Approximate Gestation Periods
Domestic Animals | Days |
|---|---|
Cat | 65 |
Cattlea | |
Angus | 281 |
Ayrshire | 279 |
Brahman | 292 |
Brown Swiss | 290 |
Charolais | 289 |
Guernsey | 283 |
Hereford | 285 |
Holstein | 279 |
Jersey | 279 |
Limousin | 289 |
Shorthorn | 282 |
Simmental | 289 |
Dog | 62–64b |
Donkey | 365 |
Goat | 150 |
Horsec | 335–342 |
Llama, Alpacac | 335–365 |
Pig | 114 |
Rabbit | 31 |
Sheep | 150 |
Wild Animals | Days |
Bear (Black) | 210 |
Bison | 280 |
Camel | 365-400 |
Chimpanzee | 236 |
Coyote | 63 |
Deer (Mule and White-tailed) | 200 |
Elephant | 660 |
Elk, Wapiti | 255 |
Giraffe | 425 |
Gorilla | 270 |
Hare | 36 |
Hippopotamus | 240 |
Leopard | 95 |
Lion | 108 |
Marmoset | 150 |
Monkey (Macaque) | 180 |
Moose | 235 |
Muskox | 255 |
Muskrat | 29 |
Nutria, Coypu | 130 |
Opossum | 12 |
Otter | 270–300d |
Panther | 90 |
Porcupine | 210 |
Pronghorn | 250 |
Raccoon | 63 |
Reindeer | 225 |
Rhinoceros (African) | 480 |
Seal | 330 |
Shrew | 20 |
Skunk | 63 |
Squirrel (Gray) | 40 |
Tapir | 390 |
Tiger | 103 |
Walrus | 450 |
Whale | 450 |
Woodchuck | 31 |
Wolf | 63 |
Farmed Fur Animals | Days |
Chinchilla | 111 |
Ferret | 42 |
Fox | 52 |
Mink | |
European | 41 |
American | 40–75 |
a Individuals may range ±7–10 days from these averages. | |
b Gestation period is 58–72 days from breeding at unknown stage of estrus; from day of ovulation (which can be determined by progesterone or LH monitoring), gestation period is 62–64 days. | |
c Individuals may range 20 days from these averages. | |
d 180+ days due to delayed implantation | |