Ovarian and uterine changes of gray squirrels as affected by season, aged, reproductive state and exogenous hormones
Cowles, Cleveland J.
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Sixty-seven adult and 42 subadult female gray squirrels (Sciurus carolinensis) were collected over a period of one year between December, 1966 and November, 1967 in the vicinity of Blacksburg, Virginia. Each squirrel was classified as being in one of four reproductive states (vaginal orifice closed, vaginal orifice open, pregnant, or lactating). Differences in ovarian and uterine characteristics due to month, age, and reproductive state were analysed by analysis of variance and a multiple range test. Pregnant adults had significantly (P
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