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Effect of different exogenous fatty acids on the cytosolic triacylglycerol content in bovine mammary cells (2018)
Journal Article
Vargas-Bello-Pérez, E., Loor, J. J., & Garnsworthy, P. C. (2018). Effect of different exogenous fatty acids on the cytosolic triacylglycerol content in bovine mammary cells. Animal Nutrition, doi:10.1016/j.aninu.2018.09.002

The objective of this study was to determine how cytosolic triacylglycerols (TAG) are stored in mammary cells and whether this depends on the individual chemical configuration of fatty acids (FA). This objective was accomplished by addition of differ... Read More

The environmental costs and benefits of high-yield farming (2018)
Journal Article
Balmford, A., Amano, T., Bartlett, H., Chadwick, D., Collins, A., Edwards, D., …Eisner, R. (2018). The environmental costs and benefits of high-yield farming. Nature Sustainability, 1(9), (477-485). doi:10.1038/s41893-018-0138-5. ISSN 2398-9629

How we manage farming and food systems to meet rising demand is pivotal to the future of biodiversity. Extensive field data suggest that impacts on wild populations would be greatly reduced through boosting yields on existing farmland so as to spare... Read More

Symposium review: Uncertainties in enteric methane inventories, measurement techniques, and prediction models (2018)
Journal Article
Hristov, A., Kebreab, E., Niu, M., Oh, J., Bannink, A., Bayat, A., …Yu, Z. (2018). Symposium review: Uncertainties in enteric methane inventories, measurement techniques, and prediction models. Journal of Dairy Science, 101(7), doi:10.3168/jds.2017-13536. ISSN 0022-0302

Ruminant production systems are important contributors to anthropogenic methane (CH4) emissions, but there are large uncertainties in national and global livestock CH4 inventories. Sources of uncertainty in enteric CH4 emissions include animal invent... Read More

Prediction of enteric methane production, yield and intensity in dairy cattle using an intercontinental database (2018)
Journal Article
Niu, M., Kebreab, E., Hristov, A. N., Oh, J., Arndt, C., Bannink, A., …Yu, Z. (2018). Prediction of enteric methane production, yield and intensity in dairy cattle using an intercontinental database. Global Change Biology, 24(8), doi:10.1111/gcb.14094. ISSN 1354-1013

Enteric methane (CH₄) production from cattle contributes to global greenhouse gas emissions. Measurement of enteric CH₄ is complex, expensive and impractical at large scales; therefore, models are commonly used to predict CH₄ production. However, bui... Read More

Effect of feeding system on enteric methane emissions from individual dairy cows on commercial farms (2018)
Journal Article
Eckert, M., Bell, M., Potterton, S., Craigon, J., Saunders, N., Wilcox, R., …Garnsworthy, P. (2018). Effect of feeding system on enteric methane emissions from individual dairy cows on commercial farms. Land, 7(1), doi:10.3390/land7010026

This study investigated the effects of feeding system on diurnal enteric methane (CH4) emissions from individual cows on commercial farms. Data were obtained from 830 cows across 12 farms, and data collated included production records, CH4 measuremen... Read More

Does the diurnal pattern of enteric methane emissions from dairy cows change over time? (2018)
Journal Article
Bell, M., Craigon, J., Saunders, N., Goodman, J., & Garnsworthy, P. (2018). Does the diurnal pattern of enteric methane emissions from dairy cows change over time?. animal, 12(10), 2065-2070. doi:10.1017/S1751731118000228

Diet manipulation and genetic selection are two important mitigation strategies for reducing enteric methane (CH4) emissions from ruminant livestock. The aim of this study was to assess whether the diurnal pattern of CH4 emissions from individual dai... Read More

Dietary options to reduce the environmental impact of milk production (2016)
Journal Article
Wilkinson, J., & Garnsworthy, P. (2017). Dietary options to reduce the environmental impact of milk production. Journal of Agricultural Science, 155(2), doi:10.1017/S0021859616000757. ISSN 0021-8596

A range of options was explored to test the hypothesis that diets for dairy cows could be formulated to reduce the carbon footprint (CFP) of feed, increase efficiency of conversion of potentially human-edible feed into milk, increase nitrogen use eff... Read More

Quantitative analysis of ruminal bacterial populations involved in lipid metabolism in dairy cows fed different vegetable oils (2016)
Journal Article
Vargas-Bello-Perez, E., Cancino-Padilla, N., Romero, J., & Garnsworthy, P. (2016). Quantitative analysis of ruminal bacterial populations involved in lipid metabolism in dairy cows fed different vegetable oils. animal, 10(11), doi:10.1017/S1751731116000756. ISSN 1751-7311

Vegetable oils are used to increase energy density of dairy cow diets, although they can provoke changes in rumen bacteria populations and have repercussions on the biohydrogenation process. The aim of this study was to evaluate the effect of two sou... Read More

Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock (2015)
Journal Article
Gardiner, T., Coleman, M., Innocenti, F., Tompkins, J., Connor, A., Garnsworthy, P., …Wills, D. (2015). Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock. Measurement, 66, doi:10.1016/j.measurement.2015.02.029. ISSN 1536-6367

Respiration chambers are one of the primary sources of data on methane emissions from livestock. This paper describes the results from a coordinated set of chamber validation experiments which establishes the absolute accuracy of the methane emission... Read More

Variation in enteric methane emissions among cows on commercial dairy farms (2014)
Journal Article
Bell, M. J., Potterton, S., Craigon, J., Saunders, N., Wilcox, R., Hunter, M., …Garnsworthy, P. (2014). Variation in enteric methane emissions among cows on commercial dairy farms. animal, 8(9), doi:10.1017/S1751731114001530. ISSN 1751-7311

Methane (CH4) emissions by dairy cows vary with feed intake and diet composition. Even when fed on the same diet at the same intake, however, variation between cows in CH4 emissions can be substantial. The extent of variation in CH4 emissions among d... Read More

A case study of the carbon footprint of milk from high-performing confinement and grass-based dairy farms (2014)
Journal Article
O'Brien, D., Capper, J., Garnsworthy, P., Grainger, C., & Shalloo, L. (2014). A case study of the carbon footprint of milk from high-performing confinement and grass-based dairy farms. Journal of Dairy Science, 97(3), doi:10.3168/jds.2013-7174. ISSN 0022-0302

Life cycle assessment (LCA) is the preferred methodology to assess carbon footprint per unit of milk. The objective of this case study was to apply a LCA method to compare carbon footprints of high performance confinement and grass-based dairy farms.... Read More

On-farm methane measurements during milking correlate with total methane production by individual dairy cows (2012)
Journal Article
Garnsworthy, P., Craigon, J., Hernandez-Medrano, J., & Saunders, N. (2012). On-farm methane measurements during milking correlate with total methane production by individual dairy cows. Journal of Dairy Science, 95(6), doi:10.3168/jds.2011-4605. ISSN 0022-0302

The objective of this study was to investigate whether measurement of methane emissions by individual dairy cows during milking could provide a useful technique for monitoring on-farm methane emissions. To quantify methane emissions from individual c... Read More

Variation among individual dairy cows in methane measurements made on farm during milking (2012)
Journal Article
Garnsworthy, P., Craigon, J., Hernandez-Medrano, J., & Saunders, N. (2012). Variation among individual dairy cows in methane measurements made on farm during milking. Journal of Dairy Science, 95(6), doi:10.3168/jds.2011-4606. ISSN 0022-0302

The objective of this study was to quantify on-farm variation between and within cows in methane emissions measured during milking, and to determine which factors are related to this variation. Methane emission rate during milking (MERm) was recorded... Read More