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. 2023 Dec 4;14:153. doi: 10.1186/s40104-023-00949-7

Table 6.

Behavioral observations of state events (% of total hour of observation) in Muscovy ducks fed live BSF and YM larvae provided at 5% of the expected ADFI

Behavior category Behavior Treatment1 (T) Period (P) Week (W) SEM P-value
C BSF YM P1 P2 P3 W1–3 W4–6 T P W T P W P × T W × T W × P
Activity Rest 64.8 61.8 63.6 62.0 64.0 64.2 69.4α 57.9β 1.96 1.96 1.60 0.539 0.679 < 0.001 0.016 0.188 0.410
Stand 7.50a 4.20b 5.16b 5.47B 9.19A 3.24C 4.72β 6.33α 0.425 0.450 0.341 < 0.001 < 0.001 0.001 0.046 0.430 0.010
Walk 2.84a 2.04b 2.93a 3.30A 2.51B 2.06B 2.19β 3.03α 0.231 0.233 0.189 0.007 0.001 0.002 0.247 0.510 0.247
Foraging Eat 3.37b 4.63a 2.90bc 4.12A 3.02B 3.62AB 3.52 3.60 0.322 0.317 0.257 <0.001 0.046 0.839 0.662 0.002 0.021
Drink 2.89b 4.47a 2.54b 3.79A 2.59B 3.34A 3.47 2.95 0.255 0.250 0.202 < 0.001 0.002 0.066 0.881 0.012 0.033
Eat insects - 3.00 3.36 - 3.18 - 4.27α 2.37β 0.372 0.263 0.388 0.493 - < 0.001 - 0.092 0.493
Peck object 2.32 2.68 2.21 2.49 2.15 2.57 2.02β 2.84α 0.281 0.281 0.230 0.495 0.535 0.012 0.292 0.157 0.288
Feather caring Preen 15.2 18.3 16.2 18.7A 12.2B 19.9A 13.2β 20.7α 1.57 1.61 1.31 0.389 <0.001 < 0.001 0.001 0.480 0.210

ADFI Average daily feed intake, SEM Standard error of the mean, C Control, BSF Black soldier fly, YM Yellow mealworm, P1 The hour before insect larva provision, P2 The hour during insect larva provision, P3 The hour after insect larva provision

1Three dietary treatments: C: control, commercial feed; BSF: commercial feed + 5% live BSF larvae; YM: commercial feed + 5% live YM larvae

a–cMeans with lowercase superscript letters denote significant differences among treatments (P < 0.05)

A–CMeans with uppercase superscript letters denote significant differences among periods (P < 0.05)

α,βMeans with Greek alphabet superscript letters denote significant differences between week intervals (P < 0.05)