Table 1. Folliculogenesis features in sheep and women
	Sheep	Women	References
Primordial follicles	40.8 (28.1-60.5) μm	35.4 (29.2-41.6) μm	Lundy et al., 1999; Gougeon & Chainy, 1987
Oocytes from primordial follicles	34.6 (22.8-52.3) μm	32.1 (26.1-38.1) μm	Lundy et al., 1999; Gougeon & Chainy, 1987
Primary follicles	75.2 (49.7-118.2) μm	46.0 (39.8-52.2) μm	Lundy et al., 1999; Gougeon & Chainy, 1987
Oocytes from primary follicles	52.1 (31.0-80.0) μm	32.6 (27.7-37.5) μm	Lundy et al., 1999; Gougeon & Chainy, 1987
Secondary follicles	194.1 (164.2-256.3) μm	77.2 (66.3-88.1) μm	Lundy et al., 1999; Gougeon & Chainy, 1987
Oocytes from secondary follicles	72.9 (40.6-92.0) μm	47.8 (35.8-59.8) μm	Lundy et al., 1999; Gougeon & Chainy, 1987
Ovaries length, width and thickness	1.7 x 1.2 x 1 cm	3 x 1.5-2 x 1 cm	Mohammadpour, 2007; Gartner; Hiatt, 2003
Folliculogenesis duration	Approximately 170 days	More than 200 days	Cahill & Mauleon, 1980; Gougeon, 1986