Fig. 6.
Sertoli cell nuclei at 7 (A), 30 (B), 60 (C), 90 (D), 120 (E) and 180 (F) d of age in pigs. In all prepubertal ages investigated (A to E), immature Sertoli cells exhibited two different nuclear patterns: round/ovoid (arrows) or elongated (arrowheads). After puberty (F), only typically mature Sertoli cell nuclei (*) with evident nucleolus were found. A–E, bar = 30 μm; F, bar = 20 μm.