Fig. 2From: Cathepsin B inhibitor improves developmental competency and cryo-tolerance of in vitro ovine embryosEffect of E-64 (1 μM) during embryo culture medium on a blastocyst total cell number and b percentage of DNA fragmentation assessed by TUNEL assay. Mean values with asterisk denote significant difference at P < 0.05 compared to control. c TUNEL-positive cells that appeared in yellow-green. Scale bar represents 50 μmBack to article page