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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).
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Reproductive Biology and Endocrinology

ISSN: 1477-7827

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