Table 4.
Behavior of the control pigs in the neutral compartment of the test room 30 min after receiving an intranasal administration of oxytocin or a placebo
| Oxytocin | Placebo | A1 | |
|---|---|---|---|
| Behavior | |||
| Standing alert (% of time) | 13.6 ± 2.0 | 12.8 ± 1.5 | NS |
| Escape attempts (% of pens) | 6.3 | 6.3 | NS |
| Urinating (% of pens) | 50.0 | 68.8 | NS |
| Defecating (freq.) | 4.3 ± 0.3 | 3.9 ± 0.4 | NS |
| Exploring neutral door (% of time) | 7.8 ± 2.0 | 8.0 ± 1.2 | NS |
| Exploring positive door (% of time) | 4.2 ± 0.9 | 5.5 ± 1.3 | NS |
| Exploring negative door (% of time) | 1.8 ± 0.4 | 1.5 ± 0.3 | NS |
| Ear posture | |||
| Ears back (% of time) | 4.8 ± 1.3 | 4.5 ± 1.3 | NS |
| Tail postures | |||
| Tail in curl (% of time) | 98.5 ± 1.0 | 97.9 ± 1.2 | NS |
| Tail wagging (% of time) | 0.6 ± 0.5 | 1.1 ± 0.9 | NS |
| Tail low (% of time) | 0.9 ± 0.8 | 1.0 ± 0.6 | NS |
| Vocalizations (voc.) | |||
| Low-pitched voc. (freq.) | 4.5 ± 1.3 | 2.5 ± 1.2 | NS |
| High-pitched voc. (freq.) | 0.2 ± 0.1 | 0.3 ± 0.2 | NS |
| Barks (% of pens) | 0 | 0 | NS |
1Significance of effect of intranasal administration (A) is indicated: NS P ≥ 0.10