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Table 1 Formulation and proximate composition of five experimental diets (% of dry matter basis)

From: Effects of enzymatically hydrolyzed fish by-products in diet of juvenile rainbow trout (Oncorhynchus mykiss)

Ingredients (% in diet) Dietsa
CON TBB12.5 TBB25 TBB37.5 TBB50
Fishmeal 50 43.75 37.50 31.25 25.00
En. H.Bb 0.00 5.82 11.64 17.46 23.27
Blood meal 2.90 2.90 2.90 2.90 2.90
Soybean meal 3.50 3.50 3.50 3.50 3.50
Wheat gluten meal 7.9 7.9 7.9 7.9 7.9
Cornstarch 0.00 0.6 1.18 1.78 2.39
Wheat flour 20.00 20.00 20.00 20.00 20.00
Soybean oil 7.80 7.80 7.80 7.80 7.80
Fish oil 3.37 3.02 2.68 2.33 1.98
Cellulose 0.53 0.71 0.90 1.08 1.26
Vitamin premix 2.00 2.00 2.0 2.00 2.00
Mineral premix 2.00 2.00 2.0 2.00 2.00
Total 100 100 100 100 100
Proximate analysis (% of DM)
 Moisture 4.93 5.72 6.17 7.22 7.30
 Protein 50.22 48.71 48.34 47.95 46.81
 Lipid 13.71 12.75 14.89 14.25 13.61
 Ash 9.79 9.59 9.49 9.11 9.05
  1. TBB12.5 tuna backbone by-products at 12.5% FM replacement (Samhae Company, Gyeongiu, South Korea)
  2. TBB25 tuna backbone by-products at 25% FM replacement (Samhae Company, Gyeongiu, South Korea)
  3. TBB37.5 tuna backbone by-products at 37.5% FM replacement (Samhae Company, Gyeongiu, South Korea)
  4. TBB50 tuna backbone by-products at 50% FM replacement
  5. aCON control diet (the basal diet)
  6. bEn. H.B enzymatic hydrolyzed by-products (Samhae Company, Gyeongiu, South Korea)