Figure 2
From: Bovine Sperm Sexing Alters Sperm Morphokinetics and Subsequent Early Embryonic Development
Comparison of embryo arrest, blastocyst rate, mean developmental time and bull effect in sexed and conventional embryos by time-lapse videomicroscopy. (A) The percentage of unfertilized oocytes and arrested zygotes is significantly higher when using sexed-sperm compared to conventional sperm. Sexed-sperm derived 4-cell embryos and blastocysts reveal significantly increased embryo arrest compared to conventional embryos (Fisher’s exact test, p < 0.05). The cumulative arrest of the 2 cell embryo to blastocyst stage was significantly increased in embryos derived from sexed-sperm compared to conventional embryos (Chi-Square Test, p < 0.05) (B) There was no significant difference in average timing of embryonic development before and after sexing (p > 0.05, Mann-Whitney U-test). (C) The individual sire had a significant effect on embryo survival time (Cox proportional-hazards regression, p < 0.001).
