School of Veterinary Science

Professor Nigel Perkins

Head of School, School of Veterinary Science
School of Veterinary Science
+61 7 54601 967
View researcher profile

Researcher biography

Professor Nigel Perkins is from a mixed grazing property in south west Queensland and completed a veterinary degree at the University of Queensland, followed by a Master of Science at The Ohio State University and a PhD in veterinary epidemiology at Massey University, New Zealand. He has practiced as a veterinarian in Queensland, New South Wales and Victoria and has worked as a veterinary academic clinician at university veterinary schools in Australia, the USA and New Zealand. In 2003 Nigel was promoted to Associate Professor in veterinary epidemiology and Group Leader of the EpiCentre, an internationally acclaimed epidemiology research and consultancy centre within the Institute of Veterinary, Animal and Biomedical Science, Massey University. Nigel then joined AusVet - a private epidemiology consultancy company - in 2004 and became a Director of AusVet in 2007. Nigel joined UQ in February 2016 as Professor of One Health and Academic Superintendent within the School of Veterinary Science. In October 2017 Nigel was appointed as the Head of School of the School of Veterinary Science.

Nigel has held leadership roles in a number of organisations, including research program manager for the Horse R&D Program within the Rural Industries Research and Development Corporation (RIRDC), surveillance program co-ordinator for the Australian Biosecurity Co-operative Research Centre (AB-CRC), and Chief Examiner of the Australian and New Zealand College of Veterinary Scientists. He is the current Chair of the Thoroughbred Advisory Panel for Agrifutures Australia. Nigel is recognised nationally and internationally as a leader in the field of veterinary epidemiology. He has broad experience in investigations of animal health, welfare, production and disease in a number of species including sheep, cattle, horses, poultry, pigs, aquatic species, and wildlife, as well as experience in human health projects. He has been involved in many short-term projects in Asian countries associated with capacity building in animal health, transboundary animal disease preparedness and response, risk analysis and disease outbreaks. Nigel's work has a strong focus on improving animal health, production and welfare outcomes in Australian livestock as well as providing leadership within the veterinary profession and in the broader areas of science, food sustainability and one health. .

Publications

Books (2)
Book Chapters (5)
Journal Articles (141)
Conference Papers (39)
Department Technical Report (1)
Research Reports (2)

Books

Jubb, Tristan and Perkins, Nigel R. (2015). Veterinary Handbook for Cattle, Sheep and Goats. Sydney, Australia: Australian Livestock Export Corporation Limited.
Jubb, Tristan and Perkins, Nigel (2012). Veterinary handbook for the live export industry, version 4.0. North Sydney, Australia: Meat &​ Livestock Australia and LiveCorp.

Book Chapters

Perkins, Nigel R. (2011). Epidemiology applied to horse reproduction. Equine reproduction. (pp. 2796-2802) edited by Angus O. McKinnon, Edward L. Squires, Wendy E. Vaala and Dickson D. Varner. Ames, Iowa, United States: Wiley-Blackwell Publishing.
Baldock, F. Chris, Cameron, Angus R. and Perkins, Nigel R. (2008). Aquatic animal health surveillance. Aquaculture biosecurity: prevention, control, and eradication of aquatic animal disease. (pp. 129-148) edited by A. David Scarfe, Cheng‒Sheng Lee and Patricia J. O'Bryen. Oxford, United Kingdom: Blackwell Publishing. doi: 10.1002/9780470376850.ch9
Perkins, N. R., Sebastian, M. M., Todhunter, K. H., Wylie, R. M., Begg, A. P., Muscatello, G., Gilkerson, J. R., Racklyeft, D. J., Chicken, C., Wilson, M. C., Cawdell-Smith, A. J. and Bryden, W. L. (2007). Pregnancy loss in mares associated with exposure to caterpillars in Kentucky and Australia. Poisonous Plants: Global Research and Solutions. (pp. 165-170) edited by Panter, K.E., Wierenga, T.L. and Pfister, J.A.. United Kingdom: CABI Publishing.
Perkins, Nigel R. (2004). Reproductive management. Equine sports medicine and surgery. (pp. 1193-1200) edited by Kenneth W. Hinchcliff, Andris J. Kaneps and Raymond J. Geor. Amsterdam, Netherlands: Elsevier. doi: 10.1016/B978-0-7020-2671-3.50064-7
Perkins, Nigel R. (2004). Mare breeding soundness examination. Equine internal medicine. (pp. 1030-1039) edited by Stephen M. Reed, Warwick M. Bayly and Debra C. Sellon. Amsterdam, Netherlands: Elsevier. doi: 10.1016/B0-72-169777-1/50018-4

