| Cattle selected for lower residual feed intake have reduced daily methane production, RS Hegarty, JP Goopy, RM Herd, B McCorkell Journal of animal science 85 (6), 1479-1486, 2007 | 594 | 2007 |
| Low-methane yield sheep have smaller rumens and shorter rumen retention time JP Goopy, A Donaldson, R Hegarty, PE Vercoe, F Haynes, M Barnett, ... British Journal of Nutrition 111 (4), 578-585, 2014 | 244 | 2014 |
| A review on the role of duckweed in nutrient reclamation and as a source of animal feed JP Goopy, PJ Murray Asian-australasian journal of animal sciences 16 (2), 297-305, 2003 | 110 | 2003 |
| Nutritional and flock management options to reduce methane output and methane per unit product from sheep enterprises RS Hegarty, D Alcock, DL Robinson, JP Goopy, PE Vercoe Animal Production Science 50 (12), 1026-1033, 2010 | 99 | 2010 |
| Methane and nitrous oxide emissions from cattle excreta on an East African grassland DE Pelster, B Gisore, J Goopy, D Korir, JK Koske, MC Rufino, ... Journal of environmental quality 45 (5), 1531-1539, 2016 | 86 | 2016 |
| A new approach for improving emission factors for enteric methane emissions of cattle in smallholder systems of East Africa–Results for Nyando, Western Kenya JP Goopy, AA Onyango, U Dickhoefer, K Butterbach-Bahl Agricultural Systems 161, 72-80, 2018 | 78 | 2018 |
| Validation of a short-term methane measurement using portable static chambers to estimate daily methane production in sheep JP Goopy, R Woodgate, A Donaldson, DL Robinson, RS Hegarty Animal Feed Science and Technology 166, 219-226, 2011 | 77 | 2011 |
| Estimates of repeatability and heritability of methane production in sheep using portable accumulation chambers JP Goopy, DL Robinson, RT Woodgate, AJ Donaldson, VH Oddy, ... Animal Production Science 56 (1), 116-122, 2015 | 54 | 2015 |
| Improved region-specific emission factors for enteric methane emissions from cattle in smallholder mixed crop: livestock systems of Nandi County, Kenya PW Ndung’u, BO Bebe, JO Ondiek, K Butterbach-Bahl, L Merbold, ... Animal Production Science 59 (6), 1136-1146, 2018 | 52 | 2018 |
| Excessive heat load index for feedlot cattle JG Gaughan, J Goopy, J Spark Sydney: MLA, 2002 | 51 | 2002 |
| Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle JP Goopy, D Korir, D Pelster, AIM Ali, SE Wassie, E Schlecht, ... British Journal of Nutrition 123 (11), 1239-1246, 2020 | 46 | 2020 |
| 1200 high-quality metagenome-assembled genomes from the rumen of African cattle and their relevance in the context of sub-optimal feeding T Wilkinson, D Korir, M Ogugo, RD Stewart, M Watson, E Paxton, J Goopy, ... Genome biology 21, 1-25, 2020 | 42 | 2020 |
| A comparison of methodologies for measuring methane emissions from ruminants JP Goopy, C Chang, N Tomkins Methods for measuring greenhouse gas balances and evaluating mitigation …, 2016 | 40 | 2016 |
| Repeatability, animal and sire variation in 1-hr methane emissions and relationships with rumen volatile fatty acid concentrations DL Robinson, JP Goopy, RS Hegarty, PE Vercoe Proceedings of the 9th Word Congress on Genetics Applied to Livestock …, 2010 | 40 | 2010 |
| Sire and liveweight affect feed intake and methane emissions of sheep confined in respiration chambers DL Robinson, JP Goopy, AJ Donaldson, RT Woodgate, VH Oddy, ... Animal 8 (12), 1935-1944, 2014 | 38 | 2014 |
| Repeatability of methane production in cattle fed concentrate and forage diets JP Goopy, RS Hegarty Journal of Animal and Feed Sciences 13, 75-78, 2004 | 35 | 2004 |
| Genetic and environmental variation in methane emissions of sheep at pasture DL Robinson, JP Goopy, RS Hegarty, VH Oddy, AN Thompson, ... Journal of Animal Science 92 (10), 4349-4363, 2014 | 34 | 2014 |
| Can rumen methane production be predicted from volatile fatty acid concentrations? DL Robinson, J Goopy, RS Hegarty Animal Production Science 50 (6), 630-636, 2010 | 34 | 2010 |
| Simple and robust algorithms to estimate liveweight in African smallholder cattle JP Goopy, DE Pelster, A Onyango, K Marshall, M Lukuyu Animal Production Science 58 (9), 1758-1765, 2017 | 32 | 2017 |
| Comparison of repeated measurements of methane production in sheep over 5 years and a range of measurement protocols DL Robinson, JP Goopy, RS Hegarty, VH Oddy Journal of Animal Science 93 (10), 4637-4650, 2015 | 31 | 2015 |
Butterbach-BahlHead of Division, IMK-IFU; Principal Scientist, International Livestock Research InstituteVerified email at kit.edu
