Figure 5From: Development to the blastocyst stage, the oxidative state, and the quality of early developmental stage of porcine embryos cultured in alteration of glucose concentrations in vitro under different oxygen tensionsFragmented TUNEL-labeled nuclei (arrow) were present in almost all blastocysts, irrespective of the culture medium. The blastocysts shown were derived from the Pyr-Lac group (A) or the Gluc-20 group (B) and developed under 5% oxygen. Scale bars represent 20 μm.Back to article page