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Table 3 Mean follicular diameter and hormonal concentrations within the waves of follicular development during 2-wave and 3-wave interovulatory intervals

From: Ovarian follicular activity and hormonal profile during estrous cycle in cows: the development of 2 versus 3 waves

  2-wave interovulatory intervals 3-wave interovulatory intervals
  Wave 1 Wave 2 Wave 1 Wave 2 Wave 3
Length of days 8.7 ± 0.3 10.8 ± 0.3 7.2 ± 0.7 7.7 ± 0.4 9.5 ± 0.4
Maximum follicular diameter (mm) 6.65 ± 0.14 a 10.9 ± 0.90 b 7.0 ± 0.19 b 6.9 ± 0.18 b 11.0 ± 0.9 a
Estradiol concentration (pg/ml) 4.68 ± 0.18 a 5.95 ± 0.70 b 4.60 ± 0.13 b 4.81 ± 0.23 b 5.23 ± 0.29 a
Progesterone concentration (ng/ml) 1.17 ± 0.13 a 0.75 ± 0.27 b 1.21 ± 0.18 b 1.78 ± 0.15 a 1.03 ± 0.10 b
  1. Values are means ± SEM. Means with different letters (a,b) in the same row and same intervals are significantly different (P < 0.05)(LSD).