What the text books don’t tell you about…The economics of stocking density

The textbooks either touch on, or cover comprehensively, the subject of stocking density of pigs. What none of them that I’ve consulted have yet discussed is the cost of not following the good advice they give.  Yes – plenty of evidence exists on the reduction in physical performance when the spatial needs of pigs are compromised. Work by Edwards, Armsby and Spechter; Powell and Brown and other scientists have illustrated this very well.So how much does it cost the pig producer