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Table 4. Feed formula and proximal composition of experimental diets (SH: shimp hydrolysate) Ingredients (%)

40% FM

25% FM

20% FM + 5% SH

Fish meal

40.00

25.00

20.20

Shrimp hydrolysate

0.00

0.00

5.00

Soy protein concentrate

9.00

21.00

21.00

Corn gluten meal

8.00

8.00

8.00

Wheat flour

30.50

29.80

29.60

Squid liver oil

4.00

5.50

5.50

Soybean oil

4.00

4.00

4.00

Mineral Mix

1.00

1.00

1.00

Vitamin Mix

1.00

1.00

1.00

Starch

2.00

1.50

1.50

Choline chloride

0.50

0.50

0.50

L-Lysine

0.00

0.50

0.50

L-Methionine

0.00

0.20

0.20

Taurine

0.00

0.50

0.50

Di-calcium phosphate

0.00

1.50

1.50

DM (%)

93.27

93.14

92.8

CP (DUMAS) (%)

43.71

44.31

43.7

CF (%)

11.92

12.18

12.81

Ash (%)

7.75

7.37

7.09

Raw energy (Kcal/g)

4.77

4.78

4.76

performances resulting from one feed production batch to another. However, there is one important prerequisite to derive the maximum value of functional hydrolysates: product standardization must be controlled and guaranteed, as it will be the peptide profile of hydrolysate which will drive its performances. Last but not least, the sustainable and increasing conversion of by-products from seafood processing plants into high value and standardized marine ingredients dedicated to the aquafeed industry allows full transparency and traceability in the value chain. Certification processes (BAP, IFFO, etc.) provide further guarantee to the quality of these products. References are available on request

Paul Seguin

Mikael Herault

Kyeong-Jun Lee

Tanatchaporn Utairungsee

Paul Seguin is Sales Director for Asia. Email: pseguin@diana-aqua.com

Proximate composition

Mikael Herault is R&D Performance Measurement Manager. Email: mherault@diana-aqua.com. Both authors are with Diana Aqua-Aquativ, the aquaculture division of Diana, part of Symrise AG group. Dr Kyeong-Jun Lee is professor in the Department of Marine Life Sciences, Jeju National University, South Korea. Email: kjlee@jejunu.ac.kr Dr Tanatchaporn Utairungsee is Manager, Diagnostic Laboratory, Syaqua Siam Co. Ltd, Thailand. Email: tanatchaporn.u@goldcoin-th.com

a) Specific growth rate (%) b

b 2.00

2.10

c

1.94

1.74

1.50

1.00

0.50

0.00

40% FM

25% FM

20% FM + 5% shrimp hydrolysate

b) Feed conversion ratio (FCR) and apparent digestibility coefficients of protein (ADCp) 3.50 91.7

FCR

1.50

86.8

x

93.6 80

2.50 2.00

z a

b

2.08

1.61

60

b 1.52

40

ADCp (%)

3.00

100

y

1.00 20

0.50 0.00

0

40% FM

25% FM

20% FM + 5% shrimp hydrolysate

Figure 4. Specific growth rate, FCR and apparent protein digestibilty in the trial with red seabream Pagrus major fed a low fish meal diet supplemented with squid hydrolysate All these benefits, which are associated with the dietary utilization of functional hydrolysates, offer nutritionists and formulators more solutions and flexibility to establish stable formulations and thus, limit the risk of variations in animal January/February 2018 AQUA Culture Asia Pacific Magazine

35

Volume 14, Number 1 January/February 2018 MCI (P) 011/10/2017 ISBN 1793 -056  
Volume 14, Number 1 January/February 2018 MCI (P) 011/10/2017 ISBN 1793 -056