Publications
Book
Beggs, David, Bertram, John, Chenoweth, Peter, Entwistle, Keith, Fordyce, Geoffry, Johnston, Helen, Johnston, Peter, McGowan, Michael, Niethe, Geoffrey, Norman, Scott and Perry, Viv (2013). Veterinary bull breeding soundness evaluation. Brisbane, QLD, Australia: Australian Veterinary Association.
Book Chapter
Poppi, Dennis, Fordyce, Geoffry, Panjaitan, Tanda, Dahlanuddin and Quigley, Simon (2011). Case study 2: Developing an integrated production system for Bali cattle in the eastern islands of Indonesia. Beef production in crop-livestock systems: Simple approaches for complex problems. (pp. 57-82) Canberra, ACT, Australia: Australian Centre for International Agricultural Research.
Journal Articles
Juli, Mst Sogra Banu, Raza, Ali, Forutan, Mehrnush, Siddle, Hannah V., Fordyce, Geoffry, Muller, Jarud, Boe-Hansen, Gry B. and Tabor, Ala E. (2024). Characterisation of reproductive tract microbiome and immune biomarkers for bovine genital campylobacteriosis in vaccinated and unvaccinated heifers. Frontiers in Microbiology, 15 1404525. doi: 10.3389/fmicb.2024.1404525
Forutan, Mehrnush, Engle, Bailey N., Chamberlain, Amanda J., Ross, Elizabeth M., Nguyen, Loan T., D’Occhio, Michael J., Snr, Alf Collins, Kho, Elise A., Fordyce, Geoffry, Speight, Shannon, Goddard, Michael E. and Hayes, Ben J. (2024). Genome-wide association and expression quantitative trait loci in cattle reveals common genes regulating mammalian fertility. Communications Biology, 7 (1) 724, 724. doi: 10.1038/s42003-024-06403-2
Hayes, Ben J., Copley, James, Dodd, Elsie, Ross, Elizabeth M., Speight, Shannon and Fordyce, Geoffry (2023). Multi-breed genomic evaluation for tropical beef cattle when no pedigree information is available. Genetics Selection Evolution, 55 (1) 71, 1-13. doi: 10.1186/s12711-023-00847-6
Warburton, Christie L., Costilla, Roy, Engle, Bailey N., Moore, Stephen S., Corbet, Nicholas J., Fordyce, Geoffry, McGowan, Michael R., Burns, Brian M. and Hayes, Ben J. (2023). Concurrently mapping quantitative trait loci associations from multiple subspecies within hybrid populations. Heredity, 131 (5-6), 350-360. doi: 10.1038/s41437-023-00651-4
McCosker, K. D., Smith, D. R., Burns, B. M., Fordyce, G., O’Rourke, P. K. and McGowan, M. R. (2023). Reproductive performance of northern Australian beef herds. 3. Descriptive analysis of major factors affecting reproductive performance. Animal Production Science, 63 (4), 320-331. doi: 10.1071/an22244
Ong, Chian Teng, Ross, Elizabeth M., Boe-Hansen, Gry, Turni, Conny, Hayes, Ben J., Fordyce, Geoffry and Tabor, Ala E. (2022). Adaptive sampling during sequencing reveals the origins of the bovine reproductive tract microbiome across reproductive stages and sexes. Scientific reports, 12 (1) 15075, 1-12. doi: 10.1038/s41598-022-19022-w
Fordyce, G., Smith, D.R., McGowan, M.R and McCosker, K.D. (2022). Live weight accounting for beef cow management. Livestock Science, 262 104960, 104960. doi: 10.1016/j.livsci.2022.104960
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
Muller, Jarud, Silva, Luis Prada e and Fordyce, Geoffry (2022). High frequency of delayed milk delivery to neonates in tropical beef herds. Reproduction in Domestic Animals, 57 (10), 1176-1186. doi: 10.1111/rda.14188
Naseem, Muhammad Noman, Raza, Ali, Fordyce, Geoffry, McGowan, Michael, Constantinoiu, Constantin, Turni, Conny, Allavena, Rachel, Tabor, Ala and James, Peter (2022). Detection and distribution of Stephanofilaria sp. in buffalo flies and buffalo fly lesions in north Australian beef cattle. Veterinary Parasitology, 305 109715, 109715. doi: 10.1016/j.vetpar.2022.109715
Copley, James P., Engle, Bailey N., Ross, Elizabeth M., Speight, Shannon, Fordyce, Geoffry, Wood, Benjamin J., Voss-Fels, Kai P. and Hayes, Benjamin J. (2022). Environmental variation effects fertility in tropical beef cattle. Translational Animal Science, 6 (2) txac035, 1-10. doi: 10.1093/tas/txac035
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
Silva, L. F. P., Muller, J., Cavalieri, J. and Fordyce, G. (2022). Immediate prepartum supplementation accelerates progesterone decline, boosting passive immunity transfer in tropically adapted beef cattle. Animal Production Science, 62 (11), 983-992. doi: 10.1071/an21504
Irons, P. C., McGowan, M., Assis, P. M., Randhawa, I., Awawdeh, L., Mugwabana, J., Barnes, T. S., Boe‐Hansen, G., McCosker, K. and Fordyce, G. (2022). Prevalence of Tritrichomonas foetus in beef bulls slaughtered at two abattoirs in northern Australia. Australian Veterinary Journal, 100 (5), 201-204. doi: 10.1111/avj.13149
