Dr Joseph Olm
Production Animal Clinician
School of Veterinary Science
+61 7 535 15104

Book Chapter
Wijffels, Gene, Sullivan, Megan , Anderson, Stephen , Stockwell, Sally , McCulloch, Russell , Briscoe, Suzie , Olm, Joseph , Cawdell-Smith, Judy and Gaughan, John (2018). Towards breeding for heat tolerance and resilience in beef cattle. Breeding Focus 2018 – Reducing Heat Stress. (pp. 31-40) edited by Susanne Hermesch and Sonja Dominik. Armidale, NSW, Australia: University of New England.
Journal Articles
Wijffels, G., Sullivan, M. L., Stockwell, S., Briscoe, S., Pearson, R., Li, Y., Macs, A. M., Sejian, V., McCulloch, R., Olm, J. C. W., Cawdell-Smith, J. and Gaughan, J. B. (2024). Comparing the responses of grain-fed feedlot cattle under moderate heat load and during subsequent recovery with those of feed-restricted thermoneutral counterparts: blood cells and inflammatory markers. International Journal of Biometeorology, 68 (2), 211-227. doi: 10.1007/s00484-023-02584-3
Wijffels, G., Sullivan, M. L., Stockwell, S., Briscoe, S., Anderson, S. T., Li, Y., de Melo Costa, C. C., McCulloch, R., Olm, J. C. W., Cawdell-Smith, J. and Gaughan, J. B. (2023). Comparing the responses of grain fed feedlot cattle under moderate heat load and during subsequent recovery with those of feed restricted thermoneutral counterparts: metabolic hormones. International Journal of Biometeorology, 67 (5), 1-15. doi: 10.1007/s00484-023-02464-w
Wijffels, Gene, Sullivan, M. L., Stockwell, S., Briscoe, S., Li, Y., McCulloch, R., Olm, J., Cawdell-Smith, J. and Gaughan, J. B. (2022). Comparing the responses of grain fed feedlot cattle under moderate heat load and during subsequent recovery with those of feed restricted thermoneutral counterparts: plasma biochemistry. International Journal of Biometeorology, 66 (11), 2205-2221. doi: 10.1007/s00484-022-02349-4
Sullivan, Megan L., Wijffels, Gene, George, A., Al-Hosni, Yousef A., Olm, Joseph C. W. and Gaughan, John B. (2022). Elliptical and linear relationships with rumen temperature support a homeorhetic trajectory for DMI during recovery of feedlot cattle exposed to moderate heat load. Journal of Animal Science, 100 (5) skac127. doi: 10.1093/jas/skac127
Lees, A. M., Olm, J. C.W., Lees, J. C. and Gaughan, J. B. (2021). Influence of feeding Saccharomyces cerevisiae on the heat load responses of lactating dairy cows during summer. International Journal of Biometeorology, 66 (2), 275-288. doi: 10.1007/s00484-021-02169-y
Lees, A. M., Wijffels, G., McCulloch, R., Stockwell, S., Owen, H., Sullivan, M. L., Olm, J. C. W., Cawdell-Smith, A. J. and Gaughan, J. B. (2020). The influence of heat load on Merino sheep. 3. Cytokine and biochemistry profiles. Animal Production Science, 60 (16), 1940-1948. doi: 10.1071/AN19689
Lees, A. M., Sullivan, M. L., Olm, J. C. W., Cawdell-Smith, A. J. and Gaughan, J. B. (2020). The influence of heat load on Merino sheep. 2. Body temperature, wool surface temperature and respiratory dynamics. Animal Production Science, 60 (16), 1932-1939. doi: 10.1071/AN20268
Lees, A. M., Sullivan, M. L., Olm, J. C. W., Cawdell-Smith, A. J. and Gaughan, J. B. (2020). The influence of heat load on Merino sheep. 1. Growth, performance, behaviour and climate. Animal Production Science, 60 (16), 1925-1931. doi: 10.1071/AN19687
Lees, A. M., Sullivan, M. L., Olm, J. C. W., Cawdell-Smith, A. J. and Gaughan, J. B. (2019). A panting score index for sheep. International Journal of Biometeorology, 63 (7), 973-978. doi: 10.1007/s00484-019-01711-3
Owen, H., Buckle, K., Olm, J., Leitner, M., Pandey, S., Gaughan, J. B., Sullivan, M. L., Lees, A. M. and Gibson, J. S. (2015). Isolation of Nocardia mexicana from focal proliferative tenosynovitis and arthritis in a steer. Australian Veterinary Journal, 93 (5), 170-173. doi: 10.1111/avj.12308
Conference Papers
Wijfells, G., Sullivan, M., Stockwell, S., Briscoe, S., De Melo Costa, C., McCulloch, R., Cawdell-Smith, J., Olm, J., Anderson, S. and Gaughan, J. (2018). A suppressed metabolic endocrine state in growing cattle under high heat load. International Symposium on the Nutrition of Herbivores, Clermont-Ferrand, France, 2-6 September 2018. Cambridge, United Kingdom: Cambridge University Press.
Anderson, S., Steiger, N., Sullivan, M., Stockwell, S., McCulloch, R., Biscoe, S., Cawdell-Smith, J., Olm, J., Gaughan, J. and Wijffels, G. (2018). Bone metabolism in growing cattle under severe heat stress. International Symposium on the Nutrition of Herbivores, Clermont-Ferrand, France, 2-6 September 2018. Cambridge, United Kingdom: Cambridge University Press.
Wijfells, G., Sullivan, M., Stockwell, S., Briscoe, S., De Melo Costa, C., McCulloch, R., Cawdell-Smith, J., Olm, J., Anderson, S. and Gaughan, J. (2018). Contrasting the metabolic endocrine responses of beef steers under moderate thermal challenges with pair fed thermoneutral counterparts. International Symposium on the Nutrition of Herbivores, Clermont-Ferrand, France, 2-6 September 2018. Cambridge, United Kingdom: Cambridge University Press.
Philips, N., Alawneh, J., Andres, A., Fraser, B., Olm, J. and Rose, E. (2018). Concurrent neonatal anaplasmosis in an australian dairy calf. The Second International Conference on Sustainable Agriculture and Environemtn, Ho Chi Minh City, Vietnam, 13-15 December 2018.
Anderson, S.T., Steiger, N., Sullivan, M.L., Stockwell, S., McCulloch, R., Briscoe, S., Cawdell-Smith, A.J., Olm, J., Gaughan, J.B. and Wijffels, G. (2017). Evidence for decreased bone formation in growing steers under heat stress. 21st European Society of Veterinary and Comparative Nutrition Congress, Cirencester, United Kingdom, 20-23 September 2017.
Wijfells, G., Sullivan, M. L., Stockwell, S., Briscoe, S., McCulloch, R., Straube, J., Olm, J., Cawdell-Smith, J., Anderson, S. T., Le Cao, K.-A. and Gaughan, J. B. (2016). The metabolic and inflammatory challenges of summer in the feedlot. Northern Australia Beef Research Update Conference, Rockhampton, QLD Australia, 15 - 18 August 2016. Gympie, QLD, Australia: Queensland North Australia Beef Research Council.