TABLE D-3 Sample Excretion Predictionsa Directly from Different Types of Food Production Animals

Animal Type

Fecal N

Urine N

Fecal S

Fecal C

Dairy Cattle

 

Small Frame (e.g. Jersey)

 

Lactating, RHAb = 3050 kg

116

100

23

1739

Lactating, RHA = 6100 kg

164

143

28

2260

Lactating, RHA = 9150 kg

212

186

33

2780

Nonlactating, mature

104

101

24

1726

Heifers, 200 kg BWc

44

38

9

698

Heifers, 375 kg BW

82

98

17

1253

Large Frame (e.g. Holstein)

 

Lactating, RHA = 6100 kg

236

202

39

3232

Lactating, RHA = 9150 kg

277

236

43

3684

Lactating, RHA = 12,200 kg

318

269

48

4136

Non-lactating, mature

114

98

27

1917

Heifers, 200 kg BW

59

53

12

911

Heifers, 375 kg BW

111

133

23

1671

Beef

 

Small Frame (500 kg; 1.3 kg/d)

 

Growing (300 kg)

71

59

10

1118

Growing (350 kg)

76

57

12

1255

Growing (400 kg)

81

52

13

1391

Pregnant heifer

68

37

14

1292

Cow and calf

81

40

15

1503

Large Frame (635 kg; 1.5 kg/d)

 

Growing (380 kg)

85

69

12

1342

Growing (440 kg)

90

65

14

1503

Growing (500 kg)

96

59

16

1665

Pregnant heifer

89

74

16

1547

Cow and calf

106

81

19

1838

Swine

 

Growing (1-5 kg)

2.1

3.4

0.2

17

Growing (5-20 kg)

2.9

6.2

0.31

25.2

Growing (20-120 kg)

10

24.9

1.10

121.7

Bred sow

7.5

25

1.2

126

Lactating sow and piglets

30

113

5.1

360

Boar

8.3

33

1.9

134

Poultry

 

White Egg Layers

 

Growing (avg. for 20 wks)

0.19

0.83

0.039

3.3

Layers

0.36

1.20

0.057

6.7

Brown Egg Layers

 

Growing (avg. for 20 wks)

0.19

0.82

0.032

3.4



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement