Figure 2.
Response to selection of (a) absolute egg size in the two replicates, (b) yolk, albumen and shell mass (replicates pooled), (c) absolute egg size and tarsus length and (d) absolute egg size and body mass. Both axes are in units of s.d. SCX is the cumulative selection differential on absolute egg size between the lines, RC is the cumulative response to selection in absolute egg size between the lines and CRCY is the cumulative correlated response to selection between the lines in traits indicated by the legends. Lines represent estimates of realized (co-)heritability.