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Asian-Australas J Anim Sci > Volume 22(2); 2009 > Article
Asian-Australasian Journal of Animal Sciences 2009;22(2): 194-200. doi: https://doi.org/10.5713/ajas.2009.80344
Effects of Donor Cell Passage, Size and Type on Development of Porcine Embryos Derived from Somatic Cell Nuclear Transfer
Y. H. Zhang, E. S. Song, E. S. Kim, P. Q. Cong, S. H. Lee, J. W. Lee, Y. J. Yi, C. S. Park*
  Published online January 6, 2009.

ABSTRACT
The aim of this study was to investigate the effects of donor cell passage, size and type on the development of nuclear transfer embryos. Porcine cumulus cells, fetal fibroblasts and oviductal epithelial cells from 1-2, 3-6 and 7-10 passages were used for the nuclear transfer. In the oocytes with the cumulus donor cells, fusion and cleavage rates of oocytes and cell numbers per blastocyst among the three different passage groups did not show any differences, but the rates of blastocyst formation from 1-2 and 3-6 passage groups were higher than those from 7-10 passage group. The rates of fusion, cleavage and blastocyst formation, and the cell numbers per blastocyst were higher in the embryos with the sizes of <20 and 20 m cumulus donor cells compared to the >20 m cumulus donor cell. In the oocytes with the fetal fibroblast donor cells, the rate of blastocyst formation from the 3-6 passage group was higher than from 1-2 and 7-10 passage groups. The embryos with the size of 20 m fetal fibroblast donor cell showed higher rate of blastocyst formation compared to those with <20 and >20 m donor cells. In the oocytes with the oviductal epithelial cells, the rates of blastocyst formation from 1-2 and 3-6 passage groups were higher compared to those from 7-10 passage group. The embryos with the sizes of <20 and 20 m oviductal epithelial donor cells had a higher rate of blastocyst formation compared to those with >20 m donor cell. Fusion and cleavage rates of oocytes, and cell numbers per blastocyst among the three different donor cell types from the 3-6 passage did not show any differences. However, the rate of blastocyst formation of somatic cell nuclear transfer (SCNT) embryos with the fetal fibroblast donor cell was higher than that of blastocyst formation of SCNT embryos with the cumulus and oviductal epithelial donor cells.
Keywords: Donor Cell;Passage;Size;Nuclear Transfer;Porcine
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