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
Fordyce, Geoffry, Williams, Paul, Corbet, Nicholas J., Costilla, Roy and McGowan, Michael R. (2021). Pregnancy rate per cycle is heritable and reduces with cycle in naturally‐mated tropically‐adapted beef cows. Reproduction in Domestic Animals, 56 (10) rda.13989, 1286-1292. doi: 10.1111/rda.13989
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
Fordyce, Geoffry, Shephard, Richard, Moravek, Tim and McGowan, Michael R. (2021). Australian cattle herd: a new perspective on structure, performance and production. Animal Production Science, 63 (4), 410-421. doi: 10.1071/an20342
Warburton, Christie L., Costilla, Roy, Engle, Bailey N., Corbet, Nicholas J., Allen, Jack M., Fordyce, Geoffry, McGowan, Michael R., Burns, Brian M. and Hayes, Ben J. (2021). Breed-adjusted genomic relationship matrices as a method to account for population stratification in multibreed populations of tropically adapted beef heifers. Animal Production Science, 61 (18), 1788-1795. doi: 10.1071/an21057
McCosker, K. D., Fordyce, G., O'Rourke, P. K. and McGowan, M. R. (2020). Reproductive performance of northern Australia beef herds. 2. Descriptive analysis of monitored reproductive performance. Animal Production Science, 63 (4), 311-319. doi: 10.1071/AN17495
Allen, Lee R., Barnes, Tamsin S., Fordyce, Geoffry, McCosker, Kieren D. and McGowan, Michael R. (2020). Reproductive performance of northern Australia beef herds. 8. Impact of rainfall and wild dog control on percentage fetal and calf loss. Animal Production Science, 63 (4), 388-394. doi: 10.1071/an19430
McGowan, Michael, McCosker, Kieren, Fordyce, Geoff and Kirkland, Peter (2020). Epidemiology and management of BVDV in rangeland beef breeding herds in Northern Australia. Viruses, 12 (10) v12101063, 1063. doi: 10.3390/v12101063
Warburton, Christie L., Engle, Bailey N., Ross, Elizabeth M., Costilla, Roy, Moore, Stephen S., Corbet, Nicholas J., Allen, Jack M., Laing, Alan R., Fordyce, Geoffry, Lyons, Russell E., McGowan, Michael R., Burns, Brian M. and Hayes, Ben J. (2020). Use of whole-genome sequence data and novel genomic selection strategies to improve selection for age at puberty in tropically-adapted beef heifers. Genetics Selection Evolution, 52 (1) 28, 28. doi: 10.1186/s12711-020-00547-5
McCosker, K. D., Jephcott, S., Burns, B. M., Smith, D. R., Fordyce, G., O'Rourke, P. K. and McGowan, M. R. (2020). Reproductive performance of northern Australia beef herds. 1. Survey of nutritional, breeding and herd health management practices and of the environment. Animal Production Science, 63 (4), 301-310. doi: 10.1071/AN17494
Engle, Bailey N., Corbet, Nicholas J., Allen, Jamie M., Laing, Alan R., Fordyce, Geoffry, McGowan, Michael R., Burns, Brian M., Burns, Brian M. and Hayes, Ben J. (2019). Multivariate genomic predictions for age at puberty in tropically adapted beef heifers. Journal of Animal Science, 97 (1), 90-100. doi: 10.1093/jas/sky428
Hayes, Ben J., Corbet, Nicholas J., Allen, Jack M., Laing, Alan R., Fordyce, Geoffry, Lyons, Russel, McGowan, Michael R. and Burns, Brian M. (2019). Towards multi-breed genomic evaluations for female fertility of tropical beef cattle. Journal of Animal Science, 97 (1), 55-62. doi: 10.1093/jas/sky417
Fordyce, G., McMillan, H. and McGrath, N. (2018). Postoperative healing and behaviour when surgical swabs are applied to calf dehorning wounds. Australian Veterinary Journal, 96 (12), 508-515. doi: 10.1111/avj.12771
Burns, Brian M., Hiendleder, Stefan, Laing, Alan R., Fordyce, Geoffry and Herring, Andy D. (2018). Ultrasonographic measurements in first trimester concepti identify predictors of birth weight and postnatal development in cattle. Journal of Animal Science, 96 (10), 4186-4194. doi: 10.1093/jas/sky290
Corbet, N. J., Allen, J. M., Laing, A. R., Fordyce, G., McGowan, M. R. and Burns, B. M. (2018). Using ultrasound to derive new reproductive traits in tropical beef breeds: implications for genetic evaluation. Animal Production Science, 58 (9), 1735-1742. doi: 10.1071/AN16616
Fordyce, Geoffry and Chandra, Kerri (2017). Growth of Brahman cross heifers to 2 years of age in the dry tropics. Animal Production Science, 59 (1), 148-159. doi: 10.1071/AN17305
