Relationship of antral follicular blood flow velocity to superovulatory responses in ewes
dc.contributor.author | Oliveira, M. E. F. [UNESP] | |
dc.contributor.author | Bartlewski, P. M. | |
dc.contributor.author | Jankowski, N. | |
dc.contributor.author | Padilha-Nakaghi, L. C. [UNESP] | |
dc.contributor.author | Oliveira, L. G. [UNESP] | |
dc.contributor.author | Bicudo, S. D. [UNESP] | |
dc.contributor.author | Fonseca, J. F. | |
dc.contributor.author | Vicente, W. R. R. [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Univ Guelph | |
dc.contributor.institution | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) | |
dc.date.accessioned | 2018-11-26T17:35:02Z | |
dc.date.available | 2018-11-26T17:35:02Z | |
dc.date.issued | 2017-07-01 | |
dc.description.abstract | 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. | en |
dc.description.affiliation | 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, Brazil | |
dc.description.affiliation | Univ Guelph, Dept Biomed Sci, Ontario Vet Coll, Guelph, ON N1G 2W1, Canada | |
dc.description.affiliation | Sao Paulo State Univ, Dept Clin & Vet Surg, Coll Agr & Vet Sci, BR-14884900 Jaboticabal, SP, Brazil | |
dc.description.affiliation | Sao Paulo State Univ, Fac Vet Med & Anim Sci, Dept Anim Reprod & Vet Radiol, BR-18618970 Botucatu, SP, Brazil | |
dc.description.affiliation | Brazilian Agr Res Corp, Embrapa Goats & Sheep, BR-36155000 Coronel Pacheco, MG, Brazil | |
dc.description.affiliationUnesp | 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, Brazil | |
dc.description.affiliationUnesp | Sao Paulo State Univ, Dept Clin & Vet Surg, Coll Agr & Vet Sci, BR-14884900 Jaboticabal, SP, Brazil | |
dc.description.affiliationUnesp | Sao Paulo State Univ, Fac Vet Med & Anim Sci, Dept Anim Reprod & Vet Radiol, BR-18618970 Botucatu, SP, Brazil | |
dc.description.sponsorship | Natural Sciences and Engineering Research Council of Canada | |
dc.description.sponsorship | Department of Biomedical Sciences, University of Guelph | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.format.extent | 48-55 | |
dc.identifier | http://dx.doi.org/10.1016/j.anireprosci.2017.04.009 | |
dc.identifier.citation | Animal Reproduction Science. Amsterdam: Elsevier Science Bv, v. 182, p. 48-55, 2017. | |
dc.identifier.doi | 10.1016/j.anireprosci.2017.04.009 | |
dc.identifier.file | WOS000404698700006.pdf | |
dc.identifier.file | WOS000404698700006.pdf | |
dc.identifier.issn | 0378-4320 | |
dc.identifier.uri | http://hdl.handle.net/11449/162945 | |
dc.identifier.wos | WOS:000404698700006 | |
dc.language.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartof | Animal Reproduction Science | |
dc.relation.ispartofsjr | 0,704 | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | Superovulation | |
dc.subject | Sheep | |
dc.subject | Ovarian antral follicles | |
dc.subject | Color Doppler sonography | |
dc.subject | Blood flow velocity | |
dc.title | Relationship of antral follicular blood flow velocity to superovulatory responses in ewes | en |
dc.type | Artigo | |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dcterms.rightsHolder | Elsevier B.V. | |
unesp.campus | Universidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatu | pt |
unesp.department | Clínica e Cirurgia Veterinária - FCAV | pt |
unesp.department | Medicina Veterinária Preventiva e Reprodução Animal - FCAV | pt |
unesp.department | Reprodução Animal e Radiologia Veterinária - FMVZ | pt |
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