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. 2010 Mar 11;5(3):e9639. doi: 10.1371/journal.pone.0009639

Figure 3. Total antibody concentration in nestlings at 0, 3, 6, 9, 12, and 15 days of age.

Figure 3

Mean ± SE plasma antibody concentration (measured as mg/ml) from nestlings sampled at 0, 3, 6, 9, 12, and 15 days of age. The antibodies in hatch day 0 nestlings were assumed to be maternal in origin, while those from nestlings 3–9 day old are assumed as being a mixture of endogenous and maternal antibodies. Antibody concentrations measured in 12 and 15 day old nestlings were determined to be endogenous in origin.