dc.contributor | Universidade Federal de Lavras (UFLA) | |
dc.contributor | Universidade Federal Fluminense (UFF) | |
dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) | |
dc.date.accessioned | 2019-10-06T15:55:53Z | |
dc.date.accessioned | 2022-12-19T18:38:24Z | |
dc.date.available | 2019-10-06T15:55:53Z | |
dc.date.available | 2022-12-19T18:38:24Z | |
dc.date.created | 2019-10-06T15:55:53Z | |
dc.date.issued | 2019-01-01 | |
dc.identifier | Reproduction in Domestic Animals. | |
dc.identifier | 1439-0531 | |
dc.identifier | 0936-6768 | |
dc.identifier | http://hdl.handle.net/11449/188057 | |
dc.identifier | 10.1111/rda.13550 | |
dc.identifier | 2-s2.0-85072016229 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5369095 | |
dc.description.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. | |
dc.language | eng | |
dc.relation | Reproduction in Domestic Animals | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | embryo cryopreservation | |
dc.subject | multiple ovulation and embryo transfer | |
dc.subject | ovine | |
dc.title | Pregnancy rate after fixed-time transfer of cryopreserved embryos collected by non-surgical route in Lacaune sheep | |
dc.type | Artículos de revistas | |