Fig. 1. Histogram plots of correlation coefficients, r, for specific particle diameter classes of very-low density lipoprotein (VLDL) isolated from the plasma of (A) laying chickens [fig. 6 from Walzem (Walzem, 1996)], and (B) laying zebra finches. Correlation coefficients were generated from correlations between the proportion of VLDL particles within each diameter class and subsequent egg production (i.e. laying rate in chickens and mean egg mass in zebra finches). VLDL particle diameter classes with r>0 were positively associated with egg production, and were therefore included in estimates of yolk-targeted VLDL (VLDLy) particle diameter range.