Journal Articles

Symonds, Nicolle E., Dart, Andrew J., Perkins, Nigel R., Burns, Gillian, Young, Alex C., Bell, Robin J. W. and Jeffcott, Leo B. (2024). Repeatability of ultrasonographic measurement of cross-sectional area of the multifidus muscle in the horse. Equine Veterinary Education, 36 (12), 628-637. doi: 10.1111/eve.13955
Santos, L.C.P., McArthur, M., Perkins, N. and Goodwin, W. (2024). Psychological, Physical, and Professional Impact on Second Victims in Veterinary Anaesthesia: A Cross-Sectional International Survey - Part 1. Veterinary Anaesthesia and Analgesia. doi: 10.1016/j.vaa.2024.10.140
Santos, L. C. P., Perkins, N., Keates, H. and Goodwin, W. (2024). Anaesthetic practices and attitudes to patient safety in a sample of Australian veterinary practices. Veterinary Anaesthesia and Analgesia, 51 (5), 438-448. doi: 10.1016/j.vaa.2024.06.004
McCosker, K. D., Perkins, N. R., Fordyce, G., O’Rourke, P. K. and McGowan, M. R. (2023). Corrigendum to: Production and performance of commercial beef breeding females in northern Australia. 4. Factors influencing the occurrence of lactating cows becoming pregnant within 4 months of calving. Animal Production Science, 63 (4), 422-422. doi: 10.1071/an17502_co
Fordyce, Geoffry, Smith, Dave R., Perkins, Nigel R. and McGowan, Michael R. (2022). An objective prioritisation method for agriculture RD&E. The Rangeland Journal, 44 (3), 149-158. doi: 10.1071/rj22009
McCosker, K. D., Perkins, N. R., Fordyce, G., O’Rourke, P. K. and McGowan, M. R. (2022). Reproductive performance of northern Australia beef herds. 5. Factors influencing risk of non-pregnancy. Animal Production Science, 63 (4), 350-364. doi: 10.1071/an17503
McCosker, K. D., Perkins, N. R., Fordyce, G., O’Rourke, P. K. and McGowan, M. R. (2022). Reproductive performance of northern Australia beef herds. 4. Factors influencing the occurrence of lactating cows becoming pregnant within 4 months of calving. Animal Production Science, 63 (4), 332-349. doi: 10.1071/an17502
Fordyce, G., McCosker, K. D., Barnes, T. S., Perkins, N. R., O'Rourke, P. K. and McGowan, M. R. (2022). Reproductive performance of northern Australia beef herds. 6. Risk factors associated with reproductive losses between confirmed pregnancy and weaning. Animal Production Science, 63 (4), 365-377. doi: 10.1071/an19441
Fordyce, G., McCosker, K. D., Smith, D. R., Perkins, N. R., O'Rourke, P. K. and McGowan, M. R. (2022). Reproductive performance of northern Australia beef herds. 7. Risk factors affecting mortality rates of pregnant cows. Animal Production Science, 63 (4) ARTN AN19431, 378-387. doi: 10.1071/an19431
Crawford, Kylie L., Finnane, Anna, Greer, Ristan M., Barnes, Tamsin S., Phillips, Clive J. C., Woldeyohannes, Solomon M., Bishop, Emma L., Perkins, Nigel R. and Ahern, Benjamin J. (2021). Survival analysis of training methodologies and other risk factors for musculoskeletal injury in 2-year-old thoroughbred racehorses in Queensland, Australia. Frontiers in Veterinary Science, 8 698298, 1-17. doi: 10.3389/fvets.2021.698298
Cunneen, Alexandra, Pratt, Shaun, Perkins, Nigel, McEwen, Margaret, Truchetti, Geoffrey, Rainger, Joanne, Farry, Trish, Kidd, Lisa and Goodwin, Wendy (2021). Total Intravenous Anaesthesia with Ketamine, Medetomidine and Midazolam as Part of a Balanced Anaesthesia Technique in Horses Undergoing Castration. Veterinary Sciences, 8 (8) 142, 1-12. doi: 10.3390/vetsci8080142
Anstey, S., Lizárraga, D., Nyari, S., Chalmers, G., Carrick, J., Chicken, C., Jenkins, C., Perkins, N., Timms, P. and Jelocnik, M. (2021). Epidemiology of Chlamydia psittaci infections in pregnant Thoroughbred mares and foals. The Veterinary Journal, 273 105683, 1-8. doi: 10.1016/j.tvjl.2021.105683
Fordyce, Geoffry, Barnes, Tamsin S., McGowan, Michael R., Perkins, Nigel R., Smith, David R. and McCosker, Kieren D. (2021). Defining the primary business measure of liveweight production for beef cows in northern Australia. Animal Production Science, 63 (4), 395-409. doi: 10.1071/AN20096
Wood, C. M., Perkins, N., Tozer, S. J., Johnson, W., Barnes, T. S., McGowan, M., Gibson, J., Alawneh, J., Firestone, S. and Woldeyohannes, S. (2021). Prevalence and spatial distribution of Coxiella burnetii seropositivity in northern Australian beef cattle adjusted for diagnostic test uncertainty. Preventive Veterinary Medicine, 189 105282, 105282. doi: 10.1016/j.prevetmed.2021.105282
Crawford, Kylie L., Finnane, Anna, Greer, Ristan M., Phillips, Clive J. C., Bishop, Emma L., Woldeyohannes, Solomon M., Perkins, Nigel R. and Ahern, Benjamin J. (2021). A prospective study of training methods for two-year-old thoroughbred racehorses in Queensland, Australia, and analysis of the differences in training methods between trainers of varying stable sizes. Animals, 11 (4) 928, 928. doi: 10.3390/ani11040928
Rainger, J. E., Wardius, S., Medina-Torres, C. E., Dempsey, S. M., Perkins, N. and van Eps, A. W. (2021). The effect of regional hypothermia on mechanical nociceptive thresholds in the equine distal forelimb. The Veterinary Journal, 269 105607, 105607. doi: 10.1016/j.tvjl.2021.105607
Crawford, Kylie L., Finnane, Anna, Phillips, Clive J. C., Greer, Ristan M., Woldeyohannes, Solomon M., Perkins, Nigel R., Kidd, Lisa J. and Ahern, Benjamin J. (2021). The Risk Factors for Musculoskeletal Injuries in Thoroughbred Racehorses in Queensland, Australia: How These Vary for Two-Year-Old and Older Horses and with Type of Injury. Animals, 11 (2) 270, 270-28. doi: 10.3390/ani11020270
Crawford, Kylie L., Finnane, Anna, Greer, Ristan M., Phillips, Clive J. C., Woldeyohannes, Solomon M., Perkins, Nigel R. and Ahern, Benjamin J. (2021). Appraising the welfare of thoroughbred racehorses in training in Queensland, Australia: the incidence, risk factors and outcomes for horses after retirement from racing. Animals, 11 (1) 142, 142-14. doi: 10.3390/ani11010142
Anstey, Susan I., Kasimov, Vasilli, Jenkins, Cheryl, Legione, Alistair, Devlin, Joanne, Amery-Gale, Jemima, Gilkerson, James, Hair, Sam, Perkins, Nigel, Peel, Alison J., Borel, Nicole, Pannekoek, Yvonne, Chaber, Anne-Lise, Woolford, Lucy, Timms, Peter and Jelocnik, Martina (2021). Chlamydia psittaci st24: clonal strains of one health importance dominate in Australian horse, bird and human infections. Pathogens, 10 (8) 1015, 1015. doi: 10.3390/pathogens10081015
Crawford, Kylie L., Finnane, Anna, Greer, Ristan M., Phillips, Clive J. C., Woldeyohannes, Solomon M., Perkins, Nigel R. and Ahern, Benjamin J. (2020). Appraising the Welfare of Thoroughbred Racehorses in Training in Queensland, Australia: The Incidence and Type of Musculoskeletal Injuries Vary between Two-Year-Old and Older Thoroughbred Racehorses. Animals, 10 (11) 2046, 2046-20. doi: 10.3390/ani10112046
Crawford, Kylie L., Ahern, Benjamin J., Perkins, Nigel R., Phillips, Clive J. C. and Finnane, Anna (2020). The effect of combined training and racing high-speed exercise history on musculoskeletal injuries in thoroughbred racehorses: a systematic review and meta-analysis of the current literature. Animals, 10 (11) 2091, 2091-17. doi: 10.3390/ani10112091
Woldeyohannes, Solomon M., Perkins, Nigel R., Baker, Peter, Gilks, Charles F., Knibbs, Luke D. and Reid, Simon A. (2020). Q fever vaccine efficacy and occupational exposure risk in Queensland, Australia: A retrospective cohort study. Vaccine, 38 (42), 6578-6584. doi: 10.1016/j.vaccine.2020.08.006
Jukic, Chantelle C., Cowling, Nicholas R., Perkins, Nigel R., van Eps, Andrew W. and Ahern, Benjamin J. (2020). Evaluation of the effect of laser salpingopharyngostomy on the guttural pouch environment in horses. Equine Veterinary Journal, 52 (5) evj.13221, 752-759. doi: 10.1111/evj.13221
