Poster Presentations

0930 - 1040 Tuesday, October 5
Morning Session (3) Measurement of GHG from livestock production
Session Chair: Dr. J. Mark Powell, USDA-ARS US Dairy Forage Research Centre

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Enteric methane emission rates determined by the SF₆ tracer technique: Temporal patterns and averaging times. Keith R. Lassey, C. S. Pinares-Patino, R. J. Martin, G. Molano and A.M.S. McMillan, New Zealand Institute of Water and Atmospheric Research Ltd., Wellington, New Zealand.

Emissions from N₂O, CH₄ and NH₃ from a grass sward grazed by beef heifers in a mobile outdoor system during winter. Eva Salomon and Lena Rodhe, JTI-Swedish Institute of Agricultural and Environmental Engineering, Uppsala, Sweden

The sulphur hexafluoride (SF₆) tracer technique for methane emission estimation: Effect of rumen residence time of SF₆ permeation tubes in red deer. Natasha Swainson, Simone O. Hoskin, Ian M. Brookes and Harry Clark, AgResearch/Massey University, Palmerston North, New Zealand

Variability of collected SF₆ gas concentrations in the breath samples of sheep and cattle: Defining criteria for the systematic exclusion of data when using the SF₆ tracer technique. Natasha Swainson, Simone O. Hoskin, Ian M. Brookes and Harry Clark, AgResearch/Massey University, Palmerston North, New Zealand

Estimates of methane emissions from cattle and sheep and a range of management systems using Open-Path FTIR measurement technology. Frances Phillips, David Griffith, Mei Bai, Travis Naylor and Fiona Jones, Centre for Atmospheric Chemistry, University of Wollongong, Wollongong, New South Wales, Australia

The SF₆ tracer technique for methane emission estimation: The mixing ratio of SF₆ across days of breath sampling. Jose Gere, K. Williams, R. Gratton and Cesar Pinares-Patino, Universidad Nacional del Centro de la Provincia de Buenos Aires, Tandil, Buenos Aires, Argentina

Validation of the SF₆ tracer technique for estimation of methane emissions from sheep using respiration chambers. Cesar Pinares-Patino, K. R. Lassey, R. Martin, M. Fernandez, G. Molano, E. Sandoval and H. Clark, AgResearch Ltd., Grasslands Research Centre, Palmerston North, Manawatu, New Zealand

Validation and further development of different air volume flow measurement methods for livestock buildings. Wolfgang Buescher, B. Diekmann, C. Nannen, E. Rosenthal, P. Lodomez, P. Roesmann and J. Henseler, Bonn University, Agricultural Faculty, Bonn, Germany

Comparison of two methods for measuring methane emissions from beef cattle grazing Rhodes grass dominated pastures. Nigel Tomkins, S. M. McGinn, D. A. Turner and E. Charmley, CSIRO Livestock Industries, Townsville, Queensland, Australia

The SF₆ tracer technique for estimation of methane emissions from cattle, effect of PVC and stainless steel sample collection devices. German Molano, Karen Williams, Jose Gere, Roberto Graton, M. P. Juliarena and Cesar Pinares-Patino, AgResearch, Grasslands Research Centre, Palmerston North, Manawatu, New Zealand

Evaluation of GHG monitoring equipment for a freestall dairy barn. Erin Cortus, Larry D. Jacobson, Brian Hetchler and Albert J. Heber, South Dakota State University, Brookings, SD, USA

Simultaneous emissions and dispersion of the ammonia plume inside and around a dairy farm in Segovia (Spain). Francisco Sanz, Gema Montalvo, Juan Luis Gomez, Carlos Pineiro, Manuel Bigeriego and M. A. José Sanz

Measurement of greenhouse gas emissions from an anaerobic dairy waste lagoon using a backward-Lagrangian Stochastic Model. Richard H. Grant and Matthew T. Boehm, Purdue University, West Lafayette, IN, USA