Fordyce, G, Olchowy, TWJ and Anderson, A (2015). Hydration in non-suckling neonatal Brahman cross calves. Australian veterinary Journal, 93 (6), 214-220. doi: 10.1111/avj.12324
Porto-Neto, Laercio R., Reverter, Antonio, Prayaga, Kishore C., Chan, Eva K. F., Johnston, David J., Hawken, Rachel J., Fordyce, Geoffrey, Garcia, Jose Fernando, Sonstegard, Tad S., Bolormaa, Sunduimijid, Goddard, Michael E., Burrow, Heather M., Henshall, John M., Lehnert, Sigrid A. and Barendse, William (2014). The genetic architecture of climatic adaptation of tropical cattle. PLoS One, 9 (11) e113284, e113284. doi: 10.1371/journal.pone.0113284
Fordyce, Geoffry, McGowan, Michael R., Lisle, Allan, Muller, Tracy, Allen, Jack, Duff, Christian, Holroyd, Richard G., Corbet, Nicholas J. and Burns, Brian M. (2014). Scrotal circumference of Australian beef bulls. Theriogenology, 81 (6), 805-812. doi: 10.1016/j.theriogenology.2013.12.020
Bunter, Kim L., Johnston, David J., Wolcott, Matthew L. and Fordyce, Geoffry (2014). Factors associated with calf mortality in tropically adapted beef breeds managed in extensive Australian production systems. Animal Production Science, 54 (1), 25-36. doi: 10.1071/AN12421
Johnston, D. J., Barwick, S. A., Fordyce, G, Holroyd, R. G., Williams, P. J., Corbet, N. J. and Grant, T. (2014). Genetics of early and lifetime annual reproductive performance in cows of two tropical beef genotypes in northern Australia. Animal Production Science, 54 (1), 1-15. doi: 10.1071/AN13043
Fordyce, G., Holroyd, R. G., Taylor, J. and Kirkland, P. D. (2013). Neospora caninum and reproductive wastage in extensively managed Queensland beef herds. Australian Veterinary Journal, 91 (9), 385-390. doi: 10.1111/avj.12097
D'Occhio, Michael J., Hengstberger, Kirsten J., Tutt, Desmond, Holroyd, Richard G., Fordyce, Geoffry, Boe-Hansen, Gry B. and Johnston, Steve D. (2013). Sperm chromatin in beef bulls in tropical environments. Theriogenology, 79 (6), 946-952. doi: 10.1016/j.theriogenology.2013.01.012
Fordyce, Geoffry, Anderson, Angela, McCosker, Kieren, Williams, Paul J., Holroyd, Richard G., Corbet, Nick J. and Sullivan, Michael S. (2013). Liveweight prediction from hip height, condition score, fetal age and breed in tropical female cattle. Animal Production Science, 53 (4), 275-282. doi: 10.1071/AN12253
Hawken, R. J., Zhang, Y. D., Fortes, M. R. S., Collis, E., Barris, W. C., Corbet, N. J., Williams, P. J., Fordyce, G., Holroyd, R. G., Walkley, J. R. W, Barendse, W., Johnston, D. J., Prayaga, K. C., Tier, B., Reverter, A. and Lehnert S. A. (2012). Genome-wide association studies of female reproduction in tropically adapted beef cattle. Journal of Animal Science, 90 (5), 1398-1410. doi: 10.2527/jas.2011-4410
Fortes, M. R. S., Lehnert, S. A., Bolormaa, S., Reich, C., Fordyce, G., Corbet, N. J., Whan, V., Hawken, R. J. and Reverter, A. (2012). Finding genes for economically important traits: Brahman cattle puberty. Animal Production Science, 52 (2-3), 143-150. doi: 10.1071/AN11165
Fordyce, G. (2011). Heifer puberty and pregnancies in the tropics. The Australian Cattle Veterinarian, 61, 21-21.
Burns, Brian M., Herring, Andy D., Allen, Jack M., McGowan, Michael R., Holland, Michael, Braithwaite, Ian and Fordyce, Geoffry (2011). Genetic strategies for improved beef production in challenging environments such as Northern Australia. The Australian Cattle Veterinarian, 60, 14-19.
Fordyce, G., Allingham, A., Candy, B., Bettridge, S., Lynch, E. and Bertram, J. (2011). An example of a weather change causing temporary bull sub-fertility. The Australian Cattle Veterinarian, 58, 13-16.
Phillips, N. J., Fordyce, G., Burns, B., Williams, P., Mayer, D., Bo, G. O. and McGowan, M. R. (2010). Does the amount of progesterone in intravaginal implants used to synchronise oestrus affect the reproductive performance of brahman heifers artificially inseminated at a fixed time. Reproduction In Domestic Animals, 45 (6), e392-e397. doi: 10.1111/j.1439-0531.2010.01585.x
Burns, B. M., Fordyce, G. and Holroyd, R. G. (2010). A review of factors that impact on the capacity of beef cattle females to conceive, maintain a pregnancy and wean a calf: Implications for reproductive efficiency in northern Australia. Animal Reproduction Science, 122 (1-2), 1-22. doi: 10.1016/j.anireprosci.2010.04.010
Doogan, V. J., Fordyce, G., Holroyd, R. G., Lisle, A., McGowan, M. R. and Muller, T. A. (2010). Scrotal size in tropically-adapted beef bulls in northern Australia. The Australian Cattle Veterinarian (54), 26.