McIver, V. C., Tsang, A. S., Symonds, N. E., Perkins, N. R., Uquillas, E., Dart, C. M., Jeffcott, L. B. and Dart, A. J. (2020). Effects of topical treatment of cannabidiol extract in a unique manuka factor 5 manuka honey carrier on second intention wound healing on equine distal limb wounds: a preliminary study. Australian Veterinary Journal, 98 (6) avj.12932, 250-255. doi: 10.1111/avj.12932
Colgan, S. A., Perkins, N. R. and Green, L. A. (2019). The large-scale capture of eastern grey kangaroos (Macropus giganteus) and red kangaroos (Osphranter rufus) and its application to a population management project. Australian Veterinary Journal, 97 (12), 515-523. doi: 10.1111/avj.12886
Johnston, Georgina C. A., Wood, Kelly A., Jackson, Karen V., Perkins, Nigel R. and Zedler, Steven T. (2019). Evaluation of the inflammatory response to two intra‐articular hyaluronic acid formulations in normal equine joints. Journal of Veterinary Pharmacology and Therapeutics, 43 (1) jvp.12818, 38-49. doi: 10.1111/jvp.12818
Wood, Caitlin, Muleme, Michael, Tan, Tabita, Bosward, Katrina, Gibson, Justine, Alawneh, John, McGowan, Michael, Barnes, Tamsin S., Stenos, John, Perkins, Nigel, Firestone, Simon M. and Tozer, Sarah (2019). Validation of an indirect immunofluorescence assay (IFA) for the detection of IgG antibodies against Coxiella burnetii in bovine serum. Preventive Veterinary Medicine, 169 104698, 104698. doi: 10.1016/j.prevetmed.2019.104698
Pratt, S., Cunneen, A., Perkins, N., Farry, T., Kidd, L., McEwen, M., Rainger, J., Truchetti, G. and Goodwin, W. (2019). Total intravenous anaesthesia with ketamine, medetomidine and guaifenesin compared with ketamine, medetomidine and midazolam in young horses anaesthetised for computerised tomography. Equine Veterinary Journal, 51 (4) evj.13045, 510-516. doi: 10.1111/evj.13045
Goodwin, Wendy A., Pasloske, Kirby, Keates, Helen L., Ranasinghe, Millaganamada Gedara, Woldeyohannes, Solomon and Perkins, Nigel (2019). Alfaxalone for total intravenous anaesthesia in horses. Veterinary Anaesthesia and Analgesia, 46 (2), 188-199. doi: 10.1016/j.vaa.2018.09.047
Garrett, K., Milne, M., Doneley, R. and Perkins, N. (2019). Ultrasound evaluation of small intestinal thickness and a comparison to body weight in normal chickens (Gallus gallus domesticus). Australian Veterinary Journal, 97 (1-2), 39-42. doi: 10.1111/avj.12777
Woldeyohannes, Solomon M., Gilks, Charles F., Baker, Peter, Perkins, Nigel R. and Reid, Simon A. (2018). Seroprevlance of Coxiella burnetii among abattoir and slaughterhouse workers: A meta-analysis. One Health, 6, 23-28. doi: 10.1016/j.onehlt.2018.09.002
Lean, N. E., Perkins, N. R. and Ahern, B. J. (2018). Comparison of conventional radiography and computed tomography as aids in the diagnosis of osteomyelitis in 11 foals. Australian Veterinary Journal, 96 (7), 257-261. doi: 10.1111/avj.12710
Uquillas, E., Dart, C. M., Perkins, N. R. and Dart, A. J. (2018). Effect of reducing inspired oxygen concentration on oxygenation parameters during general anaesthesia in horses in lateral or dorsal recumbency. Australian Veterinary Journal, 96 (1-2), 46-53. doi: 10.1111/avj.12662
Tsang, A. S., Dart, A. J., Sole-Guitart, A., Dart, C. M., Perkins, N. R. and Jeffcort, L. B. (2017). Comparison of the effects of topical application of UMF20 and UMF5 manuka honey with a generic multifloral honey on wound healing variables in an uncontaminated surgical equine distal limb wound model. Australian Veterinary Journal, 95 (9), 333-337. doi: 10.1111/avj.12616
Huxford, K. E., Dart, A. J., Perkins, N. R., Bell, R. and Jeffcott, L. B. (2017). A pilot study comparing the effect of orally administered esomeprazole and omeprazole on gastric fluid pH in horses. New Zealand Veterinary Journal, 65 (6), 318-321. doi: 10.1080/00480169.2017.1359125
Bischofberge, A. S., Dart, C. M., Horadagoda, N., Perkins, N. R., Jeffcott, L. B., Little, C. B. and Dart, A. J. (2016). Effect of Manuka honey gel on the transforming growth factor β1 and β3 concentrations, bacterial counts and histomorphology of contaminated full-thickness skin wounds in equine distal limbs. Australian Veterinary Journal, 94 (1-2), 27-34. doi: 10.1111/avj.12405
Perkins, L.E., Zalucki, M.P., Perkins, N.R., Cawdell-Smith, A.J., Todhunter, K.H., Bryden, W.L. and Cribb, B.W. (2015). The urticating setae of Ochrogaster lunifer, an Australian processionary caterpillar of veterinary importance. Medical and Veterinary Entomology, 30 (2), 241-245. doi: 10.1111/mve.12156
Bischofberger, A. S., Tsang, A. S., Horadagoda, N., Dart, C. M., Perkins, N. R., Jeffcott, L. B., Jackson, C. J. and Dart, A. J. (2015). Effect of activated protein C in second intention healing of equine distal limb wounds: a preliminary study. Australian Veterinary Journal, 93 (10), 361-366. doi: 10.1111/avj.12363
Moore, S. J., Madin, B., Norman, G. and Perkins, N. R. (2015). Risk factors for mortality in cattle during live export from Australia by sea. Australian Veterinary Journal, 93 (10), 339-348. doi: 10.1111/avj.12355
Moore, S. Jo, O'Dea, Mark A., Perkins, Nigel and O'Hara, Amanda J. (2015). Estimation of nasal shedding and seroprevalence of organisms known to be associated with bovine respiratory disease in Australian live export cattle. Journal of Veterinary Diagnostic Investigation, 27 (1), 6-17. doi: 10.1177/1040638714559741
Todhunter, K. H., Cawdell-Smith, A. J., Bryden, W. L., Perkins, N. R. and Begg, A. P. (2014). Processionary Caterpillar Setae and Equine Fetal Loss: 1. Histopathology of Experimentally Exposed Pregnant Mares. Veterinary Pathology, 51 (6), 1117-1130. doi: 10.1177/0300985813516638
Todhunter, K. T., Cawdell-Smith, A. J., Bryden, W. L., Perkins, N. R. and Begg, A. P. (2014). Processionary caterpillar setae and equine fetal loss: 2. Histopathology of the fetal-placental unit from experimentally exposed mares. Veterinary Pathology, 51 (6), 1131-1142. doi: 10.1177/0300985813516639
Jackson, R., Hilson, R. P. N., Perkins, N. R., Heuer, C. and West, D. M. (2014). Epidemiology of vaginal prolapse in mixed-age ewes in New Zealand. New Zealand Veterinary Journal, 62 (6), 328-337. doi: 10.1080/00480169.2014.925788
Metcalfe, S, Hulands-Nave, A, Bell, M, Kidd, C, Pasloske, K, O'Hagan, B, Perkins, NR and Whittem, T (2014). Multicentre, randomized clinical trial evaluating the efficacy and safety of alfaxalone administered to bitches for induction of anaesthesia prior to caesarean section. Australian Veterinary Journal, 92 (9), 333-338. doi: 10.1111/avj.12223
Koenig, Toby J., Dart, Andrew J., McIlwraith, Wayne, Horadogoda, Neil, Bell, Robin J., Perkins, Nigel R., Dart, Christina, Krockenberger, Mark, Jeffcott, Leo B. and Little, Christopher B. (2014). Treatment of experimentally induced osteoarthritis in horses using an intravenous combination of sodium pentosan polysulfate, N‐acetyl glucosamine, and sodium hyaluronan. Veterinary Surgery, 43 (5), 612-622. doi: 10.1111/j.1532-950X.2014.12203.x
Cashmore, R. G., Havlicek, N., Perkins, N. R., James, D. R., Fearnside, S. M., Marchevsky, A. M. and Black, A. P. (2014). Major complications and risk factors associated with surgical correction of congenital medial patellar luxation in 124 dogs. Veterinary Comparative Orthopedics and Traumatology, 27 (4), 263-270. doi: 10.3415/VCOT-13-08-010
Moore, S. Jo, O'Dea, Mark A., Perkins, Nigel, Barnes, Anne and O'Hara, Amanda J. (2014). Mortality of live export cattle on long-haul voyages: pathologic changes and pathogens. Journal of Veterinary Diagnostic Investigation, 26 (2), 252-265. doi: 10.1177/1040638714522465
Cawdell-Smith, A. J., Todhunter, K. H., Perkins, N. R. and Bryden, W. L. (2013). Exposure of mares to processionary caterpillars (Ochrogaster lunifer) in early pregnancy: an additional dimension to equine amnionitis and fetal loss. Equine Veterinary Journal, 45 (6), 755-760. doi: 10.1111/evj.12044
