Table 2 Comparison of reproductive parameters (mean ± SD) between control and treatment groups
From: The influence of oestrous substances on cyclicity and oestrous behaviour in dairy heifers
Parameter | Control | Treatment | ||
|---|---|---|---|---|
N | Mean ± SD | N | Mean ± SD | |
Ovulatory interval (days) | 17 | 20.1 ± 1.5 | 20 | 20.2 ± 1.2 |
LH peak interval (days) | 15 | 20.2 ± 1.5 | 18 | 20.4 ± 1.1 |
Growth rate of dominant follicle (mm/day) | 15 | 0.9 ± 0.3 | 16 | 0.9 ± 0.5 |
Max. oestradiol conc. to onset of standing oestrusa (h) | 18 | 3.2 ± 9.5 | 19 | 5.6 ± 8.7 |
Onset of standing oestrusa to LH peak (h) | 18 | 2.0 ± 4.9 | 19 | 0.42 ± 6.6 |
Onset of standing oestrusa to ovulation (h) | 18 | 26.9 ± 4.8 | 19 | 25.3 ± 7.0 |
Duration of standing oestrusa (h) | 19 | 12.2 ± 5.3 | 20 | 10.9 ± 5.4 |
End of standing oestrusa to ovulation (h) | 18 | 14.1 ± 4.4 | 19 | 13.8 ± 5.0 |
LH peak to ovulation (h) | 19 | 24.9 ± 1.9 | 19 | 24.9 ± 2.1 |
Size of ovulatory follicle (mm) | 19 | 13.1 ± 1.4 | 20 | 12.6 ± 1.2 |