Publications Using our Technology




Lopes J.C., L.F. de Matos, M.T. Harper, F. Giallongo, J. Oh, D. Gruen, S. Ono, M. Kindermann, S. Duval, A.N. Hristov. 2016.  Effect of 3-nitrooxypropanol on methane and hydrogen emissions, methane isotopic signature, and ruminal fermentation in dairy cows.  J. Dairy Sci. Vol. 99. pp. 5335–5344. View Here

Hristov, A.N, J. Oh, F. Giallongo, T. Frederick, M.T. Harper, H. Weeks, A.F. Branco, W.J. Price, P.J. Moate, M.H. Deighton, S.R.O. Williams, M. Kindermann, S. Duval. 2016. Short communication: Comparison of the GreenFeed system with the sulfur hexafluoride tracer technique for measuring enteric methane emissions from dairy cows.  J. Dairy Sci. Vol 99, pp. 5461–5465.  View Here

Pereira, D., S. Utsumi, C. Dorich, A. Brito. 2015. Integrating spot short-term measurements of carbon emissions and backward dietary energy partition calculations to estimate intake in lactating dairy cows fed ad libitum or restricted.   J. Dairy Sci. Vol. 98, pp. 8913-8925. View Here

Branco, A. F., F. Giallongo, T. Frederick, H. Weeks, J. Oh, A. N. Hristov. 2015. Effect of technical cashew nut shell liquid on rumen methane production and lactation performance of dairy cows. J. Dairy Sci. Vol 98, pp 4030-4040. View Here

Dorich, C.D. R.K. Varner, A.B.D. Pereira, R. Martineau, K.J. Soder, A.F. Brito. 2015.  Short communication: Use of a portable automated open-circuit gas quantification system and the sulfur hexafluoride tracer technique for measuring enteric methane emissions in Holstein cows fed ad libitum or restricted.  J. Dairy Sci. Vol 98, pp 2676-2681.  View Here

Huhtanen, P, E. H. Cabezas-Garcia, S. Utsumi, and S. Zimmerman. 2015. Comparison of methods to determine methane emissions from dairy cows in farm conditions. (in-press). J. Dairy Sci. Vol 98, pp 3394–3409. View Here

Hristov, A.N., K. Oh, F. Giallongoa , T. Fredericka, M. Harpera, H.L. Weeks, A.F. Branco , P.J. Moate, M.C. Deighton, S.R. Williams, M. Kindermannd , and S. Duvale. 2015. An inhibitor persistently decreased enteric methane emission from dairy cows with no negative effect on milk production. PNAS. Vol. 112 , pp 10663-10668. View Here

Hristov, A. N., J.Oh, F. Giallongo , T. Frederick, H. Weeks, P. R. Zimmerman, M.T. Harper, A. Rada. R. Hristova, S. Zimmerman, A. F. Branco. 2015. The Use of an Automated System (GreenFeed) to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals. J. Vis. Exp. (103), e52904. View Here

Gidlund, H, Hetta, M., Krizsan, S.J., Lemosquet, S., Huhtanen, P. 2015. Effects of soybean meal or canola meal on milk production and methane emissions in lactating dairy cows few grass silage-based diets.  J. Diary Sci.  In press.  View Here

Velazco, J.I., D.G. Mayer, S. Zimmerman, R. Hegarty. 2015. Use of short-term breath measures to estimate daily methane production by cattle.  Animals, in press. View Here

Watt, L.J., C.E.F. Clark, G.L. Krebs, C.E. Petzel, S. Nielsen, S.A. Utsumi.  2015. Differential rumination, intake, and enteric methane production of dairy cows in a pasture-based automatic milking system.  J. Dairy Sci. Vol 98, pp 7248-7263. View Here

Cottle, D.J., J. Velazco, Hegarty R.S., Mayer D.G. 2015. Estimating daily methane production in individual cattle with irregular feed intake patterns from short-term methane emission measurements. Animals.  In press. View Here

Hammond K.J., A.K. Jones, D.J. Humphries, L.A. Crompton, C.K. Reynolds. 2016. Effects of diet forage source and neutral detergent fiber content on milk production of dairy cattle and methane emissions determined using GreenFeed and respiration chamber techniques.  J. Dairy Sci. Vol. 99. pp 7904–7917. View Here

Arbre, M., Y. Rochette, J. Guyader, C. Lascoux, L. Miguel Gamez, M. Eugane, D. Morgavi, G. Renand, M. Doreau, C. Martin, 2015. Repeatability of enteric methane determinations from cattle using either the SF6 tracer technique or the GreenFeed system.  Anim. Prod. Sci. Vol. 56. pp 238-243. View Here. FULL ARTICLE HERE.

Caetano, M., M. Wilkes, W. Pitchford., S. Lee, P. Hynd. 2016. Efficacy of methane-reducing supplements in feed cattle rations.  Anim. Prod. Sci. Vol 56. 276-281. View Here.  FULL ARTICLE HERE.

