Loadings^a on the first five factors extracted by principal component analysis, after orthogonal rotation, of variables recorded in barren housed pigs (n = 212) during a back test at 2 weeks of age, a novel environment test at 3 weeks of age and a novel object test at 13 weeks of age, inc

Proportions of total variation explained by each factor are given. aLoadings >0.30 or <−0.30 are indicated in italics, and loadings >0.50 or <−0.50 are also indicated in bold. Loadingsa on the first five factors extracted by principal component analysis, after orthogonal rotation, of variables recorded in barren housed pigs (n = 212) during a back test at 2 weeks of age, a novel environment test at 3 weeks of age and a novel object test at 13 weeks of age, including saliva cortisol variables.