Barwick, S. A., Johnston, D. J., Burrow, H. M., Holroyd, R. G., Fordyce, G., Wolcott, M. L., Sim, W. D. and Sullivan, M. T. (2009). Genetics of heifer performance in 'wet' and 'dry' seasons and their relationships with steer performance in two tropical beef genotypes. Animal Production Science, 49 (5-6), 367-382. doi: 10.1071/EA08273
Prayaga, K. C., Corbet, N. J., Johnston, D. J., Wolcott, M. L., Fordyce, G. and Burrow, H. M. (2009). Genetics of adaptive traits in heifers and their relationship to growth, pubertal and carcass traits in two tropical beef cattle genotypes. Animal Production Science, 49 (5-6), 413-425. doi: 10.1071/EA08247
Johnston, D. J., Barwick, S. A., Corbet, N. J., Fordyce, G., Holroyd, R. G., Williams, P. J. and Burrow, H. M. (2009). Genetics of heifer puberty in two tropical beef genotypes in northern Australia and associations with heifer- and steer-production traits. Animal Production Science, 49 (5-6), 399-412. doi: 10.1071/EA08276
Fordyce, Geoffry, Coates, Ruth, Debney, Megan, Haselton, Stan, Rebgetz, Robert, Laing, Alan R., Cooper, Neil J., Hall, Rebecca, Holmes, William E. and Doogan, Vivienne J. (2009). A systems evaluation of high-input management using fortified molasses for beef production in Australia's dry tropics. Animal Production Science, 49 (3), 177-191. doi: 10.1071/EA07225
McMillen, Lyle, Fordyce, Geoffry, Doogan, Vivienne J. and Lew, Ala E. (2006). Comparison of culture and a novel 5' Taq nuclease assay for the direct detection of Campylobacter fetus subspecies venerealis in clinical specimens from cattle. Journal of Clinical Microbiology, 44 (3), 938-945. doi: 10.1128/JCM.44.3.938-945.2006
JubbTF, Fordyce, G, BolamMJ, HaddenDJ, CooperNJ, WhyteTR, FitzpatrickLA, HillF and D'OcchioMJ (2003). Trial introduction of the Willis dropped ovary technique for spaying cattle in northern Australia. Australian Veterinary Journal, 81 (1-2), 66-70. doi: 10.1111/j.1751-0813.2003.tb11436.x
Fordyce, G., Fitzpatrick, L. A., Cooper, N. J., Doogan, V. J., De Faveri, J. and Holroyd, R. G. (2002). Bull selection and use in northern Australia. 5. Social behaviour and management. Animal Reproduction Science, 71 (1-2), 81-99. doi: 10.1016/S0378-4320(02)00027-1
Holroyd, R. G., Doogan, W., DeFaveri, J., Fordyce, G., McGowan, M. R., Bertram, J. D., Vankan, D. M., Fitzpatrick, L. A., Jayawardhana, G. A. and Miller, R. G. (2002). Bull selection and use in northern Australia. 4. Calf output and predictors of fertility of bulls in multiple-sire herds. Animal Reproduction Science, 71 (1-2), 67-79. doi: 10.1016/S0378-4320(02)00026-X
D'OcchioMJ, Fordyce, G., WhyteTR, JubbTF, FitzpatrickLA, CooperNJ, AspdenWJ, BolamMJ and TriggTE (2002). Use of GnRH agonist implants for long-term suppression of fertility in extensively managed heifers and cows. Animal Reproduction Science, 74 (3-4), 151-162. doi: 10.1016/S0378-4320(02)00189-6
Bertram, J. D., Fordyce, G., McGowan, M. R., Jayawardhana, G. A., Fitzpatrick, L. A., Doogan, V. J., DeFaveri, J. and Holroyd, R. G. (2002). Bull selection and use in northern Australia. 3. Serving capacity tests. Animal Reproduction Science, 71 (1-2), 51-66. doi: 10.1016/S0378-4320(02)00025-8
Fitzpatrick, L. A., Fordyce, G., McGowan, M. R., Bertram, J. D., Doogan, V. J., DeFaveri, J., Miller, R. G. and Holroyd, R. G. (2002). Bull selection and use in northern Australia. Part 2. Semen traits. Animal Reproduction Science, 71 (1-2), 39-49. doi: 10.1016/S0378-4320(02)00024-6
McGowan, M. R., Bertram, J. D., Fordyce, G., Fitzpatrick, L. A., Miller, R. G., Jayawardhana, G. A., Doogan, V. J., DeFaveri, J. and Holroyd, R. G. (2002). Bull selection and use in northern Australia. 1. Physical traits. Animal Reproduction Science, 71 (1-2), 25-37. doi: 10.1016/S0378-4320(02)00023-4
Fordyce, G, JubbTF, FitzpatrickLA, WhyteTR, CooperNJ, BolamMJ, HaddonDJ, HillF and D'OcchioMJ (2001). Contraceptive efficacy of an intra-uterine device in Brahman cattle. Animal Reproduction Science, 65 (3-4), 193-204. doi: 10.1016/S0378-4320(01)00081-1
Fordyce, Geoffry (2000). AVJ editorial raises concerns among some researchers. Australian Veterinary Journal, 78 (12), 815-815. doi: 10.1111/j.1751-0813.2000.tb10483.x
Fordyce, G., FitzpatrickLA, MullinsTJ, CooperNJ, ReidDJ and EntwistleKW (1997). Prepartum supplementation effects on growth and fertility in Bos indicus-cross cows. Australian Journal of Experimental Agriculture, 37 (2), 141-149. doi: 10.1071/EA96015
Fordyce, G., Howitt, C. J., Holroyd, R. G., O'Rourke, P. K. and Entwistle, K. W. (1996). The performance of Brahman-Shorthorn and Sahiwal-Shorthorn beef cattle in the dry tropics of northern Queensland .5. Scrotal circumference, temperament, ectoparasite resistance, and the genetics of growth and other traits in bulls. Australian Journal of Experimental Agriculture, 36 (1), 9-17. doi: 10.1071/EA9960009
