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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
18/11/2019 |
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Data da última atualização: |
10/01/2025 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
FIGUEIRA, L. M.; ALVES, N. G.; BATISTA, R. I. T. P.; BRAIR, V. L.; LIMA, R. R.; OLIVEIRA, M. E. F.; FONSECA, J. F. da; SOUZA-FABJAN, J. M. G. |
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Afiliação: |
LUCAS MACHADO FIGUEIRA, UNIVERSIDADE FEDERAL DE LAVRAS; NADJA GOMES ALVES; RIBRIO IVAN TAVARES PEREIRA BATISTA, UNIVERSIDADE FEDERAL FLUMINENSE; VIVIANE LOPES BRAIR, UNIVERSIDADE FEDERAL FLUMINENSE; RENATO RIBEIRO LIMA; MARIA EMILIA FRANCO OLIVEIRA, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; JEFERSON FERREIRA DA FONSECA, CNPC; JOANNA MARIA GONÇALVES SOUZA-FABJAN, UNIVERSIDADE FEDERAL FLUMINENSE. |
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Título: |
Pregnancy rate after fixed-time transfer of cryopreserved embryos collected by non-surgical route in Lacaune sheep. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 54, n. 11, p. 1493-496, Nov. 2019. |
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DOI: |
http://dx.doi.org/10.1111/rda.13550 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This 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. |
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Palavras-Chave: |
Embryo cryopreservation; Multiple ovulation; Ovine; Taxa de prenhez. |
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Thesagro: |
Ovino; Ovulação; Transferência de Embrião. |
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Thesaurus Nal: |
Animal reproduction; Embryo transfer; Ewes; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02005naa a2200349 a 4500
001 2114500
005 2025-01-10
008 2019 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1111/rda.13550$2DOI
100 1 $aFIGUEIRA, L. M.
245 $aPregnancy rate after fixed-time transfer of cryopreserved embryos collected by non-surgical route in Lacaune sheep.$h[electronic resource]
260 $c2019
520 $aAbstract: This 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.
650 $aAnimal reproduction
650 $aEmbryo transfer
650 $aEwes
650 $aSheep
650 $aOvino
650 $aOvulação
650 $aTransferência de Embrião
653 $aEmbryo cryopreservation
653 $aMultiple ovulation
653 $aOvine
653 $aTaxa de prenhez
700 1 $aALVES, N. G.
700 1 $aBATISTA, R. I. T. P.
700 1 $aBRAIR, V. L.
700 1 $aLIMA, R. R.
700 1 $aOLIVEIRA, M. E. F.
700 1 $aFONSECA, J. F. da
700 1 $aSOUZA-FABJAN, J. M. G.
773 $tReproduction in Domestic Animals$gv. 54, n. 11, p. 1493-496, Nov. 2019.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
