|
Region
|
Based on
|
Average animal body mass (kg, lactating cows only)
|
% Stall fed animals
|
Average milk production (kg/head/year)
|
Gross energy intake
|
Digestibility of feed (%)
|
Ym (%)
|
|---|
|
IPCC 2006a
|
This study
|
IPCC 2006a
|
This study
|
IPCC 2006a
|
This study
|
IPCC 2006a
|
This studya,b
|
IPCC 2006a
|
This study
|
IPCC 2006a
|
This study
|
|---|
|
US and Canada
|
US
|
600
|
680 [12]
|
100
|
93 [12, 39]
|
8400
|
9732 [12, 39]
|
301.7
|
403.2
|
75
|
66.7 [12]
|
6.5
|
6 [70]
|
|
W. Europe
|
EU-15
|
600
|
624 [71]
|
100
|
77 [70]
|
6000
|
6935 [71]
|
275.4
|
304.9
|
70
|
70.2 [70]
|
6.5
|
6.53 [70]
|
|
E. Eur.–Ctrl. Asia
|
Russian Fed.
|
550
|
572 [4, 71]
|
100
|
80 [70]
|
2550
|
3898 [70]
|
232.5
|
233.9
|
60
|
68.6 [70]
|
6.5
|
6 [70]
|
|
Oceania
|
Australia
|
500
|
565 [70]
|
0
|
7 [70]
|
2190
|
5789 [70]
|
234.6
|
253
|
60
|
76.1 [70]
|
6.5
|
7.24 [70]
|
|
Latin America
|
Brazil
|
400
|
458 [72]
|
0
|
2 [73]
|
800
|
1208 [74]
|
179.3
|
207.1
|
60
|
60c
|
6.5
|
8 [74]
|
|
E.-S.E. Asia
|
China
|
350
|
500 [59, 75]
|
100
|
100 [58, 59, 76]
|
1650
|
3011 [36]
|
160.9
|
333.7
|
60
|
60c
|
6.5
|
7 [76]
|
|
Africa
|
Ethiopia
|
275
|
354.75d
|
100
|
50 [77]
|
475
|
687.2 [36, 77]
|
107.3
|
147.2
|
60
|
60c
|
6.5
|
8e
|
|
S. Asia
|
India
|
275
|
281 [78, 79]
|
100
|
70 [77]
|
900
|
1355.2 [36, 77]
|
135.4
|
160.2
|
55
|
55c
|
6.5
|
8e
|
- Only lactating dairy cows are included in the dairy cow category. Reported values that included dairy calves, heifers, dry cows, and/or replacements were not used or were adjusted to reflect producing dairy cow populations
-
aCalculated using information in supplemental tables in Chapter 10 of IPCC 2006 [4]
-
bNet energy for growth and wool production are assumed to be zero for mature dairy cows
-
cUnchanged from information in supplemental tables in Chapter 10 of IPCC 2006 [4] due to lack of newer information
-
dBased on average increases found for Latin America and E.-S.E. Asia, due to lack of information
-
eAs reported for Latin America, due to lack of information
