Table 5.
Chemical composition of the three experimental diets: fishmeal diet, enzyme hydrolysed mealworm diet and enzyme hydrolysed superworm diet
| Ingredients (g kg−1) | Diets | ||
|---|---|---|---|
| CONa | MWb (42%) | SWc (44%) | |
| Fish meal | 250 | 145 | 140 |
| Mealworm meala | - | 100 | - |
| Superworm mealb | - | - | 100 |
| Soybean meal | 100 | 100 | 100 |
| Wheat flour | 219 | 220 | 226 |
| Corn gluten | 150 | 150 | 150 |
| Blood meal | 70 | 100 | 100 |
| Brewer yeast | 35 | 35 | 35 |
| Fish oil | 164 | 143 | 140 |
| Dicalcium phosphate | 7.2 | 0.8 | 2.1 |
| Premixc | 1.5 | 1.5 | 1.5 |
| DL-Methionine | 1.2 | 2.2 | 2.4 |
| L-Lysine HCL | 1.1 | 1.8 | 2.0 |
| L-Threonine | 0.6 | 0.6 | 0.7 |
| Proximate analysis (% DM) | |||
| Dry matter | 93.0 | 93.7 | 93.5 |
| Crude protein | 48.0 | 51.1 | 49.8 |
| Crude lipid | 16.3 | 14.6 | 15.3 |
| Ash | 6.5 | 5.4 | 5.1 |
| Crude fibre | 1.7 | 1.7 | 1.7 |
| Chitind | 0 | 9.3 | 4.8 |
| NFEe | 35.0 | 33.8 | 35.0 |
| Gross energy (MJ kg−1) | 22.18 | 22.77 | 22.55 |
Fishmeal diet (CON)
Enzyme hydrolysed mealworm diet (MW)
Enzyme hydrolysed superworm diet (SW)
aMealworm meal (dry matter: 95.58%, crude protein: 47.0%, crude lipid: 29.6%)
bSuperworm meal (dry matter: 96.32%, crude protein: 49.3%, crude lipid: 33.6%)
cPolfamix BASF Poland Ltd. (Kutno, Poland) (g kg−1): vitamin A, 1 000 000 IU; vitamin D3, 200 000 IU; vitamin E, 1.5 g; vitamin K, 0.2 g; vitamin B1, 0.05 g; vitamin B2, 0.4 g; vitamin B12, 0.001 g; nicotinic acid, 2.5 g; D-calcium pantothenate, 1.0 g; choline chloride, 7.5 g; folic acid, 0.1 g; methionine, 150.0 g; lysine, 150.0 g; Fe, 2.5 g; Mn, 6.5 g; Cu, 0.8 g; Co, 0.04 g; Zn, 4.0 g; J, 0.008 g; carrier > 1000.0 g
dCalculated based on chitin content of insect meals
eNitrogen-free extract = 1,000 – (crude protein + ether extract + crude fibre + ash)