Table 5 Proximate chemical composition and nutrient profile of dietary by-products.

From: Enriching laying hens eggs by feeding diets with different fatty acid composition and antioxidants

Specification

Rapeseed meal

Grapeseed meal

Flaxseed meal

Sea Buckthorn meal

Proximate analysis of nutrients (% DM)

Dry matter

89.25

89.91

90.86

89.36

Crude protein

33.56

13.10

31.38

11.44

Ether extract

15.07

6.44

13.14

8.92

Crude fibre

10.10

35.16

11.26

23.26

Fatty acid content (% of total fat)

Palmitic (C16:0)

11.92

9.68

7.70

21.56

Stearic (C18:0)

2.73

3.56

3.07

1.80

Oleic (18:1)

41.06

21.04

18.54

30.70

Linolenic (C18:3n3)

4.42

1.33

42.93

4.84

Total SFA

16.83

13.48

11.07

23.69

Total MUFA

42.90

21.34

18.71

45.39

Total PUFA

40.26

64.71

70.23

30.44

n-6 PUFA

35.85

63.23

27.30

25.40

n-3 PUFA

4.42

1.47

42.93

5.04

n-6/n-3 ratio

8.12

42.91

0.64

5.04

Antioxidant compounds

Polyphenols (mg GAE/g)

7.95

90.42

15.33

90.72

Antioxidant capacity (mM Trolox/g)

24.57

496.0

19.87

118.50

Flavonoids (μg rutin/g) sample (μg RE/g)

4.51

100.08

1.35

120.01

  1. PUFA polyunsaturated fatty acids, DM dry matter.