The primaryfollicles and secondary follicles of Rex rabbits appeared during the 18th to 24th day of embryo development.
力克斯兔的初级毛囊、次级毛囊于胚胎的18 ~ 24天先后出现。
2
All primaryfollicles matured at the age of 135 days in the foetal period and secondary follicles developed until 6 months after birth.
初级毛囊的发育在胎儿期135日龄时已完成,而次级毛囊发育直至出生后6月龄。
3
These anatomical divisions also represent functional compartments in that the cortex, with its primary and secondary lymphoid follicles, is composed largely of B cells.