What average weight are baby piglets when they are born and when they are weaned at 4 weeks?

1.5kg and 7kg. Their head and body length ranges from 0.9 to 1.8 m (35 to 71 in) and they can weigh between 50 and 350 kg (110 and 770 lb). They are born brownish coloured and tend to turn more grayish coloured with age. The upper canines form sharp distinctive tusks that curve outward and upward.

Compared to other artiodactyles, their head is relatively long, pointed, and free of warts. A typical pig has a large head with a long snout that is strengthened by a special prenasal bone and by a disk of cartilage at the tip. The snout is used to dig into the soil to find food and is a very acute sense organ.