Table 3.
Average physiological and behavioural parameters of bulls in the three experimental treatments in stress induction phase. Means within the same row with different superscripts are significantly different. Data presented as means ± SE.
| Treatment | |||||
|---|---|---|---|---|---|
| Parameter | Control treatment (CT) | Tail bend (TB) | Blindfold (BF) | p value | |
| Heart rate frequency | Day 1 | 91.63a ± 1.57 | 68.25b ± 2.72 | 66.85b ± 2.64 | < 0.001 |
| Day 2 | 92.23a ± 2.22 | 67.25b ± 2.80 | 60.15c ± 0.83 | < 0.001 | |
| Day 3 | 87.75a ± 1.34 | 68.00b ± 2.87 | 57.00c ± 0.72 | < 0.001 | |
| Respiratory rate frequency | Day 1 | 31.63a ± 1.49 | 23.88b ± 0.86 | 20.63b ± 0.58 | < 0.001 |
| Day 2 | 31.38a ± 1.46 | 26.25b ± 0.52 | 19.50c ± 0.36 | < 0.001 | |
| Chest chute forcing frequency | 2.83a ± 0.51 | 0.25b ± 0.16 | 0.41b ± 0.14 | < 0.001 | |
| Head move frequency | 2.50a ± 0.28 | 0.33b ± 0.11 | 0.25b ± 0.08 | < 0.001 | |
| Struggling move frequency | 2.00a ± 0.06 | 0.85b ± 0.04 | 0.33c ± 0.02 | < 0.001 | |
| Kicking frequency | Day 2 | 1.63a ± 0.25 | 0.37b ± 0.17 | 0.50b ± 0.25 | < 0.05 |
| Day 3 | 2.50a ± 0.37 | 0.50b ± 0.24 | 0.75b ± 0.22 | < 0.001 | |
| Tail move frequency | 6.80a ± 1.02 | ————————– | 3.29b ± 0.44 | < 0.001 | |