Figure 2From: Distribution and viability of spermatozoa in the canine female genital tract during post-ovulatory oocyte maturationOocytes collected by oviduct flushing a. 2 days after ovulation/insemination presenting a peripherally located germinal vesicle (arrow) with an undulating nuclear envelope, b. in metaphase-II stage 4 days after ovulation/insemination. The first polar body (PB) is extruded and the maternal chromatin (MC) can be recognized in the ooplasm.Back to article page