
%0 Journal Article
%A Klevenhusen, F. 
%A Bernasconi, S. M. 
%A Kreuzer, M. 
%A Soliva, C. R. 
%T <i>Corrigendum to</i>: Experimental validation of the Intergovernmental Panel on Climate Change default values for ruminant-derived methane and its carbon-isotope signature
%J Animal Production Science
%D 2011/10/11
%V 51
%N 10
%P 974-974
%K C3- and C4-plants, dairy cow, slurry, stable isotope.
%R https://doi.org/10.1071/AN09112_CO
%U https://www.publish.csiro.au/paper/AN09112_CO 
%X 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. 
