GBW of the replacement feather in relation to stage in the breeding cycle.

Abstract

<p>Linear mixed models of GBW of the replacement R₄ on breeding stage in the pre-laying (breeding stage ≤ 0) or the post-clutch initiation period (breeding stage>0), and linear mixed model with second order polynomial terms of breeding stage testing for a difference in the relationship between GBW and breeding stage in either sex.</p