrus. In Trial 1, cervical retraction for NSER was not possible only in three ewes classified as DMUS-3 (3/14, 21.4%). No difference (p > .05) was observed in the cervical transposing rates between ewes with different DMUS (ranged from 80% to 100%). In Trial 2, DMUS-1 and DMUS-2 reached 100% of transposing, and the only DMUS-3 ewe has not been transposed. In Trial 1, the prediction performance for successful cervical transposing showed low sensitivity (45%) and no specificity due to a high incidence of false negatives (52%). However, in Trial 2, sensitivity and specificity were both 100%. The DMCM and DMUS were uncorrelated, probably due to cervical stretching required to perform NSER. In conclusion, cervical ultrasound assessment immediately before NSER was more efficient to predict the cervical transposing than at induced oestrus, allowing the classification and selection of ewes eligible for NSER. |
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Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recoverycervical transposingcervixsheepultrasoundThis study assessed the cervical ultrasonography mapping as a tool to select donor ewes for non-surgical embryo recovery (NSER). Lacaune ewes had their cervix evaluated by ultrasonography 12 hr after induced oestrus onset (Trial 1, n = 24) or 30 min before NSER (Trial 2, n = 17). Cervical rings were longitudinally evaluated and classified by their degree of misalignment on ultrasonography (DMUS) into: DMUS-1-cervix rectilinear, DMUS-2-intermediate and DMUS-3-highly asymmetrical. For predicting cervical transposing, only DMUS-1 and DMUS-2 were considered suitable. Similar ranking was attributed to degree of misalignment on the cervical map (DMCM 1-3), established immediately before NSER, which was performed at days 6 to 7 after oestrus. In Trial 1, cervical retraction for NSER was not possible only in three ewes classified as DMUS-3 (3/14, 21.4%). No difference (p > .05) was observed in the cervical transposing rates between ewes with different DMUS (ranged from 80% to 100%). In Trial 2, DMUS-1 and DMUS-2 reached 100% of transposing, and the only DMUS-3 ewe has not been transposed. In Trial 1, the prediction performance for successful cervical transposing showed low sensitivity (45%) and no specificity due to a high incidence of false negatives (52%). However, in Trial 2, sensitivity and specificity were both 100%. The DMCM and DMUS were uncorrelated, probably due to cervical stretching required to perform NSER. In conclusion, cervical ultrasound assessment immediately before NSER was more efficient to predict the cervical transposing than at induced oestrus, allowing the classification and selection of ewes eligible for NSER.Empresa Brasileira de Pesquisa AgropecuariaFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Fed Lavras, Lavras, BrazilUniv Fed Fluminense, Rua Vital Brazil Filho,64 Vital Brazil, Niteroi, RJ, BrazilUniv Estadual Paulista, Jaboticabal, BrazilEmbrapa Caprinos & Ovinos, Coronel Pacheco, BrazilUniv Estadual Paulista, Jaboticabal, BrazilEmpresa Brasileira de Pesquisa Agropecuaria: 22.13.06.026.00.03Empresa Brasileira de Pesquisa Agropecuaria: 22.13.06.026.00.04FAPEMIG: 00201-17CAPES: 001Wiley-BlackwellUniversidade Federal de Lavras (UFLA)Universidade Federal Fluminense (UFF)Universidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Figueira, Lucas MachadoAlves, Nadja GomesSouza-Fabjan, Joanna Maria GoncalvesVergani, Gabriel Brun [UNESP]Oliveira, Maria Emilia Franco [UNESP]Lima, Renato Ribeiro deFonseca, Jeferson Ferreira2021-06-25T11:24:27Z2021-06-25T11:24:27Z2020-10-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1638-1645http://dx.doi.org/10.1111/rda.13825Reproduction In Domestic Animals. Hoboken: Wiley, v. 55, n. 11, p. 1638-1645, 2020.0936-6768http://hdl.handle.net/11449/20890810.1111/rda.13825WOS:000582773400001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengReproduction In Domestic Animalsinfo:eu-repo/semantics/openAccess2021-10-23T19:23:20Zoai:repositorio.unesp.br:11449/208908Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:56:07.812895Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery |
