Heat period
The usual length of the oestrous cycle is 3 weeks (21 days) but shorter or longer periods may be seen in the range of 18-24 days. The length of the heat period is very variable among sows/gilts.
Attribution: Avallain
The usual length of the oestrous cycle is 3 weeks (21 days) but shorter or longer periods may be seen in the range of 18-24 days. The length of the heat period is very variable among sows/gilts.
Attribution: Avallain