Bischofberger, Andrea S., Wereszka, Marta M., Hadidane, Ines, Perkins, Nigel R., Jeffcott, Leo B. and Dart, Andrew J. (2013). Optimal tension, position and number of prostheses required to achieve maximum area of the rima glottidis following laryngoplasty. Veterinary Surgery, 42 (3), 280-285. doi: 10.1111/j.1532-950X.2013.01103.x
Bischofberger, Andrea S., Hadidane, Ines, Wereszka, Marta M., Perkins, Nigel R., Jeffcott, Leo B. and Dart, Andrew J. (2013). Effect of age and prostheses location on rima glottidis area in equine cadaveric larynges. Veterinary Surgery, 42 (3), 286-290. doi: 10.1111/j.1532-950X.2013.01101.x
Todhunter, KH, Muscatello, G, Blishen, AJ, Chicken, C, Perkins, NR, Gilkerson, JR and Begg, AP (2013). Bacteria isolated from field cases of equine amnionitis and foetal loss. Australian Veterinary Journal, 91 (4), 138-142. doi: 10.1111/avj.12022
Bischofberger, Andrea S., Dart, Christina M., Perkins, Nigel R., Kelly, Ashley, Jeffcott, Leo and Dart, Andrew J. (2013). The effect of short and longer term Manuka honey treatment on second intention healing of contaminated and uncontaminated wounds on the distal aspect of horses. Veterinary Surgery, 42 (2), 154-160. doi: 10.1111/j.1532-950X.2012.01083.x
O'Hagan, B, Pasloske, K, McKinnon, C, Perkins, NR and Whittem, T (2012). Clinical evaluation of alfaxalone as an anaesthetic induction agent in cats less than 12 weeks of age. Australian Veterinary Journal, 90 (10), 395-401. doi: 10.1111/j.1751-0813.2012.00983.x
O'Hagan, B, Pasloske, K, McKinnon, C, Perkins, NR and Whittem, T (2012). Clinical evaluation of alfaxalone as an anaesthetic induction agent in dogs less than 12 weeks of age. Australian Veterinary Journal, 90 (9), 346-350. doi: 10.1111/j.1751-0813.2012.00974.x
McGowan, Thomas W., Phillips, Clive J. C., Hodgson, David R., Perkins, Nigel and McGowan, Catherine M. (2012). Euthanasia in aged horses: Relationship between the owner's personality and their opinions on, and experience of, euthanasia of horses. Anthrozoos, 25 (3), 261-275. doi: 10.2752/175303712X13403555186091
Kwan, C, Bell, RJ, Koenig, T, Bischofberger, A, Horadogoda, N, Perkins, NR, Jeffcott, LB and Dart, AJ (2012). Effects of intra-articular sodium pentosan polysulfate and glucosamine on the cytology, total protein concentration and viscosity of synovial fluid in horses. Australian Veterinary Journal, 90 (8), 315-320. doi: 10.1111/j.1751-0813.2012.00959.x
Tee, SY, Dart, AJ, MacDonald, MH, Perkins, NR, Horadogoda, N and Jeffcott, LB (2012). Effects of collecting serial tracheal aspirate and bronchoalveolar lavage samples on the cytological findings of subsequent samples in healthy Standardbred horses. Australian Veterinary Journal, 90 (7), 247-251. doi: 10.1111/j.1751-0813.2012.00950.x
Ruppin, M, Sullivan, S, Coindon, F, Perkins, NR, Lee, L, Jeffcott, LB and Dart, AJ (2012). Retrospective study of 103 presumed cases of tick (Ixodes holocyclus) envenomation in the horse. Australian Veterinary Journal, 90 (5), 175-180. doi: 10.1111/j.1751-0813.2012.00916.x
Cawdell-Smith, A.J., Todhunter, K.H., Anderson, S.T., Perkins, N.R. and Bryden, W.L. (2012). Equine amnionitis and fetal loss: Mare abortion following experimental exposure to Processionary caterpillars (Ochrogaster lunifer). Equine Veterinary Journal, 44 (3), 282-288. doi: 10.1111/j.2042-3306.2011.00424.x
Bischofberger, Andrea S., Dart, Christina M., Perkins, Nigel R. and Dart, Andrew J. (2011). A preliminary study on the effect of manuka honey on second intention healing of wounds on distal forelimbs in horses. Veterinary Surgery, 40 (7), 898-902. doi: 10.1111/j.1532-950X.2011.00886.x
Kung, N, Mackenzie, S, Pitt, D, Robinson, B and Perkins, NR (2011). Significant features of the epidemiology of equine influenza in Queensland, Australia, 2007. Australian Veterinary Journal, 89 (S1), 78-85. doi: 10.1111/j.1751-0813.2011.00781.x
Frazer, JL, Perkins, NR and Pitt, D (2011). Role of personal decontamination in preventing the spread of equine influenza. Australian Veterinary Journal, 89 (S1), 120-124. doi: 10.1111/j.1751-0813.2011.00763.x
Perkins, NR, Webster, WR, Wright, T, Denney, I and Links, I (2011). Vaccination program in the response to the 2007 equine influenza outbreak in Australia. Australian Veterinary Journal, 89 (S1), 126-134. doi: 10.1111/j.1751-0813.2011.00766.x
Izzo, MM, Kirkland, PD, Mohler, VL, Perkins, NR, Gunn, AA and House, JK (2011). Prevalence of major enteric pathogens in Australian dairy calves with diarrhoea. Australian Veterinary Journal, 89 (5), 167-173. doi: 10.1111/j.1751-0813.2011.00692.x
Dart, Andrew J., Dart, Christina M., Dudhia, Jay, Perkins, Nigel, Canfield, Paul and Smith, Roger K. W. (2011). A preliminary study on the effect of wounding on transforming growth factor-beta 1 and cartilage oligomeric matrix protein concentrations in the skin of horses. Veterinary Surgery, 40 (1), 59-65. doi: 10.1111/j.1532-950X.2010.00756.x
Clarke, D. E., Kelman, M. and Perkins, N. (2011). Effectiveness of a vegetable dental chew on periodontal disease parameters in toy breed dogs. Journal of Veterinary Dentistry, 28 (4), 230-235. doi: 10.1177/089875641102800403
McGowan, T. W., Pinchbeck, G., Phillips, C. J. C., Perkins, N., Hodgson, D. R. and McGowan, C. M. (2010). A survey of aged horses in Queensland, Australia. Part 2: clinical signs and owners' perceptions of health and welfare. Australian Veterinary Journal, 88 (12), 465-471. doi: 10.1111/j.1751-0813.2010.00638.x
McGowan, T. W., Pinchbeck, G., Phillips. C. J. C., Perkins, N., Hodgson, D. R. and McGowan, C. M. (2010). A survey of aged horses in Queensland, Australia. Part 1: Management and preventive health care. Australian Veterinary Journal, 88 (11), 420-427. doi: 10.1111/j.1751-0813.2010.00637.x
Breed, Andrew, Field, Hume, Perkins, Nigel, Eby, Peggy, Cunningham, Andrew and Prowse, Stephen (2010). Re: flying foxes carrying Hendra virus in Queensland pose a potential problem for other states. Australian Veterinary Journal, 88 (8), N24-N24.
Frazer, G. S., Perkins, N. R. and Embertson, R. M. (2010). Normal parturition and evaluation of the mare in dystocia. Equine Veterinary Education, 14 (Sup.5), 22-26. doi: 10.1111/j.2042-3292.2002.tb01790.x
Frazer, G. S., Embertson, R. M. and Perkins, N. R. (2010). Complications of late gestation in the mare. Equine Veterinary Education, 14 (Sup.5), 16-21. doi: 10.1111/j.2042-3292.2002.tb01789.x
Rainger, JE, Dart, CM and Perkins, NR (2010). Factors affecting the relationship between arterial and end-tidal carbon dioxide pressures in the anaesthetized horse. Australian Veterinary Journal, 88 (1-2), 13-19. doi: 10.1111/j.1751-0813.2009.00535.x
Pasloske, K., Sauer, B., Perkins, N. and Whittem, T. (2009). Plasma pharmacokinetics of alfaxalone in both premedicated and unpremedicated Greyhound dogs after single, intravenous administration of Alfaxan at a clinical dose. Journal of Veterinary Pharmacology and Therapeutics, 32 (5), 510-513. doi: 10.1111/j.1365-2885.2009.01070.x
Sullivan, T. M., Micke, G. C., Perkins, N., Martin, G. B., Wallace, C. R., Gatford, K. L., Owens, J. A. and Perry, V. E. A. (2009). Dietary protein during gestation affects maternal insulin-like growth factor, insulin-like growth factor binding protein, leptin concentrations, and fetal growth in heifers. Journal of Animal Science, 87 (10), 3304-3316. doi: 10.2527/jas.2008-1753
Perkins, N. R. (2009). Equine influenza in Australia. Microbiology Australia, 30 (4), 129-131.
Dart, Andrew, Tee, Elizabeth, Brennan, Moses, Dart, Christina, Perkins, Nigel, Chapman, Stella and Debney, Sally (2009). Effect of prosthesis number and position on rima glottidis area in equine laryngeal specimens. Veterinary Surgery, 38 (4), 452-456. doi: 10.1111/j.1532-950X.2009.00525.x
