LCA Food 2012 in Saint Malo, France! - Manifestations et colloques ...

GROUP 1, SESSION A: ANIMAL PRODUCTION SYSTEMS 8 th Int. Conference on LCA in the
Agri-Food Sector, 1-4 Oct 2012
Table 1. Environmental impact of milk on dairy farms
656
Plain
> 30% maize
Plain
10-30%
maize
Production system
Plain
< 10% maize
Mountain
maize
Mountain
grass
Number of farms 37 36 50 26 59
Gross carbon
footprint
kg CO2eq/ kg
milk
Net carbon footprint
kg CO2eq / kg
milk
Acidification
kg SO2eq / kg
milk
Eutrophication
kg PO4eq / kg
milk
Energy consumption
MJ / kg milk
Average
1.06
0.8-1,3
1.0
0.7-1.3
0.007
0.005-0.009
0.006
0.003-0.011
2.5
1.8-3.8
Average
1.1
0.8-1.4
0.8
0.6-1.4
0.007
0.005-0.011
0.004
0.002-0.009
2.2
1.2-3.3
Table 2. Environmental impact of meat on beef farms
Calf-to-weanling system
producing weaners (9-10
months old)
Average
1.1
0.7-1.4
0.7
0.4-1.1
0.009
0.005-0.012
0.003
0.001-0.010
2.4
1.2-3.9
Production system
Average
1.1
0.8-1.5
0.9
0.6-1.3
0.008
0.005-0.013
0.005
0.002-0.010
2.6
1.7-3.8
Calf-to-beef system producing
beef steers (> 30 months old)
Average
1.2
0.9–1.5
0.7
0.1-1.0
0.010
0.006-0.013
0.004
0.002-0.008
2.7
1.8-4.0
Calf-to-beef system producing
young bulls (17
months old)
Number of farms 163 13 72
Gross carbon
footprint
kg CO2eq / kg
meat
Net carbon footprint
kg CO2eq / kg
meat
Acidification
kg SO2eq / kg
meat
Eutrophication
kg PO4eq / kg
meat
Energy consumption
MJ / kg meat
Average
14.7
10.9-25.4
7.7
0.3-17.3
0.120
0.078-0.217
0.039
0.019-0.113
20.4
5.6-35.6
Average
13.2
9.5-18.8
5.9
3.8-8.5
0.109
0.069-0.156
0.028
0.016-0.048
21.0
10.8-38.7
Average
13.5
8.7-18.4
9.9
5.6-15.0
0.115
0.062-0.194
0.052
0.021-0.130
20.6
6.9-34.1