Bai, Mei, Velazco, Jose I., Coates, Trevor W., Phillips, Frances A., Flesch, Thomas K., Hill, Julian, Mayer, David G., Tomkins, Nigel W., Hegarty, Roger S., and Chen, Deli (2021) Beef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniques. Atmospheric Measurement Techniques, 14 (5). pp. 3469-3479.

Benu, I., Callaghan, M.J., Tomkins, N., Hepworth, G., Fitzpatrick, L., and Parker, A.J. (2021) The effects of feeding nitrate on the development of methaemoglobinaemia in sedentary Bos indicus cattle. Animal Production Science, 61 (16). pp. 1680-1685.

Kinley, Robert D., Martinez-Fernandez, Gonzalo, Matthews, Melissa K., de Nys, Rocky, Magnusson, Marie, and Tomkins, Nigel W. (2020) Mitigating the carbon footprint and improving productivity of ruminant livestock agriculture using a red seaweed. Journal of Cleaner Production, 259.

Li, Xixi, Norman, Hayley C., Kinley, Robert D., Laurence, Michael, Wilmot, Matt, Bender, Hannah, de Nys, Rocky, and Tomkins, Nigel (2018) Asparagopsis taxiformis decreases enteric methane production from sheep. Animal Production Science, 58 (4). pp. 681-688.

Machado, Lorenna, Tomkins, Nigel, Magnusson, Marie, Midgley, David J., de Nys, Rocky, and Rosewarne, Carly P. (2018) In vitro response of rumen microbiota to the antimethanogenic red acroalga Asparagopsis taxiformis. Microbial Ecology, 75 (3). pp. 811-818.

Tomkins, N., Parker, A.J., Hepworth, G., and Callaghan, M.J. (2018) Nitrate supplementation has marginal effects on enteric methane production from Bos indicus steers fed Flinders grass (Iseilema spp.) hay, but elevates blood methaemoglobin concentrations. Animal Production Science, 58 (2). pp. 262-270.

Benu, I., Fitzpatrick, L.A., Callaghan, M.J., Tomkins, N., and Parker, A.J. (2018) The effect of nitrate supplementation on arterial blood gases, haemoglobin fractions and heart rate in Bos indicus cattle after exercise. Animal Production Science, 58 (9). pp. 1603-1607.

Perry, L.A., Al Jassim, R., Gaughan, J.B., and Tomkins, N.W. (2017) Effect of feeding forage characteristic of wet-or dry-season tropical C4 grass in northern Australia, on methane production, intake and rumen outflow rates in Bos indicus steers. Animal Production Science, 57 (10). pp. 2033-2041.

Kinley, Robert D., Vucko, Matthew J., Machado, Lorenna, and Tomkins, Nigel W. (2016) In vitro evaluation of the antimethanogenic potency and effects on fermentation of individual and combinations of marine macroalgae. American Journal of Plant Sciences, 7 (14). pp. 2038-2054.

Machado, Lorenna, Magnusson, Marie, Paul, Nicholas A., Kinley, Robert, de Nys, Rocky, and Tomkins, Nigel (2016) Identification of bioactives from the red seaweed Asparagopsis taxiformis that promote antimethanogenic activity in vitro. Journal of Applied Phycology, 28 (5). pp. 3117-3126.

Machado, Lorenna, Magnusson, Marie, Paul, Nicholas A., Kinley, Robert, de Nys, Rocky, and Tomkins, Nigel (2016) Dose-response effects of Asparagopsis taxiformis and Oedogonium sp. on in vitro fermentation and methane production. Journal of Applied Phycology, 28 (2). pp. 1443-1452.

Benu, I., Callaghan, M.J., Tomkins, N., Hepworth, G., Fitzpatrick, L.A., and Parker, A.J. (2016) The effect of feeding frequency and dose rate of nitrate supplements on blood haemoglobin fractions in Bos indicus cattle fed Flinders grass (Iseilema spp.) hay. Animal Production Science, 53 (10). pp. 1605-1611.

Kinley, Robert D., de Nys, Rocky, Vucko, Matthew J., Machado, Lorenna, and Tomkins, Nigel W. (2016) The red macroalgae Asparagopsis taxiformis is a potent natural antimethanogenic that reduces methane production during in vitro fermentation with rumen fluid. Animal Production Science, 56 (3). pp. 282-289.

Harrison, Matthew T., McSweeney, Chris, Tomkins, Nigel W., and Eckard, Richard J. (2015) Improving greenhouse gas emissions intensities of subtropical and tropical beef farming systems using Leucaena leucocephala. Agricultural Systems, 136. pp. 138-146.

Tomkins, Nigel W., Denman, Stuart E., Pilajun, Ruangyote, Wanapat, Metha, McSweeney, Chris S., and Elliott, Robert (2015) Manipulating rumen fermentation and methanogenesis using an essential oil and monensin in beef cattle fed a tropical grass hay. Animal Feed Science and Technology, 200. pp. 25-34.

Machado, Lorenna, Kinley, Robert D., Magnusson, Marie, de Nys, Rocky, and Tomkins, Nigel W. (2015) The potential of macroalgae for beef production systems in Northern Australia. Journal of Applied Phycology, 27 (5). pp. 2001-2005.

Callaghan, M.J., Tomkins, N.W., Benu, I., and Parker, A.J. (2014) How feasible is it to replace urea with nitrates to mitigate greenhouse gas emissions from extensively managed beef cattle? Animal Production Science, 54 (9). pp. 1300-1304.

Machado, Lorenna, Magnusson, Marie, Paul, Nicholas A., de Nys, Rocky, and Tomkins, Nigel (2014) Effects of marine and freshwater macroalgae on in vitro total gas and methane production. PLoS ONE, 9 (1). e85289. pp. 1-11.

Dubois, Baptiste, Tomkins, Nigel W., Kinley, Robert D., Bai, Mei, Seymour, Scott, Paul, Nicholas A., and de Nys, Rocky (2013) Effect of tropical algae as additives on rumen in vitro gas production and fermentation characteristics. American Journal of Plant Sciences, 4 (12B). pp. 34-43.