Dart, AJ, Perkins, NR, Dart, CM, Jeffcott, LB and Canfield, P (2009). Effect of bandaging on second intention healing of wounds of the distal limb in horses. Australian Veterinary Journal, 87 (6), 215-218. doi: 10.1111/j.1751-0813.2009.00428.x
Prowse, Stephen J., Perkins, Nigel and Field, Hume (2009). Strategies for enhancing Australia's capacity to respond to emerging infectious diseases. Veterinaria Italiana, 45 (1), 67-78.
Todhunter, K. H., Perkins, N R., Wylie, R. M., Chicken, C., Blishen, A. J., Racklyeft, D. J., Muscatello, G., Wilson, M. C., Adams, P. L., Gilkerson, J. R., Bryden, W. L. and Begg, A. P. (2009). Equine amnionitis and fetal loss: The case definition for an unrecognised cause of abortion in mares. Australian Veterinary Journal, 87 (1-2), 35-38. doi: 10.1111/j.1751-0813.2008.00386.x
Cogger, N., Evans, D. L., Hodgson, D. R., Reid, S. W. and Perkins, N. (2008). Incidence rate of musculoskeletal injuries and determinants of time to recovery in young Australian Thoroughbred racehorses. Australian Veterinary Journal, 86 (12), 473-480. doi: 10.1111/j.1751-0813.2008.00359.x
Cogger, N., Perkins, N., Hodgson, D. R., Reid, S. W. and Evans, D. L. (2008). Profiling training preparation in young Australian Thoroughbred racehorses. Australian Veterinary Journal, 86 (11), 419-424. doi: 10.1111/j.1751-0813.2008.00358.x
Perkins, N (2008). Review of Applied veterinary epidemiology and the control of disease in populations. Australian Veterinary Journal, 78 (8), 570-570. doi: 10.1111/j.1751-0813.2000.tb11905.x
Pottie, R. G., Dart, C. D. and Perkins, N. R. (2008). Speed of induction of anaesthesia in dogs administered halothane, isoflurane, sevoflurane or propofol in a clinical setting. Australian Veterinary Journal, 86 (1-2), 26-31. doi: 10.1111/j.1751-0813.2007.00244.x
Pottie, R. G., Parte, C. M., Perkins, N. R. and Hodgson, D. R. (2007). Effect of hypothermia on recovery from general anaesthesia in the dog. Australian Veterinary Journal, 85 (4), 158-162. doi: 10.1111/j.1751-0813.2007.00128.x
Kung, Nina Y., Morris, Roger S., Perkins, Nigel R., Sims, Les D., Ellis, Trevor M., Bissett, Lucy, Chow, Mary, Shortridge, Ken F., Guan, Yi and Peiris, Malik J. S. (2007). Risk for infection with highly pathogenic influenza A virus (H5N1) in chickens, Hong Kong, 2002. Emerging Infectious Diseases, 13 (3), 412-418. doi: 10.3201/eid1303.060365
Bell, R. J.W., Kingston, J. K., Mogg, T. D. and Perkins, N. R. (2007). The prevalence of gastric ulceration in racehorses in New Zealand. New Zealand Veterinary Journal, 55 (1), 13-18. doi: 10.1080/00480169.2007.36729
Miller, R. I., Ross, S. P., Sullivan, N. D. and Perkins, N. R. (2007). Clinical and epidemiological features of canine leptospirosis in North Queensland. Australian Veterinary Journal, 85 (1-2), 13-19. doi: 10.1111/j.1751-0813.2006.00089.x
Smith, R. L., Perkins, N. R., Firth, E. C. and Anderson, B. H. (2006). Arytenoid mucosal injury in young Thoroughbred horses - investigation of a proposed aetiology and clinical significance. New Zealand Veterinary Journal, 54 (4), 173-177. doi: 10.1080/00480169.2006.36691
Kerslake, J. I. and Perkins, N. R. (2006). Salmonella Brandenburg: case-control survey in sheep in New Zealand. New Zealand Veterinary Journal, 54 (3), 125-131. doi: 10.1080/00480169.2006.36624
Suter, R.J., McKinnon, E., Perkins, N.R. and Besier, R.B. (2005). The effective life of ivermectin on Western Australian sheep farms - A survival analysis. Preventive Veterinary Medicine, 72 (3-4), 311-322. doi: 10.1016/j.prevetmed.2005.07.014
Perkins, N.R., Reid, S.W.J. and Morris, R.S. (2005). Risk factors for injury to the superficial digital flexor tendon and suspensory apparatus in Thoroughbred racehorses in New Zealand. New Zealand Veterinary Journal, 53 (3), 184-192. doi: 10.1080/00480169.2005.36503
Perkins, N.R., Reid, S.W.J. and Morris, R.S. (2005). Risk factors for musculoskeletal injuries of the lower limbs in Thoroughbred racehorses in New Zealand. New Zealand Veterinary Journal, 53 (3), 171-183. doi: 10.1080/00480169.2005.36502
Perkins, N.R., Reid, S.W.J. and Morris, R.S. (2005). Profiling the New Zealand Thoroughbred racing industry. 2. Conditions interfering with training and racing. New Zealand Veterinary Journal, 53 (1), 69-76. doi: 10.1080/00480169.2005.36471
Perkins, N.R., Reid, S.W.J. and Morris, R.S. (2005). Profiling the New Zealand Thoroughbred racing industry. 1. Training, racing and general health patterns. New Zealand Veterinary Journal, 53 (1), 59-68. doi: 10.1080/00480169.2005.36470
Mannering, S.A., West, D.M., Fenwick, S.G., Marchant, R.M., Perkins, N.R. and O'Connell, K. (2004). Pulsed-field gel electrophoresis typing of Campylobacter fetus subsp fetus isolated from sheep abortions in New Zealand. New Zealand Veterinary Journal, 52 (6), 358-363. doi: 10.1080/00480169.2004.36452
Kenyon, P.R., Pinchbeck, G.L., Perkins, N.R., Morris, S.T. and West, D.M. (2004). Identifying factors which maximise the lambing performance of hoggets: a cross sectional study. New Zealand Veterinary Journal, 52 (6), 371-377. doi: 10.1080/00480169.2004.36454
Firth, E.C., Rogers, C.W., Perkins, N.R., Anderson, B.H. and Grace, N.D. (2004). Musculoskeletal responses of 2-year-old Thoroughbred horses to early training. 1. Study design, and clinical, nutritional, radiological and histological observations. New Zealand Veterinary Journal, 52 (5), 261-271. doi: 10.1080/00480169.2004.36438
Perkins, N.R., Rogers, C.W., Firth, E.C. and Anderson, B.H. (2004). Musculoskeletal responses of 2-year-old Thoroughbred training. 3. In vivo ultrasonographic assessment of the 280 horses to early cross-sectional area and echogenicity of the superficial digital flexor tendon. New Zealand Veterinary Journal, 52 (5), 280-284. doi: 10.1080/00480169.2004.36440
Perkins, N.R., Reid, S.W.J. and Morris, R.S. (2004). Effect of training location and time period on racehorse performance in New Zealand. 1. Descriptive analysis. New Zealand Veterinary Journal, 52 (5), 236-242. doi: 10.1080/00480169.2004.36434
Perkins, N.R., Reid, S.W.J. and Morris, R.S. (2004). Effect of training location and time period on racehorse performance in New Zealand. 2. Multivariable analysis. New Zealand Veterinary Journal, 52 (5), 243-249. doi: 10.1080/00480169.2004.36435
Jackson, R., Goodwin, K.A., Perkins, N.R. and Roddick, J. (2004). New Zealand veterinarians - demography, remuneration and vacancies. New Zealand Veterinary Journal, 52 (4), 180-188. doi: 10.1080/00480169.2004.36426
Goodwin, K.A., Jackson, R., Brown, C., Davies, P.R., Morris, R.S. and Perkins, N.R. (2004). Pneumonic lesions in lambs in New Zealand: patterns of prevalence and effects on production. New Zealand Veterinary Journal, 52 (4), 175-179. doi: 10.1080/00480169.2004.36425
Suter, R.J., Besier, R.B., Perkins, N.R., Robertson, I.D. and Chapman, H.M. (2004). Sheep-farm risk factors for ivermectin resistance in Ostertagia circumcincta in Western Australia. Preventive Veterinary Medicine, 63 (3-4), 257-269. doi: 10.1016/S0167-5877(04)00041-8
Secombe, C.J., Firth, E.C., Perkins, N.R., Bailey, D. and Anderson, B.H. (2004). The quantitative assessment of photodensity of the third carpal bone in the horse. New Zealand Veterinary Journal, 52 (2), 70-75. doi: 10.1080/00480169.2004.36407
Boxall, N.S., Perkins, N.R., Marks, D., Jones, B., Fenwick, S.G. and Davies, P.R. (2003). Free available chlorine in commercial broiler chicken drinking water in New Zealand. Journal of Food Protection, 66 (11), 2164-2167. doi: 10.4315/0362-028x-66.11.2164