title |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery |
spellingShingle |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery Figueira, Lucas Machado cervical transposing cervix sheep ultrasound |
title_short |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery |
title_full |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery |
title_fullStr |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery |
title_full_unstemmed |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery |
title_sort |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery |
author |
Figueira, Lucas Machado |
author_facet |
Figueira, Lucas Machado Alves, Nadja Gomes Souza-Fabjan, Joanna Maria Goncalves Vergani, Gabriel Brun [UNESP] Oliveira, Maria Emilia Franco [UNESP] Lima, Renato Ribeiro de Fonseca, Jeferson Ferreira |
author_role |
author |
author2 |
Alves, Nadja Gomes Souza-Fabjan, Joanna Maria Goncalves Vergani, Gabriel Brun [UNESP] Oliveira, Maria Emilia Franco [UNESP] Lima, Renato Ribeiro de Fonseca, Jeferson Ferreira |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Lavras (UFLA) Universidade Federal Fluminense (UFF) Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Figueira, Lucas Machado Alves, Nadja Gomes Souza-Fabjan, Joanna Maria Goncalves Vergani, Gabriel Brun [UNESP] Oliveira, Maria Emilia Franco [UNESP] Lima, Renato Ribeiro de Fonseca, Jeferson Ferreira |
dc.subject.por.fl_str_mv |
cervical transposing cervix sheep ultrasound |
topic |
cervical transposing cervix sheep ultrasound |
description |
This study assessed the cervical ultrasonography mapping as a tool to select donor ewes for non-surgical embryo recovery (NSER). Lacaune ewes had their cervix evaluated by ultrasonography 12 hr after induced oestrus onset (Trial 1, n = 24) or 30 min before NSER (Trial 2, n = 17). Cervical rings were longitudinally evaluated and classified by their degree of misalignment on ultrasonography (DMUS) into: DMUS-1-cervix rectilinear, DMUS-2-intermediate and DMUS-3-highly asymmetrical. For predicting cervical transposing, only DMUS-1 and DMUS-2 were considered suitable. Similar ranking was attributed to degree of misalignment on the cervical map (DMCM 1-3), established immediately before NSER, which was performed at days 6 to 7 after oestrus. In Trial 1, cervical retraction for NSER was not possible only in three ewes classified as DMUS-3 (3/14, 21.4%). No difference (p > .05) was observed in the cervical transposing rates between ewes with different DMUS (ranged from 80% to 100%). In Trial 2, DMUS-1 and DMUS-2 reached 100% of transposing, and the only DMUS-3 ewe has not been transposed. In Trial 1, the prediction performance for successful cervical transposing showed low sensitivity (45%) and no specificity due to a high incidence of false negatives (52%). However, in Trial 2, sensitivity and specificity were both 100%. The DMCM and DMUS were uncorrelated, probably due to cervical stretching required to perform NSER. In conclusion, cervical ultrasound assessment immediately before NSER was more efficient to predict the cervical transposing than at induced oestrus, allowing the classification and selection of ewes eligible for NSER. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-29 2021-06-25T11:24:27Z 2021-06-25T11:24:27Z |
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/10.1111/rda.13825 Reproduction In Domestic Animals. Hoboken: Wiley, v. 55, n. 11, p. 1638-1645, 2020. 0936-6768 http://hdl.handle.net/11449/208908 10.1111/rda.13825 WOS:000582773400001 |
url |
http://dx.doi.org/10.1111/rda.13825 http://hdl.handle.net/11449/208908 |
identifier_str_mv |
Reproduction In Domestic Animals. Hoboken: Wiley, v. 55, n. 11, p. 1638-1645, 2020. 0936-6768 10.1111/rda.13825 WOS:000582773400001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Reproduction In Domestic Animals |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1638-1645 |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808128439196057600 |