Animal Reproduction: Gestation, Birthweight, and Parturition Terms

Gestation length of a horse

~340 days (11 months)

Average birthweight of a foal

90-110 lbs

Mature weight of a horse

900-1,200 lbs

Parturition term for horses

Foaling

Gestation length of cattle

~283 days (9 months)

Average birthweight of a calf

60-100 lbs

Market/mature weight of cattle

Beef: 1,100-1,300 lbs | Dairy: 1,000-1,800 lbs

Parturition term for cattle

Calving

Gestation length of a goat

~150 days (5 months)

Average birthweight of a kid

5-8 lbs

Mature weight of a goat

100-150 lbs

Parturition term for goats

Kidding

Gestation length of sheep

~147 days (5 months)

Average birthweight of a lamb

8-12 lbs

Market weight of sheep

120-160 lbs

Parturition term for sheep

Lambing

Gestation length of a dog

~63 days (2 months)

Average birthweight of puppies

0.5-1.5 lbs (varies by breed)

Mature weight of dogs

10-100+ lbs (breed dependent)

Parturition term for dogs

Whelping

Gestation length of a cat

~63 days (2 months)

Average birthweight of kittens

3-4 oz

Mature weight of cats

8-15 lbs

Parturition term for cats

Queening

Gestation length of a rabbit

~31 days (1 month)

Average birthweight of a kit

1.5-2 oz

Market weight of rabbits

4-5 lbs (fryer)

Parturition term for rabbits

Kindling

Egg incubation length for catfish

5-10 days (depends on water temp)

Average hatchling size of catfish fry

0.02-0.05 oz

Market weight of catfish

1-2 lbs

Parturition term for catfish

Spawning

Gestation length of swine

~114 days (3 mo, 3 wk, 3 d)

Average birthweight of piglets

2.5-4 lbs

Market weight of swine

250-280 lbs

Parturition term for swine

Farrowing