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Table 4 Summarised performance results of the starter, grower, and finisher period as well as the overall broiler trial (n = 6)

From: Suitability of Hermetia illucens larvae meal and fat in broiler diets: effects on animal performance, apparent ileal digestibility, gut histology, and microbial metabolites

 Items Protein × Fat SE P-value Protein (LSMean) SE P-value Fat (LSMean) SE P-value
S + 0 L S + 50 L S + 100 L L + 0 L L + 50 L L + 100 L S L 0 L 50 L 100 L
Starter period, d 1–14
 Body weight, g 559Z 552YZ 539BY 564 553 564A 5.6 0.028 550 561 4.2 0.008 562u 553uv 551v 4.569 0.076
 ADFI, g/bird 40 40 39 40 39 40 0.47 0.0041 39 39 0.35 0.693 40 40 39 0.388 0.379
 ADG, g 37 36 35B 37 36 37A 0.41 0.030 36 37 0.30 0.009 37 36 36 0.332 0.0911
 FCR, g/g 1.079Y 1.106AZ 1.094YZ 1.077 1.067B 1.076 0.007 0.011 1.093 1.074 0.005 < 0.001 1.078 1.087 1.085 0.006 0.298
Grower period, d 15–28
 Body weight, g 2047 2059 1987 2047 2024 2041 24.6 0.188 2031 2037 15.28 0.756 2047 2041 2014 18.05 0.345
 ADFI, g/bird 133 133 130 135 134 136 1.46 0.146 132 135 0.85 0.041 134 134 133 1.044 0.759
 ADG, g 106 108 103 106 105 105 1.6 0.361 106 105 0.93 0.794 106 106 104 1.126 0.442
 FCR, g/g 1.254 1.243 1.256 1.274 1.272 1.289 0.01 0.884 1.251 1.278 0.007 0.015 1.264 1.257 1.273 0.009 0.503
Finisher period, d 29–35
 Body weight, g 2975 2908 2888 3039 2934 2982 53.8 0.744 2924 2985 39.81 0.103 3007 2921 2935 43.73 0.136
 ADFI, g/bird 175 178 174 183 184 183 3.88 0.774 175 183 3.32 < 0.001 179 181 179 3.470 0.649
 ADG, g 133 121 129 141 130 134 7.6 0.938 128 135 6.32 0.072 137 126 132 6.662 0.103
 FCR, g/g 1.319 1.503 1.364 1.293 1.492 1.377 0.09 0.968 1.396 1.387 0.06 0.894 1.306v 1.498u 1.371uv 0.071 0.052
Overall period, d 1–35
 ADG, g 84 82 81 86 83 84 1.5 0.741 82 84 1.13 0.102 85 82 83 1.246 0.137
 ADFI, g 104 105 102 106 107 107 1.23 0.168 104 107 0.841 0.005 105 106 105 0.954 0.460
 FCR, g/g 1.244 1.289 1.256 1.242 1.296 1.278 0.02 0.815 1.263 1.272 0.01 0.572 1.243v 1.293u 1.267uv 0.016 0.052
  1. S, soybean meal; L, 15% of SBM crude protein substituted with HI larvae meal CP; S + 0 L, SBM + 0 HI larvae fat; S + 50 L, SBM + 50% HI larvae fat; S + 100 L, SBM+ 100% HI larvae fat; L + 0 L, HI larvae meal+ 0 HI larvae fat; L + 50 L, HI larvae meal+ 50% HI larvae fat; L + 100 L, HI larvae meal+ 100% HI larvae fat, ADFI Average daily feed intake, ADG Average daily gain, FCR Feed conversion ratio
  2. A,B Protein sources at the same HI larvae fat inclusion level differ if having different superscripts (P < 0.05)
  3. Y,Z HI larvae fat level within soybean feeding not sharing a common superscript differ (P < 0.05)
  4. u,v indicate differences by trend (0.05 ≤ P ≤ 0.10) for the main effect of fat source
  5. 1 post hoc test Tukey P > 0.10
  6. SE Standard error