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Table 2 Nutritional value according to the INRA system and the proximate chemical composition of the feedstuffs used in the diets of lactating cows

From: Adaptability of Polish Red cows to extensive conditions

Feedstuff

Dry matter (%)

Content of nutrients in kg dry matter

UFL

PDIN (g/kg)

PDIE (g/kg)

FUC

Crude protein (%)

Crude fat (%)

Crude

Fibre

(%)

Crude ash (%)

EXT

Wheat straw

93.85

0.42

38

44

1.60

6.06

2.07

31.2

3.71

Rye straw

93.25

0.42

39

44

1.60

6.19

1.47

37.9

3.30

Cereal blend straw

94.32

0.42

33

44

1.60

5.25

1.93

43.0

3.85

Meadow hay (2nd cut)

93.36

0.70

44

67

1.10

7.00

1.23

29.9

4.08

TRAD

Meadow hay (1st cut)

92.73

0.77

78

84

1.00

12.62

1.53

28.5

4.47

Haylage

from permanent grassland (1st cut)

62.84

0.74

83

84

1.10

13.37

1.73

24.3

6.16

Haylage from permanent grassland (2nd cut)

66.08

0.83

78

87

1.00

12.62

2.37

25.4

5.72

  1. Note: UFL - Forage Unit for lactation; PDIN – Protein Digestible in the Small Intestine from Rumen-Degraded Dietary Protein; PDIE – protein truly digestible in the intestine with energy limiting factor for microbial synthesis in the rumen; FUC - fill unit for cows