A year ago the pictures of sows in crates shocked New Zealand - pregnant sows living in crates, cramped and dirty.
The public demanded change, but has anything really happened since?
Close Up has new undercover footage which again will shock many.
It was filmed in three Waikato pig farms last weekend.
Hans Kriek from Save Animals from Exploitation, Safe, and the head of the NZ Pork Board Sam McIvor join Mike Hosking.