Table 4 Two-way ANCOVA showing the effect and interactions between the dependent variable, duration of receptivity, with respect to the covariable weight of the seminal receptacle (SR), and two independent factors: type of female and study area
Effect | SS | Degree of freedom | MS | F | P |
|---|---|---|---|---|---|
Intercept | 550.4207 | 1 | 550.4207 | 225.4025 | *** |
1. Weight of the SR | 60.1019 | 1 | 60.1019 | 24.6123 | *** |
2. Type of female | 287.3699 | 1 | 287.3699 | 117.6807 | *** |
3. Study area | 93.9718 | 1 | 93.9718 | 38.4824 | *** |
2 × 3 | 0.0356 | 1 | 0.0356 | 0.0146 | ns |
Error | 256.4043 | 105 | 2.4419 | Â | Â |