Herd, R., J. Velazco, P. Arthur, R.  Hegarty. 2016. Proxies to adjust methane production rate of beef cattle when the quantity of feed consumed is unknown.  Anim. Prod. Sci. Vol 56. 231-237.  View HereFULL ARTICLE HERE

Niu, M., J.Appuhamy, A.Leytem, R. Dungan, E.Kebreab. 2016. Effect of dietary crude protein and forage contents on enteric methane emissions and nitrogen excretion from dairy cows simultaneously.  Anim. Prod. Sci.  Vol 56. 312-321.  View Here.  FULL ARTICLE HERE.

Renand, G., D. Maupetit. 2016. Assessing individual differences in enteric methane emission among beef heifers using the GreenFeed Emissions Monitoring system: effect of the length of test period on precision.  Anim. Prod. Sci. Vol 56.  View HereFULL ARTICLE HERE.

Waghorn. G., A. Jonker, K. MacDonald. 2016.  Measuring methane from grazing dairy cows using GreenFeed.  Anim. Prod Sci. Vol 56. View Here.  FULL ARTICLE HERE.

Velazco J., H. Robert, C. Cottle, R. Hegarty. Daily methane emissions and emission intensity of grazing beef cattle genetically divergent for residual feed intake. 2016. Anim. Prod. Sci.  View Here.  FULL ARTICLE HERE.


Conference Abstracts

Conway, A.C, J. J. Michal, J. S. Chang, B. Carter, M. E. Benson, T. Bodine, and K. A. Johnson.  2015.  The effect of carbohydrate source in a urea-based liquid supplement on ruminal fermentation and methane production of wintering beef cows fed low-quality forage. J. Dairy Sci. Vol. 98, Suppl. View Here

de Matos, L.F., M.T. Harper, J. Lopes, F. Giallongo, J. Oh, D. Gruen, A.N. Hristov, M. Kindermann, and S. Duval. 2015. Effect of 3-nitrooxypropanol on ruminal fermentation, methane and hydrogen emissions, and methane isotopic composition in dairy cows.  J. Dairy Sci. Vol. 98, E-Suppl. View Here.

Hristov, A.N., J. Oh, F. Giallongo, M.T. Harper, H. Weeks, A.F. Branco, P.J. Moate, M.H. Deighton, S.R.O. Williams, M. Kindermann, and S. Duval. 2015. A novel inhibitor persistently decreased enteric methane emission and increased weight gain of high-producing Holstein cows without negatively affecting milk production.  J. Dairy Sci. Vol. 98, E-Suppl. View Here

Matias J.A, F. Sun, S. Welch, and M.A. Wattiaux. 2015. Effect of a ruminal acidosis challenge on methane emission rate in lactating cows. J. Dairy Sci. Vol. 98, E-Suppl.  View Here

Oh, J., F. Giallongo, T. Frederick1, M.T. Harper, H. Weeks, A.F. Branco, A.N. Hristov, W.J. Price, P.J. Moate, M.H. Deighton, S.Ri. O. Williams, M. Kindermann, and S. Duval. 2015.  J. Dairy Sci. Vol. 98, E-Suppl. View Here

Pereira, A.B.D, A.F. Brito, S.A. Utsumi, B.J. Isenberg, and K.S. O’Connor. 2015. Evaluating carbon and oxygen flux variability and heat production in dairy cows using a portable automated gas quantification system. J. Dairy Sci. Vol. 98, E-Suppl. View Here

Ramin, M, A. Höjer, H. Mårten, and P. Huhtanen. 2015. Effect of heat-treated field beans (Vicia faba) on lactation performance of dairy cows. J. Dairy Sci. Vol. 98, E-Suppl.  View Here

Renand, G. 2016. Assessing precision and accuracy of enteric methane flux measures using GreenFeed systems. Melbourne GreenFeed Workshop 2016. View Here

Shreck A.L., D. N. D. Aluthge, J.S. Jennings, C.S, Fernando, and N.A. Cole. 2015. Effect of protein supplementation to low-quality forage diets on enteric methane production and ruminal microbial community structure of beef steers. J. Dairy Sci. Vol. 98, Suppl.  View Here

Shreck A,L, P.J. Ebert, E.A. Bailey, J.S. Jennings, and N.A Cole. 2015. Effect of altered nitrogen excretion by condensed tannin supplementation on steer energy losses. J. Dairy Sci. Vol. 98, E-Suppl.  View Here

Zimmerman, S., J. Roche, and P. Zimmerman. 2015. Aerodynamic design of a TMR feed bin to measure gaseous emissions from cattle.  J. Dairy Sci. Vol. 98, E-Suppl. View Here




Branco, A. F., F. Gaillong, T. Frederick, H. Weeeks, J. Oh, A.N. Hristov. 2014. Effect of Cashew Nut Shell Liquid on Lactation Performance and Rumen Methane Production in Dairy Cows. J. Dairy Sci. 97 (E-Suppl): 854.  View Here

