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Study | Initial weight | Diets | Duration | Main krill effects |
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Julshamn, Malde, Bjorvatn, & Krogedal, [25] | 410 g Atlantic salmon | 0, 10, 20, and 30% KM | 84 days | High tolerance to dietary fluoride with 350 mg/kg diet KM |
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Ringø et al. [93] | 105 g Atlantic salmon | 58.9% FM 32% FM+32% KM | 46 days | ↑ Aerobic and facultative aerobic bacteria colonizing the hindgut Dietary KM affected the adherent hindgut microbiota |
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Moren et al. [106] | 412 g Atlantic salmon | 0, 28.1, 30.3, and 34.8%KM | 100 days | ↑ Specific growth rate ↑ Copper |
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Olsen et al. [26] | 500 g Atlantic salmon | 0% KM+60% FM 13.5% KM+48% FM 27% KM+36% FM 40% KM+24% FM 54% KM+12% FM 68% KM+0% FM | 140 days | ↑ Growth performance ↑ Feed conversion rate |
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Yoshitomi, Aoki, Oshima, & Hata, [16] | 5.5 g rainbow trout | 0% KM 7% KM 15% KM 30% KM | 92 days | 30% KM: ↓ Growth ↓ Feed intake ↓ Specific growth rate |
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Suontama, Kiessling, Melle, Waagbø, & Olsen, [27] | 412 g Atlantic salmon | FM Northern krill (15, 30, and 46%) Antarctic krill (28%) Amphipod (35%) | 160 days | ↑ Specific growth rate |
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Yoshitomi, Aoki, Oshima, & Hata, [16] | 5.5 g rainbow trout | 0, 4.5, 8.9, and 17.9% KM | 92 days | Krill protein had a nutritional value equivalent to fish protein |
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Hansen et al. [24] | 550 g Atlantic salmon | High-quality FM Partially deshelled KM (75.2%) Whole KM (68.9%) | 100 days | Whole KM: ↓ Growth ↓ Trypsin activity in the pyloric and mid intestine ↓ Bile acid concentration in the pylorus |
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Hansen et al. [30] | 546 g Atlantic salmon | 0, 12.3, 25.7, 38.3, and 59.8% of partially deshelled KM | 100 days | ↑ Growth performance ↑ Lipid digestibility ↑ Fluoride in faeces ↓ Plasma cholesterol ↓ Body weight |
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Roncarati et al. [21] | 453 g rainbow trout | Control KM (60%) | 60 days | ↑ Body weight and size ↓ Perivisceral fat ↓ Visceral weight indices ↑ Omega-3 fatty acids in fillet |
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Zhang et al. [10] | 61 g rainbow trout | FM Pea protein conc. Potato protein conc. Canola protein conc. Soy protein conc. All diets supplemented with 5% krill products (3.5% KM and 1.5% krill water solubles) | 72 days | Rainbow trout could utilize diets with >95% of the protein from plant protein conc. supplemented with essential amino acids, KM, and the water-soluble fraction of krill as feed attractant, without lowered feed intake or growth |
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Kousoulaki et al. [10] | 132 g Atlantic salmon | Medium FM Low FM Low krill hydrolysate (1.9%) High krill hydrolysate (3.8%) Choline chloride Free amino acid | 42 days | ↑ Feed intake ↑ Growth performance ↑ Appetite-stimulating effects |
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De Santis, Taylor, Martinez-Rubio, Boltana, & Tocher, [44] | Fry and parr Atlantic salmon | Krill oil or soybean lecithin supplying phospholipid at 2.6, 3.2, 3.6, and 4.2% of diet | Until 10 g of weight | ↑ Growth performance No steatosis in the intestine |
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Hatlen et al. [28] | 104 g and 5527 g Atlantic salmon | 0% KM+30% FM 10% KM+20% FM 0% KM+52% FM 7.5% KM+46% FM 15% KM+40% FM | 42 and 91 days | ↑ Growth performance ↑ Feed intake ↓ Fat content |
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Kousoulaki et al. 2018 | 130.3 g Atlantic salmon | Arg Arg+Ala+Pro+Leu+Phe Arg+Ala+Pro+Leu+Phe+nu Arg+Ala+Pro+Leu+Phe+nu+rest FAA as in krill hydrolysate | 83 days | ↑ Feed intake ↑ Growth performance ↓ Liver lipid levels ↑ Appetite-regulating neuropeptide |
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Wei et al. [15] | 102 g rainbow trout | 51% FM KM (8.5, 17.1, 34.2, and57%) | 56 days | ↑ Growth and performance ↑ Muscle pigmentation |
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Jalili et al. [108] | Fry Atlantic salmon | 25% FM 17.6% FM+7.4% KM 26% FM+23% soya 26% FM+0.03 bactocell 26% FM+0.05% sodium butyrate | 84 days | Altered gene expression profile of immune genes in head kidney |
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Mørkøre et al. [52] | 2.3 kg Atlantic salmon | 15% FM+12% FO 12% KM+5% FM+8% FO | 84 days | ↑ Fillet yield ↓ Gaping ↑ Condition factor ↑ Pigmentation ↑ Firmness of the muscle ↑ Liver coloration score ↓ Fat deposition around the heart ↑ Improved gut health ↑ Compact collagen structure |
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