Table 1 Formulation and proximate composition of experimental diets (g kg−1 dry weight)
Ingredients | Experimental diets | ||||
|---|---|---|---|---|---|
PO 0 | PO 25 | PO 50 | PO 75 | PO 100 | |
Fish meal* | 60 | 60 | 60 | 60 | 60 |
Soybean meal* | 300 | 300 | 300 | 300 | 300 |
Wheat meal* | 225 | 225 | 225 | 225 | 225 |
Rapeseed meal* | 300 | 300 | 300 | 300 | 300 |
Fish oil* | 60 | 45 | 30 | 15 | 0 |
Palm oil* | 0 | 15 | 30 | 45 | 60 |
Soybean phospholipid* | 25 | 25 | 25 | 25 | 25 |
Mineral mix** | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
Vitamin mix*** | 4 | 4 | 4 | 4 | 4 |
Ca(H2PO4) | 15 | 15 | 15 | 15 | 15 |
Choline chloride | 5 | 5 | 5 | 5 | 5 |
Inositol | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Proximate composition | |||||
Moisture (g/kg) | 103 | 105.3 | 108.2 | 107 | 105 |
Crude protein (dry mass) | 331.8 | 331.5 | 330.9 | 332.3 | 331.7 |
Lipid (g/kg)(dry mass) | 98.2 | 98.1 | 98.7 | 98.8 | 98.5 |
Ash (g/kg)(dry mass) | 52.5 | 56 | 55.3 | 54 | 55 |