Table 3.1 Feed intake and apparent digestibility of growing camel calves fed different concentrate levels in the diet, along with ad lib alfalfa hay at different ages (the main effects)

Concentrate

2991

3098

3200

174.4

2387^b

3292^a

3609^a

174.4

P > 0.05

P < 0.05

P > 0.05

Roughage

3965^a

2893^b

2646^b

175.8

3674^a

2764^b

3065^b

175.8

P < 0.05

P < 0.05

P > 0.05

Total

6955^a

5990^b

5845^b

268.7

6061

6056

6674

268.7

P < 0.05

P > 0.05

P > 0.05

Organic matter intake, g/ day

6258^a

5385^b

5306^b

342.1

5471

5460

6019

342.1

P < 0.05

P > 0.05

P > 0.05

Crude protein intake, g/ day

990^a

865^b

848^b

54.8

857

879

968

54.8

P < 0.05

P > 0.05

P > 0.05

Neutral detergent fiber, g/ day

2963^a

2507^b

2431^b

160.3

2601

2521

2779

160.3

P < 0.05

P > 0.05

P > 0.05

Dry matter intake, g/ kg BW^0.75

Concentrate

37.3

36.9

36.4

1.82

29.8^b

39.0^a

41.9^a

1.82

P > 0.05

P < 0.05

P > 0.05

Roughage

50.0^a

34.9^b

30.4^b

2.14

46.6^a

33.1^b

35.6^b

2.14

P < 0.05

P < 0.05

P > 0.05

Total

87.3^a

71.9^b

66.8^b

2.88

76.3

72.1

77.5

2.88

P < 0.05

P > 0.05

P > 0.05

Concentrate/ roughage ratio

Concentrate, %

43.1^b

51.8^a

54.6^a

1.71

40.0^b

54.9^a

54.6^a

1.71

P < 0.05

P < 0.05

P > 0.05

Roughage, %

56.9^a

48.1^b

45.3^b

1.73

59.9^a

45.0^b

45.4^b

1.73

P < 0.05

P < 0.05

P > 0.05

Apparent nutrient digestibility, g/kg

Dry matter

695

706

708

0.48

715^a

704^a

689^b

0.48

P > 0.05

P < 0.05

P > 0.05

Organic matter

737

730

738

0.52

744^a

740^a

721^b

0.52

P > 0.05

P < 0.05

P > 0.05

Energy

70.9

71.3

72.4

0.76

72.6^a

71.7^ab

70.4^b

0.76

P > 0.05

P < 0.05

P > 0.05

Crude protein

682

710

719

1.82

713

709

689

1.82

P > 0.05

P > 0.05

P > 0.05

Neutral detergent fiber

596^a

539^b

540^b

0.75

589^a

562^b

524^c

0.75

P < 0.05

P < 0.05

P > 0.05