Table 9.
Heritability and principal component (PC) analyses of serial dual-energy X-ray absorptiometry (DEXA) data from 119 adult cats
| PC1 | PC2 | PC3 | PC4 | PC5 | PC6 | PC7 | |
| Percent of variance | 55.0 | 24.7 | 12.2 | 4.1 | 2.2 | 1.3 | 0.5 |
| Heritability | 0.33* | 0.40 | 0.00 | 0.21 | 0.11 | 0.74 | 0.00 |
| Trait | Loadings | ||||||
| PC1 | PC2 | PC3 | PC4 | PC5 | PC6 | PC7 | |
| Bone density | 0.30 | −0.07 | 0.85 | −0.11 | 0.29 | −0.29 | −0.06 |
| Tissue % fat | 0.33 | 0.54 | −0.08 | −0.48 | −0.21 | 0.06 | −0.57 |
| Body weight | 0.37 | −0.32 | −0.49 | −0.23 | 0.63 | −0.25 | −0.08 |
| Body condition score | 0.38 | 0.41 | −0.01 | 0.64 | 0.36 | 0.39 | −0.03 |
| Lean grams | 0.39 | −0.43 | −0.06 | 0.45 | −0.49 | −0.25 | −0.40 |
| Bone mineral content | 0.41 | −0.40 | 0.09 | −0.30 | −0.17 | 0.70 | 0.23 |
| Fat grams | 0.45 | 0.30 | −0.13 | −0.04 | −0.29 | −0.38 | 0.68 |
*
P=0.038 (suggests statistical significance given the number of traits tested). Bold typescript indicates significantly contributing loadings.