Table 4. Effects of the dietary black soldier fly larvae oil inclusion level on the relative length (cm/kg) of the different sections of the digestive tract, relative weight (g/kg) of the digestive track and internal organs of broiler chickens at 35 d of age1)

Items Dietary treatments SEM p-value
CON 50 BSFLO 100 BSFLO
LW (kg) 1.99 1.98 2.08 0.04 0.229
Intestinal sections
 Duodenum length (cm/kg) 14.32 14.44 13.34 0.55 0.330
 Jejunum length (cm/kg) 33.17 30.50 32.69 0.90 0.107
 Ileum length (cm/kg) 33.56 30.00 32.09 1.14 0.111
 Duodenum weight (g/kg) 6.63 6.26 6.27 0.30 0.628
 Jejunum weight (g/kg) 10.91 10.41 10.41 0.45 0.665
 Ileum weight (g/kg) 7.61 8.16 7.68 0.33 0.456
Internal organs
 Gizzard (g/kg) 14.85a 12.52b 13.02b 0.59 0.028
 Liver (g/kg) 21.67 19.94 21.19 0.85 0.349
 Pancreas (g/kg) 2.28 2.20 2.31 0.13 0.849
 Spleen (g/kg) 1.14 0.95 1.09 0.08 0.271
 Bursa of Fabricius (g/kg) 1.80 1.66 1.42 0.29 0.655
Each value is the mean of 11 replicates (11 birds/treatment).
Means with different letters within each variable differ (p < 0.05).
CON, control diet; 50 BSFLO, 50% black soldier fly larvae oil diet; 100 BSFLO, 100% black soldier fly larvae oil diet; SEM, standard error of the mean; LW, live weight.