Effect of release rate of the SF₆ tracer technique on methane and carbon dioxide emission estimates based on ruminal and breath gas samples. Cécile Martin, J. Koolaard, Y. Rochette, H. Clark, J. P. Jouany and C. S. Pinares-Patino, INRA URH Theix, France

Methane production in growing and finishing pigs in southern China. Zhi-you Ji, Xin-di Liao, Zhen Cao, Juan-boo Liang, Yin-bao Wu and Bin Yu, Guangzhou, Guangdong, China

Measurement of bovine enteric methane emission: An on-line recording technique. Guillermo Berra, Ricardo Bualo, Laura Finster and Silvia E. Valtorta, INTA Castelar, Hurlingham, Buenos Aires, Argentina

Validation of regional methane emission estimates using aircraft-based flux measurements. Ray Desjardins, M. Mauder, R. Srinivasan, E. Pattey, D. Worth, X. Verge and D. Worthy, Agriculture and Agri-Food Canada, Ottawa, ON, Canada

Gaseous nitrogen emissions from Australian cattle feedlots. O. T. Denmead, D. Chen, D. Rowell, Z. Loh, D.W.T. Griffith, T. Naylor and M. Bai, University of Melbourne, Parkville, Victoria, Australia

A simple method for pre-calibration storage of SF₆ permeation tubes. M. H. Deighton and B. M. O'Loughlin, Teagasc Dairy Production Research Centre, Fermoy, Co. Cork, Ireland

In vitro measurement of gas production from Mediterranean tree and shrub leaves. Aziza Gasmi-Boubaker, Samia Ben Saed, Rosa Mosquera-Losada and Antonio Rigueiro Rodriguez, High School of Agriculture, Mateur, Tunisia

Methane production and metabolizable energy requirements of Thai native cattle. Kritapon Sommart, N. Tangjitwattanachai, M. Otsuka, S. Udchachon and A. Takenaka, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand

Estimation of methane emission by dairy cows according to NIRS prediction of feces composition. Eric Froidmont, Camille Delfosse, Frédéric Dehareng, Cécile Martin, Virginie Decruyneaere, Nicole Bartiaux-Thill and Pierre Dardenne, Walloon Agricultural Research Centre, Gembloux, Belgium

In vitro rumen methane output of perennial ryegrass samples prepared by freeze drying or thermal drying. Peter Purcell, Martin O'Brien, Tommy Boland and Padraig O'Kiely, Teagasc/University College Dublin, Grassland Science Research Department, Animal and Grassland Research and Innovation Centre, Grange, Dunsany, Co. Meath, Ireland

Greenhouse gas emissions from naturally-ventilated dairy cow barns. Knut-Håkan Jeppsson, Ngwa Martin Ngwabie, Sven Nimmermark and Gösta Gustafsson, Department of Rural Buildings and Animal Husbandry, Swedish University of Agricultural Sciences, Alnarp, Sweden

A new procedure for soil-atmosphere trace gas flux estimation with static chambers. Søren O. Petersen, Asger Roer Pedersen and Kirsten Schelde, Department of Agroecology and Environment, Aarhus University, Tjele, Denmark

Enteric methane emissions from dairy cows fed different proportions of highly digestible grass silage. Mikaela Patel, Rebecca Danielsson, Gunnar Börjesson, Alan D. Iwaasa, Eva Spörndly, Ewa Wredle and Jan Bertilsson, Swedish University of Agricultural Sciences, Department of Animal Nutrition and Management, Uppsala, Sweden

Emissions of ammonia and greenhouse gases from dairy production facilities in Idaho. April Leytem, D. L. Bjorneberg and R. S. Dungan, USDA-ARS, Kimberly, ID, USA

Measuring methane emissions from cattle feedlots using Open-Path Eddy covariance. Jay Ham and Kristen Johnson, Colorado State University, Soil and Crop Sciences, Fort Collins, CO, USA