Mannering, S.A., Marchant, R.M., Middelberg, A., Perkins, N.R., West, D.M. and Fenwick, S.G. (2003). Pulsed-field gel electrophoresis typing of Campylobacter fetus subsp fetus from sheep abortions in the Hawke's Bay region of New Zealand. New Zealand Veterinary Journal, 51 (1), 33-37. doi: 10.1080/00480169.2003.36327
Perkins, N. R. and Threlfall, W. R. (2002). Mastitis in the mare. Equine Veterinary Education, 14 (S5), 99-102. doi: 10.1111/j.2042-3292.2002.tb01804.x
Frazer, G. S., Perkins, N. R. and Embertson, R. M. (2002). Correction of equine dystocia. Equine Veterinary Education, 14 (S5), 27-32. doi: 10.1111/j.2042-3292.2002.tb01791.x
Evans, M.J., Kitson, N.E., Alexander, S.L., Irvine, C.H.G., Turner, J.E., Perkins, N.R. and Livesey, J.H. (2002). Effectiveness of an antagonist to gonadotrophin releasing hormone on the FSH and LH response to GnRH in perifused equine pituitary cells, and in seasonally acyclic mares. Animal Reproduction Science, 73 (1-2), 37-51. doi: 10.1016/s0378-4320(02)00130-6
Brown Douglas, C. G., Perkins, N. R., Stafford, K. J. and Hedderly, D. I. (2002). Vorhersage des abfohlens anhand der zusammensetzung des milchdrüsensekrets. Pferdeheilkunde, 18 (5), 485-486.
Douglas, C. G. B., Perkins, N. R., Stafford, K. J. and Hedderley, D. I. (2002). Prediction of foaling using mammary secretion constituents. New Zealand Veterinary Journal, 50 (3), 99-103. doi: 10.1080/00480169.2002.36290
Secombe, C.J., Firth, E.C., Perkins, N.R. and Anderson, B.H. (2002). Pathophysiology and diagnosis of third carpal bone disease in horses: a review. New Zealand Veterinary Journal, 50 (1), 2-8. doi: 10.1080/00480169.2002.36241
Dart, A. J., Perkins, N., Dowling, B. A., Batterham, T., Livingston, C. and Hodgson, D. R. (2001). The effect of three different doses of sodium pentosan polysulphate on haematological and haemostatic variables in adult horses. Australian Veterinary Journal, 79 (9), 624-627. doi: 10.1111/j.1751-0813.2001.tb10784.x
Perkins, N.R. and Grimmett, J.B. (2001). Pregnancy and twinning rates in Thoroughbred mares following the administration of human chorionic gonadotropin (hCG). New Zealand Veterinary Journal, 49 (3), 94-100. doi: 10.1080/00480169.2001.36210
Grimmett, J. B. and Perkins, N. R. (2001). Human chorionic gonadotropin (hCG): the effect of dose on ovulation and pregnancy rate in Thoroughbred mares experiencing their first ovulation of the breeding season. New Zealand Veterinary Journal, 49 (3), 88-93. doi: 10.1080/00480169.2001.36209
Perkins, N.R. (1999). Equine reproductive pharmacology. Veterinary Clinics of North America-Equine Practice, 15 (3), 687-704. doi: 10.1016/s0749-0739(17)30139-6
Henderson, K. M., Perkins, N. R., Wards, R. L. and Stewart, J. I. (1999). Enzymeimmunoassay of oestrone sulphate concentrations in faeces for non-invasive pregnancy determination in mares. New Zealand Veterinary Journal, 47 (2), 61-66. doi: 10.1080/00480169.1999.36112
Frazer, G.S., Perkins, N.R. and Embertson, R.M. (1999). Correction of equine dystocia. Equine Veterinary Education, 11 (1), 48-53. doi: 10.1111/j.2042-3292.1999.tb00920.x
Frazer, G. S., Perkins, N. R. and Embertson, R. M. (1999). Normal parturition and evaluation of the mare in dystocia. Equine Veterinary Education, 11 (1), 41-46. doi: 10.1111/j.2042-3292.1999.tb00918.x
Hill, , Thompson, JA and Perkins, NR (1998). Factors affecting pregnancy rates following laparoscopic insemination of 28,447 Merino ewes under commercial conditions: A survey. Theriogenology, 49 (4), 697-709. doi: 10.1016/S0093-691X(98)00019-3
Frazer, GS, Embertson, R and Perkins, NR (1997). Complications of late gestation in the mare. Equine Veterinary Education, 9 (6), 306-311. doi: 10.1111/j.2042-3292.1997.tb01749.x
Frazer, G. S., Perkins, N. R., Blanchard, T. L., Orsini, J. and Threlfall, W. R. (1997). Prevalence of fetal maldispositions in equine referral hospital dystocias. Equine Veterinary Journal, 29 (2), 111-116. doi: 10.1111/j.2042-3306.1997.tb01651.x
Constable, P. D., Streeter, R. N., Koenig, G. J., Perkins, N. R., Gohar, H. M. and Morin, D. E. (1997). Determinants and utility of the anion gap in predicting hyperlactatemia in cattle. Journal of Veterinary Internal Medicine, 11 (2), 71-79. doi: 10.1111/j.1939-1676.1997.tb00076.x
Perkins, N. R., Hardy, J., Frazer, G. S. and Threlfall, W. R. (1996). Theriogenology question of the month. Transrectal palpation used to diagnose uterine torsion in a horse. Journal of the American Veterinary Medical Association, 209 (8), 1395-1396.
Perkins, N. R., Frazer, G. S. and Hull, B. L. (1996). Endocrine diagnosis of cryptorchidism in a llama. Australian Veterinary Journal, 74 (4), 275-277. doi: 10.1111/j.1751-0813.1996.tb13773.x
Frazer, G.S., Perkins, N.R. and Constable, P.D. (1996). Bovine uterine torsion: 164 hospital referral cases. Theriogenology, 46 (5), 739-758. doi: 10.1016/s0093-691x(96)00233-6
Perkins, NR, Hill, and Pedrana, RG (1996). Laparoscopic insemination of frozen-thawed semen into one or both uterine horns without regard to ovulation site in synchronized merino ewes. Theriogenology, 46 (3), 541-545. doi: 10.1016/0093-691X(96)00175-6
Perkins, N. R., Frazer, G. S. and Threlfall, W. R. (1996). Testicular prosthesis in a Quarterhorse stallion: a case report. Theriogenology, 45 (3), 535-540. doi: 10.1016/0093-691x(95)00400-3
Perkins, N. R. and Frazer, G. S. (1995). Ovarian remnant syndrome in a toy poodle - a case-report. Theriogenology, 44 (3), 307-312. doi: 10.1016/0093-691x(95)00185-b
Frazer, G. S. and Perkins, N. R. (1995). Cesarean section. The Veterinary clinics of North America. Food animal practice, 11 (1), 19-35. doi: 10.1016/s0749-0720(15)30507-7
Perkins, N. R. and Frazer, G. S. (1994). Reproductive emergencies in the mare. The Veterinary clinics of North America: Equine practice, 10 (3), 643-670. doi: 10.1016/S0749-0739(17)30352-8
Perkins, N. R. and Frazer, G. S. (1994). Reproductive emergencies in the stallion. The Veterinary clinics of North America: Equine Practice, 10 (3), 671-683. doi: 10.1016/S0749-0739(17)30353-X
Perkins, N., Threlfall, W.R. and Ottobre, J.S. (1993). Pulsatile secretion of luteinizing-hormone and progesterone in mares during the estrous-cycle and early-pregnancy. American Journal of Veterinary Research, 54 (11), 1929-1934.
Perkins, N.R., Threlfall, W.R. and Ottobre, J.S. (1993). Absence of diurnal-variation in serum progesterone concentrations in mares. Theriogenology, 39 (6), 1353-1365. doi: 10.1016/0093-691x(93)90237-y
Perkins, N. R. and Threlfall, W. R. (1993). Mastitis in the mare. Equine Veterinary Education, 5 (4), 192-195. doi: 10.1111/j.2042-3292.1993.tb01043.x
Perkins, N.R., Robertson, J.T. and Colon, L.A. (1992). Uterine Torsion and uterine tear in a mare. Journal of the American Veterinary Medical Association, 201 (1), 92-94.
Perkins, N. R. and Heath, T. J. (1990). Pathways of lymph flow from superficial tissues in the legs of horses. Research in Veterinary Science, 48 (1), 119-123. doi: 10.1016/s0034-5288(18)31521-2
Haibel, G.K., Perkins, N.R. and Lidl, G.M. (1989). Breed differences in biparietal diameters of second trimester Toggenbubrg, Nubian and Angora goat fetuses. Theriogenology, 32 (5), 827-834. doi: 10.1016/0093-691x(89)90471-8
Haibel, G. K. and Perkins, N. R. (1989). Real-time ultrasonic biparietal diameter of 2nd trimester Suffolk and Finn sheep fetuses and prediction of gestational-age. Theriogenology, 32 (5), 863-869. doi: 10.1016/0093-691x(89)90474-3
Heath, Trevor J. and Perkins, Nigel R. (1989). Pathways between lymph vessels and sinuses in lymph nodes: A study in horses. The Anatomical Record, 223 (4), 420-424. doi: 10.1002/ar.1092230411
Heath, T. J. and Perkins, N. R. (1985). Effect of development of the ovine forestomachs on the anatomy of portal vessels and on the intrahepatic distribution of portal blood. Research in Veterinary Science, 39 (2), 216-221. doi: 10.1016/s0034-5288(18)31748-x

