1 “...This study takes an in-depth look at the pig sector in OECD countries and draws some conclusions...”

2 Subjects: “...traditional pig products...”

3 “...The Pig Sector...”

4 Subjects: “...pigs...”

5 Subjects: “...pig house...”

6 Subjects: “...pig house...”

7 “... and the environment in various agricultural sectors, including the arable crops, dairy and pig sectors...”

8 “... agriculture, trade and the environment. The first study on the pig sector was published in 2003...”