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.

From: Long-term access to live black soldier fly larvae (Hermetia illucens) stimulates activity and reduces fearfulness of broilers, without affecting health

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