| Type | MGI:General | Description | at 3 months of age, all heterozygous females show prolonged cycles (~6.2 days) due to extended diestrus versus ~4.9 day cycles in wild-type females at 7 months, the mean length of estrous cycle for heterozygous females is ~11.6 days with a range of 4-15 days versus ~5.6 day cycles with a range of 4-7 days in wild-type controls at 7 months long estrus cycles are interspersed with short ones, and intermittent ovulatory cycles are intermingled with acyclic periods |