System for quantitative measurements of methane emission from dairy cattle in Denmark. Anne Louise Frydendahl Hellwing, Peter Lund, Maike Johannes and Torben Hvelplund, Faculty of Agricultural Sciences, Aarhus University, Tjele, Denmark

Spatial and temporal variability of nitrous oxide emissions from an Australian irrigated dairy pasture. Debra Turner, Deli Chen, Robert Edis, Kevin Kelly, Frances Phillips and Yong Li, University of Melbourne, Melbourne, Victoria, Australia

Comparison of prediction of enteric methane production from lactating cows in Pennsylvania. J. D. Ferguson, R. Munson, L. Baker, Z. Wu and Z. Dou, University of Pennsylvania, School of Veterinary Medicine, Kennett Square, PA, USA

Design and construction of modular (and mobile) open-circuit chambers for monitoring gas emissions of large ruminants. N. Peiren, B. Sonck, J. M. Castro, D. De Brabander, V. Fievez and S. De Campeneere, Institute for Agricultural and Fisheries Research, Melle, Belgium

Effects of replacing barley in feedlot diets with increasing levels of glycerol on in vitro methane production. J. A. Stagno, A. V. Chaves, L. M. Hernandez-Calva, K. A. Beauchemin, S. M. McGinn and T. A. McAllister, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada

Can the SF₆ tracer gas technique be used to accurately measure methane production from ruminally cannulated cattle? T. Coates, B. Farr, K. A. Beauchemin and S. M. McGinn, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada

Characterization of daily variation of stable isotope ratio of methane from ruminant. Taisuke Kondo, Keita Yamada, Itoko Nonaka, Osamu Enishi, Kouji Higuchi, Takumi Shinkai and Naohiro Yoshida, Tokyo Institute of Technology, Machida-shi, Tokyo, Japan

Measurement of ammonia fluxes at a cattle feedlot using micrometeorological and spectroscopic techniques. Shelley Pressley, Brian Lamb, Patrick O'Keeffe, Gene Allwine, Jennifer Michal, George Mount and Kris Johnson, Washington State University, Pullman, WA, USA

Nitrous oxide and methane emissions from a large beef feedlot. Jennifer J. Michal, E. Allwine, S. Spogen, S. Pressley, P. O'Keeffe, B. K. Lamb and K. A. Johnson, Washington State University, Pullman, WA, USA

Use of spot samples from ruminant breath to quantify the methane production. Jørgen Madsen Faculty of Life Sciences, University of Copenhagen, Frederiksberg, Denmark

Effect of Brachiaria dyctioneura replacement by the Acacia mangium arborea on its in vitro ruminal fermentation and methane production. L. A. Giraldo, M. J. Ranilla, M. L. Tejido and M. D. Carro, National University of Colombia, Medellin, Antioquia, Colombia

In vitro ruminal fermentation and methane assessment in various forage diets used in milk production in Colombia. L. A. Giraldo, M. J. Ranilla, M. L. Tejido and M. D. Carro, National University of Colombia, Medellin, Antioquia, Colombia

CO₂ emission in Tanzania-grass submitted rotational stoking intensities by goats. Ana Claudia Ruggieri, Nailson Lima Santos, Naomi Cristina Meisler, Victor Costa e Silva, Paulo Eduardo Silva Martins, Newton La Scala, Jr. And Daniel De Bortoli Teixeira, Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil

The effect of dietary alfalfa silage to corn silage ratio on lactating cow performance and methane emission. Claudia Arndt, M. A. Wattiaux, J. M. Powell and M. J. Aguerre, University of Wisconsin, Madison, WI, USA

Nitrous oxide emissions from grassland in animal agriculture production systems in Uruguay. Veronica S. Ciganda, Jorge Sawchik, Alejandra Fontaine and Lucia Berger, Instituto Nacional de Investigacion Agropecuaria, La Estanzuela, Colonia, Uruguay