Conference Papers

Lees, Angela M., Shemish-Lahey, Lawrence O., Woldeyohannes, Solomon M., Perkins, Nigel R. and Gaughan, John B. (2024). The influence weather station location on heat load prediction in Australian Feedlots. 35th Biennial Conference of the Australian Association of Animal Sciences and the 20th Asian - Australasian Association of Animal Production Societies, Melbourne, VIC, Australia, 8-12 July 2024. Toowong, QLD, Australia: Australian Society of Animal Production.
Feez, A. M., Randhawa, I., Perkins, N. R., Wood, B. J. and Abdullah, S. (2023). A comparison between visual scoring and a digital object counting platform to estimate buffalo fly counts on cattle.. 2023 ASP Annual Conference, Darwin, NT Australia, 5-8 September.
Cowling, N., Woldeyohannes, S., Rainger, J., McEwen, M., Perkins, N., Barnes, T. and Goodwin, W. (2019). Effects of acepromazine and medetomidine on the tissue oxygen saturation measured with near infrared spectroscopy in anaesthetised dogs. American college of veterinary anesthesia and analgesia annual meeting, Washington, DC, United States, 7 September 2019. Amsterdam, Netherlands: Elsevier. doi: 10.1016/j.vaa.2019.08.015
Harriott, Lana, Wood, Caitlin, Gentle, Matthew, Traub, Rebecca, Soares-Magalhaes, Ricardo, Perkins, Nigel, Tozer, Sarah and Cobbold, Rowland (2019). Occurrence of bacterial pathogens and antimicrobial resistance in peri-urban wild dogs. Pest Animals and Weeds Symposium 2019, Gold Coast, QLD Australia, 20-23 May 2019. North Sydney, NSW Australia: FutureBeef.
Farry, T., Lau, C., Keates, H., McEwen, M., Woldeyohannes, S., Barnes, T., Perkins, N. and Goodwin, W. (2019). Comparison of two formulations of alfaxalone in laboratory zebra fish (Danio rerio) for use in immersion anaesthesia. American College of Veterinary Anesthesia and Analgesia Annual Meeting, Washington, DC, United States, 7 September 2019. Amsterdam, Netherlands: Elsevier. doi: 10.1016/j.vaa.2019.08.017
Cowling, N., Woldeyohannes, S., Rainger, J., McEwen, M., Perkins, N., Barnes, T. and Goodwin, W. (2019). Effects of acepromazine and medetomidine on the tissue oxygen saturation measured with near infrared spectroscopy in anaesthetised dogs. 25th International Veterinary Emergency & Critical Care Symposium, Washington, DC, United States, 6-10 September 2019. Amsterdam, Netherlands: Elsevier. doi: 10.1016/j.vaa.2019.08.015
Wood, Caitlin, Harriott, Lana, Soares Magalhaes, Ricardo, Cobbold, Rowland, Perkins, Nigel and Tozer, Sarah (2018). Are peri-urban wild dogs another potential source of transmission of Q fever in Queensland?. Australian Society for Microbiology Conference 2018, Brisbane, QLD Australia, 1-4 July 2018.
Perkins, N. (2015). Statistics for Vets - preparing for and analysing bioequivalence data. Pan Pacific Veterinary Conference, Brisbane, Australia, 24-29 May 2015. St Leonards, NSW, Australia: Australian Veterinary Association (AVA).
McGowan, Michael, McCosker, Kieren, Fordyce, Geoffry, Smith, Dave, Perkins, Nigel, O’Rourke, Peter, Barnes, Tamsin, Marquart, Louise, Menzies, Don, Newsome, Tom, Joyner, Di, Phillips, Nancy, Burns, Brian, Morton, John and Jephcott, Sandi (2014). Factors affecting the efficiency with which beef cows become pregnant after calving in Northern Australia. 28th World Buiatrics Congress, Cairns, Australia, 27 July-1 August 2014. Eight Mile Plains, Qld. Australian: Australian Cattle Veterinarians.
McGowan, Michael, McCosker, Kieren, Fordyce, Geoffry, Smith, Dave, Perkins, Nigel, O'Rourke, Peter, Barnes, Tamsin, Marquart, Louise, Menzies, Don, Newsome, Tom, Joyner, Di, Phillips, Nancy, Burns, Brian, Morton, John and Jephcott, Sandi (2014). Factors affecting the efficiency with which beef cows become pregnant after calving in Northern Australia. 28th World Buiatrics Congress, Cairns, QLD, Australia, 27 July - 1 August 2014.
McGowan, Michael R., McCosker, Kieren D., Fordyce, Geoff, Smith, David, Perkins, Nigel, O'Rourke, Peter K., Barnes, Tamsin, Marquart, Louise, Menzies, Don, Newsome, Tom, Joyner, Di, Phillips, Nancy, Burns, Brian M., Morton, John M. and Jephcott, Sandi (2013). Insights from Cash Cow. Northern Beef Research Update Conference, Cairns, QLD Australia, 12-15 August 2013. Gympie, QLD Australia: North Australia Beef Research Council.
McGowan, Michael R., McCosker, K. D., Fordyce, G., Smith, D. R., Perkins, N. R., O'Rourke, P. K., Barnes, T., Marquart, L., Menzies, D., Newsome, T., Joyner, D., Phillips, N., Burns, B. M., Morton, J. M. and Jephcott, J. (2013). Factors affecting performance of beef breeding herds: findings from the Cash Cow project. ACV 2013: Australian Cattle Veterinarians 2013 Conference, Darwin, NT, Australia, 26-28 June 2013. Eight Mile Plains, QLD, Australia: Australian Cattle Veterinarians.
Fordyce, Geoffry, McCosker, Kieren, Smith, Dave, O'Rourke, Peter, Perkins, Nigel and McGowan, Michael (2013). Performance and production of North Australian beef breeding herds - findings from The Cash Cow Project. Australian Cattle Veterinarians 2013 Conference, Darwin, NT Australia, 25-28 June 2013. Eight Mile Plains, QLD Australia: Australian Cattle Veterinarians.
Cawdell-Smith, A. J., Anderson, S. T., Todhunter, K. H., Perkins, N. R. and Bryden, W. L. (2012). Endocrine responses in Processionary caterpillar induced EAFL. 4th Australasian Equine Science Symposium, Gold Coast, Australia, 13-15 June 2012. Gatton, Australia: The University of Queensand, School of Agriculture and Food Sciences.
Perkins, N. R., Cawdell-Smith, A. J., Carrick, J. B. and Zalucki, M. P. (2012). EAFL risk and caterpillar ecology. 4th Australasian Equine Science Symposium, Gold Coast , Australia, 13-15 June 2012. Gatton, Australia: The University of Queensand, School of Agriculture and Food Sciences.
Todhunter, K. H., Cawdell-Smith, A. J., Bryden, W. L., Perkins, N. R. and Begg, A. P. (2012). Histopathology of the feto-placental unit following experimental inductino of EAFL. 4th Australasian Equine Science Symposium, Gold Coast, Australia, 13-15 June 2012. Gatton, Australia: The University of Queensand, School of Agriculture and Food Sciences.
Farmer, T., Cowley, T., Streeter, S. J., Perkins, N., Quigley, S. P. and Poppi, D. P. (2011). Live weight gain of weaner steers selected on growth rate after weaning and fed Cavalcade (Centrosema pascuroum) or Mekong grass (Brachiaria brizantha) hay. Northern Beef Research Update Conference (NBRUC 2011), Darwin, NT, Australia, 2 - 5 August 2011.
McGowan, Michael, McCosker, Kieren, Fordyce, Geoffry, Smith, Dave, Burns, Brian, Jephcott, Sandi, Newsome, Tom, Menzies, Don, Joyner, Di, Perkins Nigel and O'Rourke, Peter (2011). Cashcow for vets: Using foetal-aging to improve the reproductive management of beef herds. Australian Veterinary Association Annual Conference (AVA, 2011), Adelaide, SA Australia, 15-20 May 2011. St Leonards, NSW Australia: Australian Veterinary Association.
McCosker, Kieren D., McGowan, Michael R., O'Rourke, Peter K., Smith, David R., Fordyce, Geoffry, Burns, Brian M., Joyner, Di, Phillips, Nancy, Menzies, Don, Newsome, Tom, Perkins, Nigel R., Morton, John M. and Jephcott, Sandi (2011). Cash Cow-exposing northern breeder herd productivity. Northern Beef Research Update Conference (NBRUC 2011), Darwin, Australia, 3-4 August 2011. Park Ridge, QLD, Australia: North Australia Beef Research Council.
