Winnipeg Humane Society staff say they're disappointed that the organization was asked to leave the Hanover Ag Fair in Grunthal, Man., on Saturday, after setting up an animal welfare display that featured a papier mâché pig and a human-sized cage at the on Saturday. 

The humane society said the display was intended to raise awareness around gestation crates or "sow stalls" — metal, cage-like enclosures that are about two metres long and half a metre wide. 

Krista Boryskavich, an animal advocacy l…