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Fig. 2. (A) Total body mass increments (least square means corrected for initial
body mass) in the course of our study; (B) body mass increments (least square
means corrected for body mass at injection) during day 3, i.e. following the
immune challenge, and (C) magnitude of phytohaemagglutinin (PHA)-induced
swelling response (an estimate of immune function) in nestlings subjected to
three feeding regimes. All variables are log-transformed. Horizontal lines
denote mean values, boxes denote s.e.m. Squares, triangles and circles denote
food-restricted group (FR), intermediate group (I) and ad libitum fed
group (AL), respectively. Different letters above symbols indicate significant
between-group differences (P<0.05), tested by pair-wise
t-tests.