Fordyce, G., Cooper, N. J., Kendall, I. E., OLeary, B. M. and deFaveri, J. (1996). Creep feeding and prepartum supplementation effects on growth and fertility of Brahman-cross cattle in the dry tropics. Australian Journal of Experimental Agriculture, 36 (4), 389-395. doi: 10.1071/EA9960389
O'Rourke, P. K., Fordyce, G., Holroyd, R. G. and Sullivan, R. M. (1995). Mortality, wastage, and lifetime productivity of Bos indicus cows under extensive grazing in northern Australia. 3. Comparison of culling strategies. Australian Journal of Experimental Agriculture, 35 (3), 307-316. doi: 10.1071/EA9950307
O'Rourke, P. K., Fordyce, G., Holroyd, R. G. and Loxton, I. D. (1995). Mortality, wastage, and lifetime productivity of Bos indicus cows under extensive grazing in northern Australia 1. Seasonal mating in the speargrass region. Australian Journal of Experimental Agriculture, 35 (3), 285-295. doi: 10.1071/EA9950285
Fordyce, G. and Cooper, N. J. (1995). An evaluation of visual assessment for fertility in Brahman cross cows using the Bonsma technique. Theriogenology, 43 (2), 495-507. doi: 10.1016/0093-691X(94)00042-S
Fordyce, G., Loxton, I. D., Holroyd, R. G. and Mayer, R. J. (1993). The performance of Brahman-Shorthorn and Sahiwal-Shorthorn cattle in the dry tropics of northern Queensland. 4. Postweaning growth and carcass traits. Australian Journal of Experimental Agriculture, 33 (5), 531-539. doi: 10.1071/EA9930531
Fordyce, G., James, T. A., Holroyd, R. G., Beaman, N. J., Mayer, R. J. and O' Rourke, P. K. (1993). The performance of Brahman-Shorthorn and Sahiwal-Shorthorn beef cattle in the dry tropics of northern Queensland. 3. Birth weights and growth to weaning. Australian Journal of Experimental Agriculture, 33 (2), 119-127. doi: 10.1071/EA9930119
Fordyce, G., Saithanoo, S. and Goddard, M. E. (1988). Factors affecting mature size and dry-season weight loss in Bos indicus cross cows in northern Queensland. Australian Journal of Agricultural Research, 39 (6), 1169-1180. doi: 10.1071/AR9881169
Conference Papers
Copley, J.P., Corbet, N.J., Allen, J.M., Laing, A.R., Fordyce, G., McGowan, M.R., Burns, B.M., Lyons, R.E. and Hayes, B.J. (2022). Understanding the genetics of fertility and temperament in Northern beef cattle using genomic technologies. 12th World Congress on Genetics Applied to Livestock Production (WCGALP), Rotterdam, The Netherlands, 3-8 July 2022. Wageningen, The Netherlands: Wageningen Academic Publishers. doi: 10.3920/978-90-8686-940-4_650
Hayes, B.J., Copley, J., Dodd, E., Ross, E.M. and Fordyce, G. (2022). Multi-breed genomic predictions from commercial crossbred data. 12th World Congress on Genetics Applied to Livestock Production (WCGALP), Rotterdam, Netherlands, 3-8 July 2022. Wageningen, Netherlands: Wageningen Academic Publishers. doi: 10.3920/978-90-8686-940-4_178
Copley, J.P., Engle, B.N., Speight, S., Fordyce, G., Ross, E.M., Voss-Fels, K.P. and Hayes, B.J. (2021). Assessing the relationship between beef cattle fertility traits and novel environmental descriptors in northern Australia. 24th Association for the Advancement of Animal Breeding and Genetics Conference, Online, 2-4 November 2021. Armidale, NSW Australia: Association for the Advancement of Animal Breeding and Genetics.
Copley, J., Engle, B., Ross, E., Landmark, S., Fordyce, G., Burns, B. and Hayes, B. (2021). Factors affecting fertility in northern Australian beef herds. 33rd Biennial Conference of the Australian Association of Animal Sciences, Fremantle, WA, Australia and online, 1-3 February 2020. Toowong, QLD, Australia: Australian Association of Animal Sciences.
Silva, Luis F.P, Muller, Jarud and Fordyce, Geoffry (2020). Delay in Progesterone Decline Before Parturition is Connected with Failure of Passive Immune Transfer in Tropical Composite Beef Calves. The Third International Tropical Agriculture Conference TropAg 2019 , Brisbane, QLD Australia, 11-13 November 2019. Basel, Switzerland: MDPI. doi: 10.3390/proceedings2019036169
Muller, Jarud, Silva, Luis Prada e and Fordyce, Geoffry (2020). Milk delivery in tropically-adapted neonatal beef calves. The Third International Tropical Agriculture Conference TropAg 2019 , Brisbane, QLD Australia, 11-13 November 2019. Basel, Switzerland: MDPI. doi: 10.3390/proceedings2019036126
Silva, Luis F. P., Muller, Jarud, Cavalieri, John and Fordyce, Geoffry (2019). Prepartum Supplementation to Improve Transfer of Passive Immunity and Growth. The Third International Tropical Agriculture Conference TropAg 2019 , Brisbane, QLD Australia, 11-13 November 2019. Basel, Switzerland: MDPI. doi: 10.3390/proceedings2019036007
Cowley, Robyn, McCosker, Kieren D., Pahl, Lester, Smith, Dave, Whish, Giselle, Wooderson, Melissa, Fordyce, Geoffry, Holloway, Christopher, Jenner, Dale and Materne, Christopher (2019). Finding the ‘Sweet Spot’ for reproductive performance in north Australian beef herds. Northern Beef Research Update Conference, Brisbane, QLD Australia, 19-22 August 2019. Brisbane, QLD Australia: North Australian Beef Research Council.
