
TY  - JOUR
A1  - Klevenhusen, F. 
A1  - Bernasconi, S. M. 
A1  - Kreuzer, M. 
A1  - Soliva, C. R. 
T1  - <i>Corrigendum to</i>: Experimental validation of the Intergovernmental Panel on Climate Change default values for ruminant-derived methane and its carbon-isotope signature
JF  - Animal Production Science
JO  - Anim. Prod. Sci.
Y1  - 2011
VL  - 51
IS  - 10
SP  - 974
EP  - 974
KW  - C3- and C4-plants, dairy cow, slurry, stable isotope.
UR  - https://doi.org/10.1071/AN09112_CO 
N2  - Two aspects regarding the ruminant's contribution to global methane (CH4) emissions were investigated: (i) testing the accuracy of the Intergovernmental Panel on Climate Change default values for dairy cows fed different diet types and differing slurry storage temperatures; and (ii) providing carbon-isotope (C-isotope) signature data to contribute information on the characteristics of ruminant-derived CH4 as global source. The experimental diets, fed to 18 dairy cows, were separated into forage-only (hay, C3 plant) and forage-concentrate diets (barley, C3 plant; maize, C4 plant). Accumulated slurry was stored at either 14 or 27°C. The hay diet had the highest CH4 conversion rate (Ym 7.9%). Negligible amounts of CH4 were emitted from slurries stored at low temperature. No diet effect was found at 27°C (~33 L/kg volatile solids). The isotope ratios of enteric CH4 averaged -67.7&#8240; (C3 plants) and -57.4&#8240; (C4; maize). High temperature slurry storage resulted in different enrichment factors &#949;CO2-CH4 for maize (33.2&#8240;) and hay (35.9&#8240;). Compared with the Intergovernmental Panel on Climate Change default values for Ym and slurry CH4 emission the results gained in the present experiment were higher and lower, respectively. Slurry-derived CH4 was less depleted in 13C than enteric CH4, which decreases the usefulness of this signature for global ruminant-derived CH4. 
ER  -

