02005naa a2200349 a 450000100080000000500110000800800410001902400450006010000200010524501430012526000090026852009550027765000240123265000200125665000090127665000100128565000100129565000150130565000310132065300280135165300230137965300100140265300200141270000170143270000250144970000170147470000160149170000230150770000220153070000270155277300760157921145002025-01-10       2019    bl uuuu     u00u1 u    #d7 ahttp://dx.doi.org/10.1111/rda.135502DOI1 aFIGUEIRA, L. M.  aPregnancy rate after fixed-time transfer of cryopreserved embryos collected by non-surgical route in Lacaune sheep.h[electronic resource]  c2019  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.  aAnimal reproduction  aEmbryo transfer  aEwes  aSheep  aOvino  aOvulação  aTransferência de Embrião  aEmbryo cryopreservation  aMultiple ovulation  aOvine  aTaxa de prenhez1 aALVES, N. G.1 aBATISTA, R. I. T. P.1 aBRAIR, V. L.1 aLIMA, R. R.1 aOLIVEIRA, M. E. F.1 aFONSECA, J. F. da1 aSOUZA-FABJAN, J. M. G.  tReproduction in Domestic Animalsgv. 54, n. 11, p. 1493-496, Nov. 2019.