Figure 2.

Relationship between individual birth weight and piglet survival during farrowing (a, left), relationship between individual birth weight and lactation survival including a breakpoint at 50% lactation survival (b, right). The size of the points reflects the number (Nr) of piglets included. The relationship between individual birth weight and survival is curvilinear. Within this population, piglets with birth weights of ±900 g have >80% farrowing survival. Relatively few piglets fall within the category of <50% lactation survival using a breakpoint model set at 50%.