Table 2 Spearman correlation coefficient and P-value for aggression traits and cortisol variation in group-housed primiparous and multiparous sows
From: Aggression and cortisol levels in three different group housing routines for lactating sows
|  | Primiparous ( n  = 11) | Multiparous ( n  = 32) | ||
|---|---|---|---|---|
Variables analysed | Correlation coefficient | P -value | Correlation coefficient | P -value |
No. of attacks initiated – Cortisol variation while group-housed | −0.82 | 0.004 | 0.06 | 0.79 |
No. of attacks received – Cortisol variation while group-housed | −0.65 | 0.04 | −0.35 | 0.09 |
Scratch score – Cortisol variation while group-housed | −0.37 | 0.30 | 0.12 | 0.58 |
Scratch score – No. of attacks initiated | 0.28 | 0.43 | −0.14 | 0.47 |
Scratch score – No. of attacks received | −0.02 | 0.94 | 0.36 | 0.07 |