Table 3. Preimplantation development of inbred strain (C57BL/6) mouse embryos cultured in a plastic bag without using an incubator.

Treatment	Controlled gas conc.	Conc. of CO2	Conc. of O2	Humidity	No. of cultured embryos	No. (%) of 2- cell embryos	No. (%) of morulae/ blastocysts
Control	Mixture*	5%	5%	100%	30	30 (100)	30 (100)
DeO2-WP	Air with deoxidizing agent	Not controlled	5%	Not controlled	100	99 (99)	93 (93)

^*5% CO₂, 5% O₂ and 90% N_2.