Relationship of antral follicular blood flow velocity to superovulatory responses in ewes
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.anireprosci.2017.04.009 http://hdl.handle.net/11449/162945 |
Resumo: | The aim of this study was to examine the association between antral follicular blood flow velocity and the response of ewes to hormonal ovarian superstimulation. Ten Santa Ines ewes were subjected to a short- (7 days; Group 1) or long-term (13 days; Group 2) progesterone (CIDR.; InterAg, Hamilton, New Zealand) priming, and a superovulatory treatment with porcine follicle stimulating hormone (pFSH; Folltropin (R)-V; Bioniche Animal Health, Belleville, ON, Canada), given twice daily for four consecutive days in decreasing doses and initiated four or ten days after CIDR insertion, respectively. Embryos were recovered surgically seven days after the last pFSH dose. From one day prior to until the end of the pFSH regimen (Days 1 to 3), all ewes underwent daily transrectal ultrasonography of ovaries. The number of high-velocity pixels (HVPs; 0.055-0.11 m/s or upper 50% of recordable velocities) on Day 1 correlated directly with the number of corpora lutea (CL; r = 0.92, P = 0.0002) and of viable embryos (r = 0.77, P = 0.01). Correlations were also recorded between the number of HVPs on Day 3 and the recovery rate (r = -0.69, P = 0.03), viability rate (r = -0.64, P = 0.05), and percentage of degenerated embryos (r = 0.65, P = 0.04). The percentage of HVPs relative to the total area of ovarian cross section on Day 1 was correlated with the number of CL (r = 0.95, P < 0.001) and of viable embryos (r = 0.85, P = 0.002). This parameter on Day 3 was also correlated with the recovery rate (r = -0.69, P = 0.03). The percentage of HVPs relative to the total Doppler area on Day 0 was correlated with the recovery rate (r = 0.72, P = 0.02). It can be concluded that sonographic assessment of high-velocity antral follicular blood flow has the makings of a useful non-invasive method to predict the outcome of the superovulatory treatment in ewes. |
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Relationship of antral follicular blood flow velocity to superovulatory responses in ewesSuperovulationSheepOvarian antral folliclesColor Doppler sonographyBlood flow velocityThe aim of this study was to examine the association between antral follicular blood flow velocity and the response of ewes to hormonal ovarian superstimulation. Ten Santa Ines ewes were subjected to a short- (7 days; Group 1) or long-term (13 days; Group 2) progesterone (CIDR.; InterAg, Hamilton, New Zealand) priming, and a superovulatory treatment with porcine follicle stimulating hormone (pFSH; Folltropin (R)-V; Bioniche Animal Health, Belleville, ON, Canada), given twice daily for four consecutive days in decreasing doses and initiated four or ten days after CIDR insertion, respectively. Embryos were recovered surgically seven days after the last pFSH dose. From one day prior to until the end of the pFSH regimen (Days 1 to 3), all ewes underwent daily transrectal ultrasonography of ovaries. The number of high-velocity pixels (HVPs; 0.055-0.11 m/s or upper 50% of recordable velocities) on Day 1 correlated directly with the number of corpora lutea (CL; r = 0.92, P = 0.0002) and of viable embryos (r = 0.77, P = 0.01). Correlations were also recorded between the number of HVPs on Day 3 and the recovery rate (r = -0.69, P = 0.03), viability rate (r = -0.64, P = 0.05), and percentage of degenerated embryos (r = 0.65, P = 0.04). The percentage of HVPs relative to the total area of ovarian cross section on Day 1 was correlated with the number of CL (r = 0.95, P < 0.001) and of viable embryos (r = 0.85, P = 0.002). This parameter on Day 3 was also correlated with the recovery rate (r = -0.69, P = 0.03). The percentage of HVPs relative to the total Doppler area on Day 0 was correlated with the recovery rate (r = 0.72, P = 0.02). It can be concluded that sonographic assessment of high-velocity antral follicular blood flow has the makings of a useful non-invasive method to predict the outcome of the superovulatory treatment in ewes.Natural Sciences and Engineering Research Council of CanadaDepartment of Biomedical Sciences, University of GuelphFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ, Dept Preventat Vet Med & Anim Reprod, Coll Agr & Vet Sci, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, BrazilUniv Guelph, Dept Biomed Sci, Ontario Vet Coll, Guelph, ON N1G 2W1, CanadaSao Paulo State Univ, Dept Clin & Vet Surg, Coll Agr & Vet Sci, BR-14884900 Jaboticabal, SP, BrazilSao Paulo State Univ, Fac Vet Med & Anim Sci, Dept Anim Reprod & Vet Radiol, BR-18618970 Botucatu, SP, BrazilBrazilian Agr Res Corp, Embrapa Goats & Sheep, BR-36155000 Coronel Pacheco, MG, BrazilSao Paulo State Univ, Dept Preventat Vet Med & Anim Reprod, Coll Agr & Vet Sci, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, BrazilSao Paulo State Univ, Dept Clin & Vet Surg, Coll Agr & Vet Sci, BR-14884900 Jaboticabal, SP, BrazilSao Paulo State Univ, Fac Vet Med & Anim Sci, Dept Anim Reprod & Vet Radiol, BR-18618970 Botucatu, SP, BrazilElsevier B.V.Universidade Estadual Paulista (Unesp)Univ GuelphEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Oliveira, M. E. F. [UNESP]Bartlewski, P. M.Jankowski, N.Padilha-Nakaghi, L. C. [UNESP]Oliveira, L. G. [UNESP]Bicudo, S. D. [UNESP]Fonseca, J. F.Vicente, W. R. R. [UNESP]2018-11-26T17:35:02Z2018-11-26T17:35:02Z2017-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article48-55application/pdfhttp://dx.doi.org/10.1016/j.anireprosci.2017.04.009Animal Reproduction Science. Amsterdam: Elsevier Science Bv, v. 182, p. 48-55, 2017.0378-4320http://hdl.handle.net/11449/16294510.1016/j.anireprosci.2017.04.009WOS:000404698700006WOS000404698700006.pdfWOS000404698700006.