Fig. 6From: High in vitro survival rate of sheep in vitro produced blastocysts vitrified with a new method and deviceHatching rates of vitrified early (EB) and expanded blastocysts (FEB) by Two-step (TS) and Multi-step (MS) methods and control (CTR) after in vitro culture for 48 h. Different letters among columns indicate significant differences (P ≤ 0.01; Chi-square test)Back to article page