01290naa a2200289 a 450000100080000000500110000800800410001902400270006010000200008724501160010726000090022352004560023265000200068865000210070865000330072965000290076265000140079165000100080565000130081565000100082865000170083865300140085565300250086965300180089470000170091277300710092915232862023-05-22       1974    bl uuuu     u00u1 u    #d7 a10.1071/BI97405052DOI1 aTROUNSON, A. O.  aAttempts to produce identical offspring in the sheep by mechanical division of the ovum.h[electronic resource]  c1974  aAbstract: In an attempt to produce identical offspring artificially, the inner cell mass of ova, collected on days 4, 6 and 7 after oestrus (day 0 = day of oestrus), was mechanically divided into two equal sections. The sections were then either cultured in vitro for 2 days and the resulting apparently normal blasto-cysts transferred to recipient ewes or, in the case of day-7 ova, transferred to recipient ewes without a period of in vitro culture.  aEmbryo transfer  aFemale fertility  aFertilization (reproduction)  aHomologous recombination  aPregnancy  aSheep  aEmbrião  aOvino  aReprodução  aBisseccao  aOvum transplantation  aTransferencia1 aMOORE, N. W.  tAustralian Journal Biology Sciencegv. 27, n. 5, p. 505-510, 1974.