Based on in-vitro produced (IVP) bovine embryos, embryo proper and embryonic/fetal membranes were studied in 12 pregnancies from day 26 to 47. The embryos/fetuses displayed external as well as internal development of organs and structures according to the expectations from comparable in-vivo studies. However, the embryonic/fetal membranes were shorter than those reported for in-vivo-derived embryos/fetuses on days 26-35 of calculated age, whereas on days 41-47 they were of comparable lengths.
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| http://dx.doi.org/10.1016/j.repbio.2020.10.001 | DOI Listing |
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