When do piglets wean?

The weaning time of piglets is related to the annual litter size of sows and the number of live piglets. In general industrialized and intensive pig farms, piglets can be weaned in 4 to 5 weeks, and rural farmers can be weaned in about 7 weeks.

Extended data:

Newborn piglets are very sensitive to the decrease of environmental temperature because of their low energy reserves and incomplete hormonal regulation of energy metabolism. Newborn piglets are small in size, relatively large in body surface area per unit weight, lacking dense coat and underdeveloped in subcutaneous fat, so their body temperature loses quickly and recovers slowly in low temperature environment. The optimum temperature of piglets is about 35℃ within 6 hours after birth, 32 ~ 34℃ within 2 days, and it can be gradually reduced from 30℃ to 25℃ after 7 days.

Incomplete digestive function

Although the digestive organs of Miao pigs have been formed in the embryonic period, their structure and function are not perfect. With the growth and development of Miao pig, the development and digestive function of its digestive organs have a series of obvious age characteristics. The digestive system of piglets grows fastest during lactation, and the stomach weight at 60 days old is about 150g, which is about 50 times that at birth. The digestive organs of Miao pigs not only develop with age, but also are influenced by feeding and feed.

(Data expansion: Baidu Encyclopedia: Piggy)