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Table 1.
Length of various phases of the oestrous cycle
| Oestrous phase | Cycle length (hours) | |
|---|---|---|
| Rats | Mice | |
| Proestrus | 14 | < 24 |
| Estrus | 24–48 | 12–48 |
| Metestrus | 6–8 | 8–24 |
| Diestrus | 48–72 | 48–72 |