Table 1 Ingredients and proximate composition (g/kg dry diet) of experimental diets with increasing substitution level of fishmeal with mealworm meal.

From: Potential of mealworms used in polyhydroxyalkanoate/bioplastic recovery as red hybrid tilapia (Oreochromis sp.) feed ingredient

Ingredients

Dieta

MwM0

MwM25

MwM50

MwM75

MwM100

Fish mealb

310.01

230.30

156.00

77.00

0.00

Mealworm mealc

0.00

81.20

163.00

244.00

325.00

Soybean meal

200.80

200.80

200.80

200.80

200.80

Fish oil

33.30

32.00

30.50

29.20

27.80

Corn oil

14.00

14.00

14.00

14.00

14.00

Corn starch

245.50

245.50

245.50

245.50

245.50

Vitamin premixd

30.00

30.00

30.00

30.00

30.00

Mineral premixe

20.00

20.00

20.00

20.00

20.00

CMC

20.00

20.00

20.00

20.00

20.00

Dicalcium phosphate

10.00

10.00

10.00

10.00

10.00

Alpha-cellulose

116.60

113.50

110.20

109.50

106.90

Proximate composition

Crude protein

369

375

378

377

386

Crude lipid

87

87

86

87

84

Dry matter

867

874

860

874

869

Moisture

133

126

140

126

131

Ash

93

86

81

72

65

Crude fiber

5

12

19

27

33

Nitrogen free extractf

446

440

436

437

432

  1. CMC carboxymethyl cellulose.
  2. aMwM denotes a mealworm meal. The number following the letters denotes the % of MwM added, for each diet.
  3. bDanish fishmeal purchased from Cargill, Penang, Malaysia (dry matter: 86.9%; crude protein: 79.0%; crude lipid: 8.6%).
  4. cFed with C. necator cells as finishing diet (dry matter: 94.2%; crude protein: 75.47%; crude lipid: 9.9%; ash: 6.8%; fiber: 11.0%).
  5. dVitamin premix (g kg−1 of premix): inositol, 5; ascorbic acid, 45; choline chloride, 75; niacin, 4.5; pyridoxine HCl, 1; riboflavin, 1; thiamin mononitrate, 0.92; cholecalciferol, 0.083; calcium d-panthothenate, 3; retinyl acetate, 0.6; dl-α-tocopheryl acetate (500 IU g−1), 8; menadione sodium bisulfide, 1.67; d-biotin, 0.02; folic acid, 0.09; cellulose, 845.11; vitamin B12, 0.00135.
  6. eMineral premix (g kg−1 of premix): calcium lactate, 327; Ca(H2PO4)2·H2O, 270.98; FeSO4·H2O, 25; KCl, 50; MgSO4·7H2O, 132; NaCl, 60; KI, 0.15; MnO2, 0.8; CuSO4·5H2O, 0.785; CoCO3, 1; ZnO, 3; CaCO3, 129.27; Na2SeO3·5H2O, 0.011.
  7. fNitrogen free extract = 100 − (lipid + crude protein + fiber + ash).