Fig. 3. (A) Relationship between the magnitude of phytohaemagglutinin (PHA)-induced swelling response and total body mass increments in the course of the whole experiment, and (B) relationship between the magnitude of PHA-induced swelling response and body mass increments during day 3, i.e. following the immune challenge in the food-restricted group (FR; squares), intermediate group (I; triangles), and ad libitum fed group (AL; circles). All variables are log-transformed. Broken lines denote within-group trends, whereas solid lines denote the trend across all experimental groups.