Table 2 Tonic immobility (TI) responses of broilers receiving no larvae (Control), or provided with live larvae in different amounts (5 or 10% of the total dietary DM replaced with larvae, A5 and A10 respectively) and provisioning methods (scattered four or seven times a day, S4 and S7 respectively, or in tubes, called TB). Broilers that were not induced in tonic immobility after three attempts, and broilers that did not vocalize or move their heads were excluded from the respective analysis. Data are presented as means. Different letters indicate significant (p < 0.05, Tukey’s HSD correction) differences between treatments. *p < 0.05.
Measure | Control | A5-S4 | A5-S7 | A10-S4 | A10-TB | SEM | F-statistic and df | P |
|---|---|---|---|---|---|---|---|---|
Time in TI (s) | 183.8a | 119.8ab | 95.6b | 168.2ab | 103.0b | 12.0 | F(4,35) = 3.87 | 0.010* |
Latency to vocalize (s) | 33.6 | 25.0 | 36.2 | 47.7 | 14.9 | 5.6 | F(4,33) = 1.04 | 0.400 |
Latency to move head (s) | 54.6 | 24.9 | 17.4 | 20.4 | 21.0 | 4.2 | F(4,28) = 1.15 | 0.356 |