Term | Paired testes mass | Epididymal sperm count | Daily sperm production | Seminal vesicles mass |
---|
 | F
| P
| F
| P
| F
| P
| F
| P
|
---|
SC | 5.81 | 0.02 | 8.48 | 0.007 | 5.22 | 0.03 | 4.37 | 0.046 |
MR | 0.06 | 0.81 | 0.12 | 0.73 | 0.09 | 0.76 | 0.21 | 0.65 |
SC × MR | 0.48 | 0.49 | 0.32 | 0.58 | 1.96 | 0.17 | 0.06 | 0.81 |
- Summary of ANOVAs testing for the effects of sperm competition risk (SC) and potential mating rate (MR) treatments on four ejaculate production parameters: paired testes mass, epididymal sperm count and daily sperm production (all sperm production measures), plus seminal vesicles mass (a measure of seminal fluid production, see Table 1 for details). In all cases, the degrees of freedom for each F test, d.f. = 1,28 except for daily sperm production where one subject was excluded and so d.f. = 1,27.
- ANOVA analysis of variance