Table 5.
Eigenvalues, percent of cumulative explained variance and loadings of first five principal components of PCA of sperm characteristics assessed with flow cytometry in frozen – thawed African Penguin semen samples.
| PC1 | PC2 | PC3 | PC4 | PC5 | |
|---|---|---|---|---|---|
| Eigenvalue | 2.35 | 1.22 | 0.98 | 0.63 | 0.54 |
| Cumulative variance percentage | 39.17 | 59.48 | 75.89 | 86.46 | 95.40 |
| Loadings | |||||
| Live (%) | -0.6 | 0.41 | -0.10 | -0.55 | 0.33 |
| Apoptotic (%) | -0.53 | 0.35 | 0.68 | 0.26 | -0.16 |
| Damaged acrosome (%) | -0.61 | -0.53 | -0.07 | -0.34 | 0.47 |
| HMMP (%) | -0.47 | -0.67 | -0.32 | -0.30 | -0.34 |
| DFI (%) | -0.72 | -0.16 | 0.57 | -0.05 | -0.16 |
| HDS (%) | -0.73 | -0.42 | 0.29 | 0.25 | -0.20 |
HMMP = High Mitochondrial Membrane Potential, DFI = DNA Fragmentation Index, HDS = High DNA Stainability.