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 | 8400 | 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 | 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 | 100 | 1650 | 3011 [36] | 160.9 | 333.7 | 60 | 60c | 6.5 | 7 [76] | ||
Africa | Ethiopia | 275 | 354.75d | 100 | 50 [77] | 475 | 107.3 | 147.2 | 60 | 60c | 6.5 | 8e | |
S. Asia | India | 275 | 100 | 70 [77] | 900 | 135.4 | 160.2 | 55 | 55c | 6.5 | 8e |