Better Quality and More Usable Embryos Obtained on Day 3 Cultured in 5% Than 20% Oxygen: A Controlled and Randomized Study Using the Sibling Oocytes

In conclusion, 20% O2 reduced the mean cell numbers of embryo and the number of clinically useable embryos on day 3. However, there was no subsequent negative impact on development of day 4 and blastocyst stage.

Source: Reproductive Sciences - February 8, 2016 Category: Reproduction Medicine Authors: Peng, H., Shi, W., Zhang, W., Xue, X., Li, N., Li, W., Shi, J. Tags: Original Articles Source Type: research