What limits growth in piglets?

We all know very well that young pigs fail to realise their full potential for growth, at least in the period immediately post-weaning. With this statement, I would like to invite our readers to contribute their thoughts on the reasons or factors that limit post-weaning growth and (or) feed intake. My own thoughts on this very controversial topic are below: Nutrition The major drive for growth in post-weaned pigs is believed to be feed intake, or rather more correctly, energy intake, as it has