Engle, B., Corbet, N., Allen, J., Laing, A., Fordyce, G., McGowan, M., Burns, B. and Hayes, B. (2018). Accuracy of multi-trait genomic predictions for age at puberty in Northern Australian beef heifers. 2018 ASAS-CSAS Annual Meeting and Trade Show, Vancouver, Canada, 8-12 July 2018. Cary, NC, United States: Oxford University Press (OUP). doi: 10.1093/jas/sky404.231
Smith, David, McCosker, Kieren, Fordyce, Geoff and McGowan, Michael (2016). High prevalence of low body condition of north Australian cows. Northern Beef Research Update Conference, Rockhampton, QLD Australia, 15-18 August 2016.
Burns, B. M., Corbet, N. J., Allen, J. M., Laing, A. R., Sullivan, M. T., Fordyce, G., Braithwaite, I. D., Williams, P., Bertram, J. D., Lyons, R. E., McGowan, M. R. and Holland, M. K. (2015). Next gen beef breeding strategies for the northern Australian beef industry. AVA/NZVA Pan Pacific Conference, Brisbane, QLD, Australia, 24-29 May 2015. St Leonards, NSW, Australia: Australian Veterinary Association.
Fordyce, G., McGowan, M. R., Smith, D. R., Moravek, T. and Holzwart, M. (2015). What's the right question?. TropAg2015, Brisbane, QLD, Australia, 16-18 November 2015.
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.
Anderson, Angela, Fordyce, Geoffrey and Olchowy, Tim (2014). Contrasting multiple regression and random coefficients regression to determine predictors of calf hydration. Australasian Applied Statistics, Port Lincoln, Australia, 1-5 December 2014.
Fordyce, Geoffry, McGowan, Michael, McCosker, Kieren and Burns, Brian (2014). Foetal and calf loss in extensively managed beef cattle. 28th World Buiatrics Congress, Cairns, Australia, 27 July-1 August 2014. Eight Mile Plains, Qld. Australian: Australian Veterinary Association.
Fordyce, Geoffry, McGowan, Michael, McCosker, Kieren and Burns, Brian (2014). Reproductive wastage in extensively-managed beef cattle. WBC 2014: XXVIII World Buiatrics Congress, Cairns, QLD Australia, 27 July-1 August 2014. Saint Leonards, NSW Australia: Australian Veterinary Association.
Fordyce, Geoffry, McGowan, Michael, McCosker, Kieren and Smith, David (2014). Live weight production in extensively-managed beef breeding herds. 28th World Buiatrics Congress, Cairns, QLD Australia, 27 July - 1 August 2014. Eight Mile Plains, QLD Australia: Australian Veterinary Association.
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.
McBryde, K., Pilkington, R., Fordyce, G., Smith, D. R. and Limburg, N. (2013). Measuring milk yield in beef cattle. Northern Beef Research Update Conference, Cairns, QLD Australia, 12-15 August 2013. North Australian Beef Research Council.
Tambunan, R. D., Suminah, Mayberry, D. E., Fordyce, G. and Poppi, D. P. (2013). Reproductive performance of Brahman cows kept by smallholder farmers in Indonesia. Northern Beef Research Update Conference, Cairns, QLD Australia, 12-15 August 2013. North Australian Beef Research Council.
Burns, B. M., Corbet, N., Allen, J. M., Laing, A. R., Grant, T., Sullivan, M.., Fordyce, G.., Braithwaite, I., Williams, P., Bertram, J., Piper, E., McGowan, M. R. and Holland ,M. K. (2013). Next gen beef breeding strategies for the northern Australian beef industry. Northern Beef Research Update Conference, Cairns, QLD Australia, 12 - 15 August 2013. North Australian Beef Research Council.
Fordyce, G. (2013). Bull selection and management for natural mating of beef herds. VIII Jornado NESPRO: International Symposium on Beef Cattle Production Systems, Porto Alegre, RS, Brazil, 24-26 September, 2013.
Fordyce, G., McCosker, K. D. and McGowan, M. R. (2013). Advances in reproductive management of cow-calf nutrition in times of crises. VIII Jornado NESPRO: International Symposium on Beef Cattle Production Systems, Porto Alegre, RS, Brazil, 24-26 September, 2013.
Fordyce, Geoffry, McGowan, Michael, Lisle, Allan, Allen, Jack and Duff, Christian (2013). Normal range for scrotal circumference of Australian beef bulls. Australian Cattle Veterinarians 2013 Conference, Darwin, Australia, 25-28 June 2013. Eight Mile Plains, QLD, Australia: Australian Cattle Veterinarians.
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.
McGowan, M., Muller, T., Lisle, A., Fordyce, G., Holroyd, R. and Doogan, V. (2012). Recommended minimum scrotal circumference for tropically-adapted beef bulls in northern Australia. 17th International Congress on Animal Reproduction (ICAR), Vancouver Canada, 29 July - 2 August 2012. Berlin, Germany: Wiley-Blackwell.
