Accuracy of noninvasive breath methane measurements using Fourier transform infrared methods on individual cows

References 

1. Aguerre M, Wattiaux MA, Powell JM, Broderick GA. Effect of dietary forage to concentrate ratio on lactation performance and methane emission from dairy cows. In: Proceedings of the 4th International Conference on Greenhouse Gases and Animal Agriculture. Banff, AB, Canada. 2010;
2. Capper JL, Cady RA, Bauman DE. The environmental impact of dairy production: 1944 compared with 2007. J. Anim. Sci. 2009;87:2160–2167
   • CrossRef
3. Chagunda MGG, Ross D, Roberts DJ. On the use of a laser methane detector in dairy cows. Comput. Electron. Agric. 2009;68:157–160
4. Ellis JL, Kebreab E, Odongo NE, McBride BW, Okine EK, France J. Prediction of methane production from dairy and beef cattle. J. Dairy Sci. 2007;90:3456–3466
   • Abstract
   • Full Text
   • Full-Text PDF (190 KB)
   • CrossRef
5. Grainger C, Clarke T, McGinn SM, Auldist MJ, Beauchemin KA, Hannah MC, et al. Methane emissions from dairy cows measured using the sulfur hexafluoride (SF₆) tracer and chamber techniques. J. Dairy Sci. 2007;90:2755–2766
   • Abstract
   • Full Text
   • Full-Text PDF (201 KB)
   • CrossRef
6. Hegarty RS, McEwan JC. Genetic opportunities to reduce enteric methane emissions from ruminant livestock. In: Proc. 9th World Congress in Genetics Applied to Livestock Production. Abstract no. 515 in Book of Abstracts. Event Lab, Leipzig, Germany. 2010;
7. IDF (International Dairy Federation). 2010. A common carbon footprint approach for dairy. The IDF guide to standard life cycle assessment methodology for the dairy sector. IDF Bulletin 445. International Dairy Federation, Brussels, Belgium.
8. Johannes M, Hellwing ALF, Lund P, Weisbjerg MR, Hvelplund T. Different physical forms of rapeseed as fat source to reduce enteric methane emission from dairy cows. In: Proceedings of the 4th International Conference on Greenhouse Gases and Animal Agriculture, Banff, AB, Canada.. 2010;
9. Løvendahl P, Bjerring M. Detection of carryover in automated milk sampling equipment. J. Dairy Sci. 2006;89:3645–3652
   • Abstract
   • Full Text
   • Full-Text PDF (163 KB)
   • CrossRef
10. Madsen J, Bjerg BS, Hvelplund T, Weisbjerg MR, Lund P. Methane and carbon dioxide ratio in excreted air for quantification of methane production in ruminants. Livest. Sci. 2010;129:223–227
11. McCourt, A., T. Yan, C. S. Mayne, and M. G. Porter. 2005. Prediction of methane output in beef cattle from indirect respiration calorimetry data. Pages 405–408 in Proc. 2nd Int. Conf. Greenhouse Gases and Anim. Agric. C. R. Soliva, J. Takahashi, and M. Kreuzer, ed. ETH–Centre, Inst. Anim. Sci., Zurich, Switzerland.
12. Pedersen, S., V. Blanes-Vidal, H. Jørgensen, A. Chwalibog, A. Haeussermann, M. J. W. Heetkamp, and A. J. A. Aarnink. 2008. Carbon dioxide production in animal houses: A literature review. Agricultural Engineering International: CGIR Ejournal Manuscript BC 08 008, Vol X.
13. Robinson, D. L., J. P. Goopy, R. S. Hegarty, and P. E. Vercoe. 2010. Repeatability, animal and sire variation in 1-hr methane emissions and relationship with rumen volatile fatty acid concentrations. Abstract no 712 in Proc. 9th World Congress in Genetics Applied to Livestock. Book of Abstracts.
14. SAS Institute. SAS/STAT Software. Cary, NC: Release 9.2. SAS Institute Inc.; 2008;
15. Steinfeld H, Gerber P, Wassenaar T, Castel V, Rosales M, de Haan C. Livestock's Long Shadow: Environmental Issues and Options. Rome, Italy: Food and Agriculture Organization of the United Nations (FAO); 2006;
16. Teye FK, Alkkiomaki E, Simojoki A, Pastell M, Hautala M, Ahokas J. Instrumentation, measurement and performance of three air quality measurement systems for dairy buildings. Appl. Eng. Agric. 2009;25:247–256