Type of estrus: polyestrous (heat at fairly regular times- year round)
Frequency of estrus: Every 4-5 days
Length of estrus: Usually 12 hours (most often at night)
Return of estrus after delivery: 12-24 hours
Female menopause (estropause): 18 months (variable, but most common 15-18 months)
Pelvic fusing in females: No
Number of teats on a female: 12
Number of uteruses: 2 (“uterine horns”)
Pregnancy and Babies
Gestation: 21-23 days
Weaning age: 21-28 days
Average litter size: 6-12 (variable from 1-22)
Average size of newborn: 6-7 grams
Fur on babies: 7-10 days
Eyes open: 12-15 days
Ear canal open: 12-14 days
Descent of testes: 15-50 days
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2000 - 2024 by Karen Grant RN. All rights reserved.
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