McGowan, Michael R., Fordyce, Geoffry and Holroyd, Richard G. (2011). Recent advances in beef cattle reproduction - How science will improve herd performance. 2011 Northern Beef Research Update Conference, Darwin, Australia, 3 - 4 August 2011. Park Ridge, Qld., Australia: North Australia Beef Research Council.
Affandhy, L., Dikman, D.M., Wahyudi, T., Cahyono, D.B., Mayberry, D.E., Fordyce, G. and Poppi, D.P. (2011). Reproductive performance of Ongole cows in Indonesian villages. Northern Beef Research Update Conference, Darwin, NT, Australia, 3-4 August 2011. Park Ridge, Qld, Australia: North Australia Beef Research Council.
McCosker, Kieren, Fordyce, Geoffry, Smith, David, Burns, Brian, Jephcott, Sandi and McGowan, Michael (2011). Survey of selected north Australian beef breeding herds. 1. Management.. Northern Beef Research Update Conference, Esplande, Darwin, Australia, 3–4 August 2011. Park Ridge, Qld., Australia: North Australia Beef Research Council.
McCosker, Kieren, Butler, Sophia, Smith, David, Fordyce, Geoffry, Burns, Brian, Jephcott, Sandi and McGowan, Michael (2011). Survey of selected north Australian beef breeding herds. 4. Vaccination to control reproductive loss. Northern Beef Research Update Conference, Darwin, NT, Australia, 3-4 August 2011. Park Ridge, QLD, Australia: North Australia Beef Research Council.
McGowan, Michael, McCosker, Kieren, Smith, David, Fordyce, Geoffry, Burns, Brian, Jephcott, Sandi, Newsome, Tom, Menzies, Don and Kirkland, Peter (2011). Survey of selected north Australian beef breeding herds. 6. Prevalence of bovine pestivirus infection. Northern Beef Research Update Conference, Darwin, NT, Australia, 3-4 August 2011. Park Ridge, QLD, Australia: North Australia Beef Research Council.
Fordyce, Geoffry, Murphy, Charles P., Corbet, Nicholas and Broad, Kiri (2011). Using ultrasound to measure carcass fat depth in live animals. Northern Beef Research Update Conference, Darwin, NT, Australia, 3–4 August 2011. Park Ridge, Qld., Australia: North Australia Beef Research Council.
Hutchinson, Lisa, Fordyce, Geoffry, Williams, Paul and Grant, Tim (2011). Brahman teat and udder score changes during lactation. Northern Beef Research Update Conference, Esplande, Darwin, Australia, 3–4 August 2011. Park Ridge, Qld., Australia: North Australia Beef Research Council.
Fordyce, G (2011). Male abnormalities in the tropics. North Queensland conference of the Australian Veterinary Association, Townsville, QLD, Australia, 25-27 March 2011.
Hawken, R. J., Zhang, Y. M., Fortes, M. R. S., Collis, E., Reverter, A., Barris, W.C., Fordyce, G., Holroyd, R. G., Tier, B., Burrow, H.M. and Lehnert, S. A. (2011). Dissecting the genetics underlying reproduction rate in tropically adapted beef cattle. Applied Genomics for Sustainable Livestock Breeding, Melbourne, Australia, 2-5 May 2011.
Burns, B. M., Herring, A. D., Allen, J. M., McGowan, M. R., Holland, M., Braithwaite, I. and Fordyce, G. (2011). Genetic strategies for improved beef production in challenging environments such as northern Australia and related implications for the southern United States. 57th Texas A&M Beef Cattle Short Course, College Station, TX, United States, 1-3 August 2011.
Ardila, Andres, McCosker, Kieren, Smith, David, Fordyce, Geoffry, Burns, Brian, Newsome, Tom, Menzies, Don, Jephcott, Sandi, Greer, Ristan, Boe-Hansen, Gry and McGowan, Michael (2011). Survey of selected north Australian beef breeding herds. 5. Prevalence of Campylobacter fetus subsp. venerealis infection. Northern Beef Research Update Conference, Darwin, NT Australia, 3–4 August 2011. Park Ridge, QLD Australia: North Australia Beef Research Council.
Schatz, Tim, McCosker, Kieren, Fordyce, Geoffry and McGowan, Michael (2011). Predicting pregnancy rates from pre-calving body condition score of first-lactation Brahmans. Northern Beef Research Update Conference, Darwin, NT Australia, 3-4 August 2011. Park Ridge, QLD Australia: North Australia Beef Research Council.
Smith, David, McCosker, Kieren, Butler, Sophia, Fordyce, Geoffry, Burns, Brian, Jephcott, Sandi and McGowan, Michael (2011). Survey of selected north Australian beef breeding herds. 3. Bull selection and management. Northern Beef Research Update Conference, Darwin, NT Australia, 3-4 August 2011. Park Ridge, QLD Australia: North Australia Beef Research Council.
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.
Burns, B. M., Herring, A. D., Laing, A., Fordyce, G., Bertram, J., Grant, T. and Hiendleder, S. (2010). Unrecognized variation in gestation length and birth weight of Droughtmaster calves produced through fixed-time AI. Ruminant Reproduction 2010: 8th International Ruminant Reproduction Symposium, Anchorage, AK, U.S.A., 3-7 September 2010. Thrumpton, Nottingham, U.K.: Nottingham University Press.