Cawdell-Smith, A. J., Todhunter, K. H., Perkins, N. R., Begg, A. P. and Bryden, W. L. (2010). Nocardioform like focal mucoid placentitis as sequelae to caterpillar exposure in mares. 3rd Australasian Equine Science Symposium 2010, Gold Coast, Australia, 3-5 June 2010.
Todhunter, K. H., Cawdell-Smith, A. J., Perkins, N. R., Begg, A.P. and Bryden, W. L. (2010). Pathology of mares aborting during equine amnionitis and foetal loss. 3rd Australasian Equine Science Symposium 2010, Gold Coast, Australia, 3-5 June 2010.
Cawdell-Smith, A. J., Todhunter, K. H., Perkins, N. R. and Bryden, W. L. (2010). Placentitis following exposure of mares to Processionary Caterpillars. 3rd Australasian Equine Science Symposium 2010, Gold Coast, Australia, 3-5 June 2010.
Todhunter. K.H., Cawdell-Smith, A.J., Begg, A.P., Perkins, N.R. and Bryden, W.L. (2010). Caterpillars and equine fetal loss: aspects of histopathology. 10th International Symposium on Equine Reproduction, Lexington, KY, U.S.A., Elsevier BV. Netherlands: Elsevier BV.
Cawdell-Smith, A.J., Todhunter. K.H., Anderson, S.T., Perkins, N.R. and Bryden, W.L. (2010). Caterpillars and equine fetal loss: An Australian perspective. 10th International Symposium on Equine Reproduction, Lexington, KY, U.S.A., 26-30 July, 2010. Netherlands: Elsevier BV.
Todhunter, K. H., Cawdell-Smith, A. J., Perkins, N. R., Bryden, W. L. and Begg, A. P. (2008). Equine amnionitis and foetal loss: aspects of the pathology. Research for the 21st Century Horse Industry: From Genomics to the Winning Post., Gold Coast, Australia, 4-6 June, 2008. Australia: Australian Equine Genetics Research Centre.
Cawdell-Smith, A. J., Todhunter, K. H., Perkins, N. R. and Bryden, W. L. (2008). Processionary caterpillars are an abortifacient in mares. Australia & New Zealand Societies of Animal Production. First Joint Conference, St. Lucia, Queensland, 23-27 June 2008. Australia: Australian Society of Animal Production.
Cawdell-Smith, A. J., Todhunter, K. H., Perkins, N. R. and Bryden, W. L. (2008). Processionary caterpillars: their role in early pregnancy loss. Research for the 21st Century Horse Industry: From Genomics to the Winning Post., Gold Coast , Australia, 4-6 June, 2008. Australia: Australian Equine Genetics Research Centre.
Bryden, W. L., Broad, T. E., Cawdell-Smith, A. J., Sillence, M. N., Perkins, N. R. and Hodgson, D. R. (2007). Australian Equine Science Symposium : An Overview. USA Equine Science Symposium (ESS 2007), Marriott Hunt Valley Inn, Hunt Valley , MD, 5-9 June 2007.
Cawdell-Smith, A. J., Burey, K. M., Perkins, N. R. and Bryden, W. L. (2007). Mare fertility following transport and separation from foal. USA Equine Science Symposium (ESS 2007), Maryland, USA, 5-6 June, 2007.
Cawdell-Smith, A. J., Todhunter, K. H., Shini, S, Perkins, N. R. and Bryden, W. L. (2007). Establishment of a link between processionary caterpillars and pregnancy loss in Australian mares. USA Equine Science Symposium (ESS 2007), University of Maryland, 5-9 June 2007. Maryland, USA: University of Maryland.
Cawdell-Smith, A. J., Todhunter, K. H., Perkins, N. R. and Bryden, W. L. (2007). A role for caterpillars in the aetiology of equine amnionitis and foetal loss (EAFL). Recent Advances in Animal Nutrition in Australia, Armidale, NSW, Australia, 9-11 July, 2007. Armidale, NSW, Australia: Dept. of Biochemistry, Microbiology and Nutrition, University of New England.
Cogger, N., Perkins, N., Hodgson, D. R., Reid, S. W. J. and Evans, D. L. (2006). Risk factors for musculoskeletal injuries in 2-year-old Thoroughbred racehorses. Meeting of the Society-for-Veterinary-Epidemiology-and-Preventive-Medicine, Warwick, England, 2003. Amsterdam, Netherlands: Elsevier. doi: 10.1016/j.prevetmed.2006.01.005
McGowan, T. M., Perkins, N., Pinchbeck, G., Hohenhaus, M. A., Hodgson, D. R., Pearce, G. P. and McGowan, C. M. (2006). Owner perceptions of health and welfare issues in horses aged 15 yrs or older. 11th International Symposium on Veterinary Epidemiology and Economics, Cairns, Australia, 6-11 August 2006.
McGowan, T. W., Perkins, N. R., Pinchbeck, G. L., Hohenhaus, M. A., Phillips, C. P., Hodgson, D. R. and McGowan, C. M. (2006). Survival rates of horses in Queensland, Australia over a 2 year period. 11th International Symposium on Veterinary Epidemiology and Economics, Cairns, Australia, 6-11 August 2006.
Perkins, N. R., Todhunter, H., Wylie, M., Begg, P., Gilkerson, R., Muscatello,, Racklyeft, J., Chicken,, Wilson, C. and Cawdell-Smith, A.J. (2006). Equine amnionitis and foetal loss (EAFL) identified as a cause of pregnancy loss in Australian mares. Equine Science 2006 : Australian Equine Science Symposium, Gold Coast, Qld, Australia, 13-14 June, 2006. Gold Coast, Qld, Australia: Australian Equine Science Symposium.
Burey, K.M., Cawdell-Smith, A J and Perkins, N. R. (2006). Effect of transport and separation from foal on mare fertility at first post-foaling service. Equine Science 2006 : Australian Equine Science Symposium, Gold Coast, Qld, Australia, 13-14 June, 2006. Gold Coast, Qld, Australia: Australian Equine Science Symposium.
McGowan, T. W., Perkins, N. R., Hohenhaus, M. A., Hodgson, D. R. and McGowan, C. M. (2005). Owner perceptions of health and welfare issues in horses aged 15 yrs or older. Showcasing Faculty research through our postgraduates, Gatton, Qld, 8th December 2005. Gatton, Qld: NRAVS Faculty.
Kung, N.Y., Guan, Y., Perkins, N.R., Bissett, L., Ellis, T., Sims, L., Morris, R.S., Shortridge, K.F. and Peiris, J.S.M. (2003). The impact of a monthly rest day on avian influenza virus isolation rates in retail live poultry markets in Hong Kong. 5th International Symposium on Avian Influenza, Athens, GA United States, 14-17 April, 2002. Jacksonville, FL United States: American Association of Avian Pathologists. doi: 10.1637/0005-2086-47.s3.1037
Cawdell-Smith, A.J., Todhunter, K.H., Perkins, N.R. and Bryden, W.L. Stage of pregnancy and foetal loss following exposure of mares to processionary caterpillars. United States,

Department Technical Report

McGowan, Michael, McCosker, Kieren D., Fordyce, Geoffry, Smith, Dave R., O'Rourke, Peter, Perkins, Nigel, Barnes, Tamsin, Marquart, Louise, Morton, John, Newsome, Tom, Menzies, Don, Burns, Brian and Jephcott, Sandi (2014). North Australian beef fertility project: CashCow. B.NBP.0382. School of Veterinary Science, The University of Queensland.

Research Reports

McGowan, Michael, McCosker, Kieren, Fordyce, Geoffry, Smith, Dave, O'Rourke, Peter, Perkins, Nigel, Barnes, Tamsin, Marquart, Louise, Morton, John, Newsome, Tom, Menzies, Don, Burns, Brian and Jephcott, Sandi (2014). Northern Australian beef fertility project: CashCow. Final Report North Sydney, NSW, Australia: Meat and Livestock Australia.
Bryden, W. L. and Perkins, N. R. (2006). Analysis of stabling requirements for the Thoroughbred racing industry in South East Queensland. Queensland Racing Limited.