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnimal Reproduction Science0,704info:eu-repo/semantics/openAccess2023-10-03T06:04:06Zoai:repositorio.unesp.br:11449/162945Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-03T06:04:06Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes |
title |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes |
spellingShingle |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes Oliveira, M. E. F. [UNESP] Superovulation Sheep Ovarian antral follicles Color Doppler sonography Blood flow velocity |
title_short |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes |
title_full |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes |
title_fullStr |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes |
title_full_unstemmed |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes |
title_sort |
Relationship of antral follicular blood flow velocity to superovulatory responses in ewes |
author |
Oliveira, M. E. F. [UNESP] |
author_facet |
Oliveira, M. E. F. [UNESP] Bartlewski, P. M. Jankowski, N. Padilha-Nakaghi, L. C. [UNESP] Oliveira, L. G. [UNESP] Bicudo, S. D. [UNESP] Fonseca, J. F. Vicente, W. R. R. [UNESP] |
author_role |
author |
author2 |
Bartlewski, P. M. Jankowski, N. Padilha-Nakaghi, L. C. [UNESP] Oliveira, L. G. [UNESP] Bicudo, S. D. [UNESP] Fonseca, J. F. Vicente, W. R. R. [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Univ Guelph Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Oliveira, M. E. F. [UNESP] Bartlewski, P. M. Jankowski, N. Padilha-Nakaghi, L. C. [UNESP] Oliveira, L. G. [UNESP] Bicudo, S. D. [UNESP] Fonseca, J. F. Vicente, W. R. R. [UNESP] |
dc.subject.por.fl_str_mv |
Superovulation Sheep Ovarian antral follicles Color Doppler sonography Blood flow velocity |
topic |
Superovulation Sheep Ovarian antral follicles Color Doppler sonography Blood flow velocity |
description |
The aim of this study was to examine the association between antral follicular blood flow velocity and the response of ewes to hormonal ovarian superstimulation. Ten Santa Ines ewes were subjected to a short- (7 days; Group 1) or long-term (13 days; Group 2) progesterone (CIDR.; InterAg, Hamilton, New Zealand) priming, and a superovulatory treatment with porcine follicle stimulating hormone (pFSH; Folltropin (R)-V; Bioniche Animal Health, Belleville, ON, Canada), given twice daily for four consecutive days in decreasing doses and initiated four or ten days after CIDR insertion, respectively. Embryos were recovered surgically seven days after the last pFSH dose. From one day prior to until the end of the pFSH regimen (Days 1 to 3), all ewes underwent daily transrectal ultrasonography of ovaries. The number of high-velocity pixels (HVPs; 0.055-0.11 m/s or upper 50% of recordable velocities) on Day 1 correlated directly with the number of corpora lutea (CL; r = 0.92, P = 0.0002) and of viable embryos (r = 0.77, P = 0.01). Correlations were also recorded between the number of HVPs on Day 3 and the recovery rate (r = -0.69, P = 0.03), viability rate (r = -0.64, P = 0.05), and percentage of degenerated embryos (r = 0.65, P = 0.04). The percentage of HVPs relative to the total area of ovarian cross section on Day 1 was correlated with the number of CL (r = 0.95, P < 0.001) and of viable embryos (r = 0.85, P = 0.002). This parameter on Day 3 was also correlated with the recovery rate (r = -0.69, P = 0.03). The percentage of HVPs relative to the total Doppler area on Day 0 was correlated with the recovery rate (r = 0.72, P = 0.02). It can be concluded that sonographic assessment of high-velocity antral follicular blood flow has the makings of a useful non-invasive method to predict the outcome of the superovulatory treatment in ewes. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-01 2018-11-26T17:35:02Z 2018-11-26T17:35:02Z |
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.anireprosci.2017.04.009 Animal Reproduction Science. Amsterdam: Elsevier Science Bv, v. 182, p. 48-55, 2017. 0378-4320 http://hdl.handle.net/11449/162945 10.1016/j.anireprosci.2017.04.009 WOS:000404698700006 WOS000404698700006.pdf WOS000404698700006.pdf |
url |
http://dx.doi.org/10.1016/j.anireprosci.2017.04.009 http://hdl.handle.net/11449/162945 |
identifier_str_mv |
Animal Reproduction Science. Amsterdam: Elsevier Science Bv, v. 182, p. 48-55, 2017. 0378-4320 10.1016/j.anireprosci.2017.04.009 WOS:000404698700006 WOS000404698700006.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Animal Reproduction Science 0,704 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
48-55 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
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_ |
1792961449090351104 |