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dc.creatorFigueira, Lucas Machado-
dc.creatorAlves, Nadja Gomes-
dc.creatorBatista, Ribrio Ivan Tavares Pereira-
dc.creatorBrair, Viviane Lopes-
dc.creatorLima, Renato Ribeiro-
dc.creatorOliveira, Maria Emilia Franco-
dc.creatorFonseca, Jeferson Ferreira-
dc.creatorSouza‐Fabjan, Joanna Maria Gonçalves-
dc.date.accessioned2020-05-14T12:46:55Z-
dc.date.available2020-05-14T12:46:55Z-
dc.date.issued2019-11-
dc.identifier.citationFIGUEIRA, L. M. et al. Pregnancy rate after fixed‐time transfer of cryopreserved embryos collected by non‐surgical route in Lacaune sheep. Reproduction in Domestic Animals, [S.l.], v. 54, n. 11, p. 1493-1496, Nov. 2019.pt_BR
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/10.1111/rda.13550pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/40896-
dc.description.abstractThis study investigated the feasibility of applying fixed‐time (cryopreserved) embryo transfer in ewes. Embryos (n = 106) were non‐surgically recovered from superovulated donors (n = 39) on day 6–7 after oestrus. Straws containing one or two embryos (morulae and/or blastocysts) subjected to either slow freezing (SF, n = 62) or vitrification (VT, n = 44) were randomly used within fixed‐time embryo transfer on Day 8.5. Recipient ewes were nulliparous (n = 58) bearing corpora lutea after synchronous oestrous induction protocol. The pregnancy rate was higher (p = .03) in SF (39.4%) than VT (16.9%) and survival rate tended (p = .08) to be higher in SF than in VT (25.8% vs. 15.9%). Lambing rates were similar (p = .13) between SF (20.9%) and VT (15.9%). Embryos recovered by non‐surgical route after cervical dilation treatment and later cryopreserved by either slow freezing or vitrification produced reasonable pregnancy rates after FTET.pt_BR
dc.languageen_USpt_BR
dc.publisherWileypt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceReproduction in Domestic Animalspt_BR
dc.subjectEmbryo cryopreservationpt_BR
dc.subjectMultiple ovulation and embryo transferpt_BR
dc.subjectOvinept_BR
dc.titlePregnancy rate after fixed‐time transfer of cryopreserved embryos collected by non‐surgical route in Lacaune sheeppt_BR
dc.typeArtigopt_BR
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