Figure 1From: Age-dependent role of steroids in the regulation of growth of the hen follicular wallVolumes of pre-ovulatory follicles with various degrees of maturation at different time points before ovulation in hens at distinct stages of the ovulatory cycle. A) YLC hens: n = 6 (I and II). B) OLC hens: n = 6 (I and II). C) OSC hens: n = 10 (I) and n = 6 (II). I and II: stages of the hen ovulatory cycle (1.5 and 14.5 h after ovulation, respectively). Results are expressed as means ± SEM. Means with different letters differ significantly (at least P < 0.05).Back to article page