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Table 2 Ingredients and proximate composition of experimental diets

From: Tuna by-product meal as a dietary protein source replacing fishmeal in juvenile Korean rockfish Sebastes schlegeli

 

Diets

Con

TBM25

TBM50

TBM75

TBM100

Ingredients (%)

 Brown fishmeala

64.8

48.6

32.4

16.2

 

 Tuna by-product meal

 

19.3

38.7

58.1

77.5

 Squid liver oil

4.6

4.1

3.6

3

2.5

 α-Cellulose

10.6

8

5.3

2.7

 

 Wheat flour

18

18

18

18

18

 Vitamin premixb

1

1

1

1

1

 Mineral premixc

1

1

1

1

1

Proximate composition (%, DM)

 Crude protein

52.7

52.6

52.6

52.6

52.6

 Crude lipid

9.9

10.1

10.5

10.3

10.6

 Ash

10.3

11.7

13.9

15.4

17.1

 Gross energy (cal/g diet)

4949

4918

4852

4876

4830

 Feed price (won/kg feed, DM)d

1903

1789

1674

1558

1443

  1. aProduced from Chile
  2. bThe vitamin premix contained the following ingredients diluted in cellulose (g/kg premix): L-ascorbic acid, 121.2; myo-inositol, 181.8; DL-α-tocopheryl acetate, 18.9; niacin, 36.4; p-aminobenzoic acid, 18.2; Ca-D-pantothenate, 12.7; riboflavin, 9.1; thiamin hydrochloride, 2.7; pyridoxine hydrochloride, 1.8; menadione, 1.8; retinyl acetate, 0.73; folic acid, 0.68; D-biotin, .27; cholecalciferol, 0.003
  3. cThe mineral premix contained the following ingredients diluted in dextrin (g/kg premix): NaCl, 30.3; MgSO4·7H2O, 95.6; NaH2PO4·2H2O, 60.8; KH2PO4, 167.3; CaH4(PO4)2·H2O, 94.7; Ferric citrate, 20.7; ZnSO4·7H2O, 15.3; Ca-lactate, 212.8; CuCl, 0.14; AlCl3·6H2O, 0.105; KI, 0.105; Na2Se2O3, 0.01; MnSO4·H2O, 1.4; CoCl2·6H2O, 0.7
  4. dPrice in Korean won; one US$ = 1060 won, based on 2018 exchange prices. The same labor and processing costs are included
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Fisheries and Aquatic Sciences

ISSN: 2234-1757

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