Table 2 Composition (% by mass) of ingredients in Norwegian salmon feed and fossil primary energy demand (PED_fossil) per tonne of ingredient

Wheat

8.9

5733

[37]

Other carbohydrate sources

1.8

5733^a

[37]

Soy protein concentrate

19

9335

[39]

Fish meal

14.5

9979

[37]

Wheat gluten

9

35,280

[39]

Faba beans

4

2779

[38]

Maize gluten

3.4

23,240

[38]

Pea protein concentration

1.3

10,800

[40]

Sunflower meal

1.1

8780

[40]

Sunflower protein

0.5

8780^b

[40]

Other vegetable proteins

2.3

9335^c

[40]

Rapeseed oil

20.1

13,365

[38]

Fish oil

10.4

19,714

[37]

Micronutrients

3.9

32,549

[38]