Figure 7.

Relationship between body weight at mating and OR and number of life foetuses (LF) based on the same lines as in figure 4 (G15 and 16), one-way (OWC) and two-way line crosses (TWC) and a control line. OWC: purebred females mated to males of other lines ((H(igh) by H, H by L(ow) and L by L to remove inbreeding from the embryos/foetuses; one-way cross). TWC: (open symbols): matings of F and M derived from OWC with their specific regression line (dashed line). ov and fv: observed values and function values. Experimental details and data were given elsewhere (Wahlroos 2002; Wahlroos et al. 2002).