Fig. 3. Variation in (A) mean cellular volume and (B) reticulocyte index (%) across the reproductive cycle on a high-quality diet (different lowercase letters indicate differences in means at P<0.05 using Tukey–Kramer adjustment); and variation in (C) mean cellular volume and (D) reticulocyte index across the egg-laying cycle on a high-quality (filled circles) versus low-quality (open circles) diet. Values are least-square means ± s.e.m.