Matthews, R. A,, Fordyce, G, and Poppi, D. P. (2008). Nutritional management of skeletal bone growth in cattle in the dry tropics. Australian and New Zealand Societies of Animal Production First Joint Conference (2008 ANZSAP), St. Lucia, Queensland, 23 - 27 June 2008. St. Lucia, Brisbane, Australia: Australian Society of Animal Production.
Lew A.E.,, Venus B.,, Wlodek B.,, Guo S-Y.,, Fordyce G.,, Moolhuijzen P.,, Bellgard M.I.,, Coleman G.,, Trott, D.,, Burrell P.,, Ellis J.T.,, Corney, B. and Jorgensen, W.K. (2007). Improved detection of bovine reproductive disease pathogens.. World Association of Veterinary Laboratory Diagnosticians – 13th International Symposium,, Melbourne, Australia, 12-14 November 2007,.
Lew, A. E., Fordyce, G., Doogan, V., McMillen, L., Bertram, J., Holroyd, D. and Venus, B. (2006). New diagnostic options: Vibrio and Trich. Australian Cattle Veterinarians Conference (ACV, 2006), Port Macquarie, NSW, Australia, 16-9 November 2006. Eight Mile Plains, QLD, Australia: Australian Cattle Veterinarians.
Fordyce, Geoffry, Panjaitan, Tanda and Poppi, Dennis (2003). Management to facilitate genetic improvement of Bali cattle in Eastern Indonesia. Workshop on Strategies to Improve Bali Cattles in Eastern Indonesia, Bali, Indonesia, 4-7 February 2002. Canberra, Australia: Australian Centre for International Agricultural Research.
McGowan, M. R., Holroyd, R. G., Fordyce, J. D., Bertram, J. D., Fitzpatrick, L. A., Doogan, V. J., Defaveri, J., Vankan, D. M., Jayawardhana, G. A. and Miller, R. G. (2000). Selection and management of Bos indicus bulls in multiple-sire mated herds in northern Australia. Droughtmaster Breeders' Society 7th Annual Summer Seminar, Brisbane, Australia, January 23, 2000. Brisbane, Australia:
D'Occhio, M. J., Fordyce, G., Whyte, T. R., Aspden, W. J. and Trigg, T. E. (2000). Reproductive responses of cattle to GnRH agonists. 14th International Congress on Animal Reproduction - Research and Practice II, Stockholm Sweden, 2-6 July 2000. doi: 10.1016/S0378-4320(00)00078-6
McGowan, M. R., Holroyd, R. G., Fordyce, G.J.D., Bertram, J. D., Fitzpatrick, L. A., Doogan, V. J., Defaveri, J., Vankan, D. M., Jayawardhana, G. A. and Miller, G. (1999). Seleccion y manejo de grupos de toros Bos indicus en servicio en el norte de Australia. Cordoba, Argentina, 19-21 June,1999. Cordoba, Argentina: Instituto De Reproduccion Animal Cordoba (IRAC).
Holroyd, R. G., Doogan, V. J., DeFaveri, J., Fordyce, G., McGowan, M. R., Bertram, J. D., Vankan, D. M., Fitzpatrick, L. A., Jayawardhana, G. A. and Miller, R. G. (1998). Bull Selection and use in northern Australia. 6. Calf output and predictors of fertility of bulls in multiple-sire herds. XX World Association for Buiatrics Congress, Sydney, Australia, 6-10 July 1998. Indooroopilly, Qld., Australia: Australian Association of Cattle Veterinarians.
Research Reports
Fordyce, Geoffry, Dalgleish, Neil, Waldron, Scott, van der Fliert, Elske, da Costa Varela, Calisto, Coimbra, Latino, Talo Mali, Celestino Goncalves, Yuliaty, Corriea, Vicente de Paulo, do Rego, Adelino, de Almeida, Alipio, Amaral, Acacio and Thorne-George, Eric (2017). Enhancing smallholder cattle production in East Timor, Final report, Project LPS.2009.036. Canberra, ACT Australia: Australian Centre for International Agricultural Research.
Waldron, Scott, de Paulo Correia, Vincente, Mulik, Marthen, de Rego, Adelino, da Costa Varela, Calisto, Fordyce, Geoff, Thorne-George, Eric, Dalgliesh, Neal, Quigley, Simon and van de Fliert, Elske (2016). Sub-sector analysis of the Timor Leste Beef Industry, Report for ACIAR Project LPS-2009-036 Enhancing smallholder beef production in Timor Leste. Canberra, ACT, Australia:
McGowan, M. R., Edwards, S., Vankan, D., Portoneto, L., Chandra, K., Satake, N., Boehansen, G., Burns, B., Fordyce, G., Bo, G., Atkinson, P. and Braithwaite, I. (2015). Strategies to increase the adoption of AI in northern Australian tropical beef genotype herds: final report. North Sydney, NSW, Australia: Meat & Livestock Australia Limited.
Department Technical Reports
Lane, Joe, Jubb, Tristan, Shepherd, Richard, Webb-Ware, Jjohn and Fordyce, Geoffry (2015). Priority list of endemic diseases for the red meat industries. Final Report. B.AHE.0010. Meat and Livestock Australia.
Fordyce, Geoffry, McMillan, Helen and McGrath, Nicky (2014). Accelerating healing of calf frontal sinuses exposed by dehorning. B.AWW.0227. QAAFI, The University of Queensland.
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.
Fordyce, Geoffrey (2011). Swan’s Lagoon: Celebrating 50 years. Department of Employment, Economic Development and Innovation, Queensland Government, Brisbane.