Table 3. Behaviours of STI chicks during reactivity-to-humans tests.
Mann-Whitney U-test | |||||
SL | SS | U value | p | ||
Human-observer test | Active fear Behav | 13.5±3.1 | 10.1±2.5 | 82.5 | 0.78 |
Passive fear Behav | 8.1±2.6 | 4.2±1.2 | 63 | 0.21 | |
Comfort Activities | 26.4±3.7 | 25.4±3.7 | 85.5 | 0.90 | |
Hand-one-home-cage-door test | Active Fear Behav | 36.7±6.2 | 31.0±3.5 | 72.5 | 0.44 |
Passive fear Behav | 18.0±3.4 | 9.1±1.6 | 41 | 0.02 | |
Comfort Activities | 13.3±2.6 | 12.4±1.7 | 84.5 | 0.86 |
Frequencies of behaviours (% mean ± SEM per individual), reflecting a high level (active and passive fear behaviours) or a low level (comfort activities) of fear, emitted by birds during the human-observer test and the hand-on-home-cage-door test. Data were weighted by the total number of behaviours emitted during tests.
SL: STI chicks reared by LTI females; SS: STI chicks reared by STI quail.