Hammond, K, A.K. Jones, D. K. Humphries, L.A. Crompton, C.K. Reynolds. 2014. Effects of Forage Source and NDF Concentration on Methane Emissions and Milk Production of Dairy Cows.  J. Dairy Sci. 97 (E-Suppl): 853. View Here

Huhtanen. P, E.H. Cabezas Garcia, S. Zimmerman, P. Zimmerman. 2014 Comparison of active flux and passive concentration measurement of methane emissions from cattle. J. Dairy Sci. 97 (E-Suppl): 275.  View Here

Pereira, A., A. Brito, S. Utsumi. 2014. Estimation of Heat Production and Energy Conversion Efficiency Using Real Time Measurements of Methane and Carbon Dioxide Fluxes in Mid-Lactation Hostien Cows. J. Dairy Sci. 97 (E-Suppl): 746.  View Here

Velazco J.I, D. J. Cottle, R. S. Hegarty. 2014. Methane emissions and feeding behavior of feedlot cattle supplemented with nitrate or urea. Animal Production Science 54:1737-1740. View Here



Hammond, K., D. J. Humphries, L. A. Crompton, P. Kirton, C. Green, and C. K. Reynolds. 2013. Methane (GreenFeed) compared emissions from growing dairy heifers estimated using an automated head chamber to respiration chambers or SF6 techniques. Adv. Anim. Biosci. 4:391. View Here

Huhtanen, P., S. J. Krizsan, M. Hetta, H. Gidlund, and E. H. Cabezas Garcia. 2013. Repeatability and between cow variability of enteric CH4 and total CO2 emissions. Adv. Anim. Biosci. 4:588.  View Here

Michal, J.J., P, S.J. Krizsan, M. Hetta, H. Gidlund, E.H. Cabezas Garcia. 2013. An examination of the ranking of methane emissions from growing beef heifers fed different forage diets over time. Adv. Anim. Biosci. 4:536. View Here

Renand, G., E. Ricard, D. Maupeti, J.C. Thouly. 2013. Variability among individual young beef bulls and heifers in methane emissions. Book of Abstracts of the Annual Meeting of the European Association for European Federation of Animal Science, Nantes, France.  Page 195.  View Here   Presentation Here

Pereira A. B., A. F. Brito, S. Zimmerman, N. Antaya.  2013. Evaluating carbon fluxes variability in late lactation organic Jersey cows using a portable automated gas quantification system during the grazing season.  J. Dairy Sci. 96(E-Suppl. 1): 600.  View Here

Waghorn, G., E. J. Garnet, C. S. Pinares, and S. Zimmerman. 2013. Implementation of GreenFeed for estimating methane in a dairy herd grazing pasture. Adv. Anim. Biosci. 4:436. View Here

Weber, K.L., J.A. Rendon, C. Antwi, A.L. Ven Eenennaam, E. Krebreab. 2013. Methane production is not associated with sire groups or residual feed intake in feedlot Angus cattle. Adv. Anim. Biosci. 4:518.  View Here

Zimmerman, S., A. Brito, P. Huhtanen, K. Johnson, J. Michal, A. Pereira, C. Pineras, S. Utsumi, G. Waghorn, and P. Zimmerman. 2013. Measurement and evaluation of enteric CH4 emissions and variability in production systems. Adv. Anim. Biosci. 4:518. View Here

Velazco, J.L, g. Bremmer, L. Li, K Luijben, R.S. Hegarty, H, P. Perdox. 2013. Short-term emission measurements in beef feedlot cattle to demonstrate enteric methane mitigation from dietary  nitrate. Adv. Anim. Biosci. 4:579.  View Here

Zimmerman. S., J. J. Michal, R. White, K. A. Johnson, A. Guerouali, P. Zimmerman. 2013. Evaluation of a novel system to measure enteric methane emissions from beef cattle on pasture.  J. Dairy Sci. 96(E-Suppl. 1):471.  View Here



DAFF. 2012. Research Project Summaries, Climate Change Research Program. Australian Department of Agriculture, Fisheries and Forestry. Pg 39.  View Here

Nelson, N., K. Steensma, S. Utsumi, D. K. Beede, S. Zimmerman, P. Zimmerman. 2012. Enteric methane emissions by dairy cows grazing temperate pastures.  J. Dairy Sci. 95(Suppl. 2): 584.  View Here



Utsumi S., D. Beede, S. Zimmerman, and P. Zimmerman. 2011. Whole herd enteric methane emission estimates in three contrasting daisy systems. J. Dairy Sci. 94(E-Suppl. 1): 607.  View Here

Waghorn, G, C. Pinares, P. Zimmerman, S. Zimmerman. 2011. Zealand Validation and Field tests test of GreenFeed an automated system for the measurement of methane fluxes from ruminants. Unpublished paper presented at the Sixth International Symposium on Non-CO2  Greenhouse Gases, November 2011, Amsterdam,The Netherlands.

Zimmerman. P., S. Zimmerman, S. Utsumi, D. Beede. 2011.  Development of a user-friendly online system to quantitatively measure metabolic gas fluxes from ruminants.  J. Dairy Sci. 94(E-Suppl. 1):856. View Here