Table 1.
Phenotypic and genetic correlations among male fertility characteristics1
| Trait | Head anomalies | Tail anomalies | Motility | Concentration | Volume | Sire nonreturn rate |
|---|---|---|---|---|---|---|
| Head anomalies | 0 | 0.8380 | −0.7083 | −0.0018 | 0.0278 | −0.1640 |
| (0.0001) | (0.0002) | (0.0003) | (0.0003) | (0.0002) | ||
| Tail anomalies | 0.8363 | 0 | −0.7739 | −0.0131 | 0.0588 | −0.1580 |
| (0.0203) | (0.0002) | (0.0003) | (0.0003) | (0.0002) | ||
| Motility | −0.6767 | −0.7380 | 0.1160 | 0.0858 | −0.1271 | 0.1598 |
| (0.0273) | (0.0250) | (0.0410) | (0.0003) | (0.0003) | (0.0002) | |
| Concentration | NS2 | NS | NS | 0.2588 | −0.3503 | 0.0174 |
| (0.0517) | (0.0002) | (0.0003) | ||||
| Volume | 0.1044 | 0.1143 | −0.1671 | −0.3629 | 0.2102 | −0.0745 |
| (0.0368) | (0.0367) | (0.0364) | (0.0345) | (0.0436) | (0.0003) | |
| Sire nonreturn rate | −0.2344 | −0.2336 | 0.2340 | NS | −0.1392 | NA |
| (0.0360) | (0.0260) | (0.0360) | (0.0366) |
1
Genetic correlation was estimated from allele substitution effects from linear regression-based GWAS (upper diagonal) and phenotypic correlation was inferred with filtered observations (lower diagonal). Standard errors are reported in parentheses. Heritability for ejaculate quality traits can found on the diagonals. Heritability for sire nonreturn rate was not calculated (NA), because insemination success was not available on an ejaculate level.
2
Nonsignificant relationship (P > 0.05).