Dr Karen Harper
Research Fellow
School of Agriculture and Food Sciences
+61 7 54601 159
Book Chapter
Harper, Karen J. and Tait, L. Amy (2019). Livestock industries in Australia: production systems and management. Livestock: production, management strategies and challenges. (pp. 79-136) edited by Victor Roy Squires and Wayne L. Bryden. Hauppauge, NY, United States: Nova Science Publishers.
Journal Articles
Parra, M. C., Costa, D. F. A., Palma, A. S. V., Camargo, K. D. V., Lima, L. O., Harper, K. J., Meale, S. J. and Silva, L. F. P. (2021). The use of live yeast to increase intake and performance of cattle receiving low-quality tropical forages. Journal of Animal Science, 99 (2) skab017, 1-13. doi: 10.1093/jas/skab017
Fulkerson, William J., Jennings, Nathan R., Callow, Mark, Harper, Karen J., Wong, Percy T.W. and Martin, Peter M. (2021). Selection for resistance to fungal diseases and other desirable traits in kikuyu grass (Cenchrus clandestinus). Tropical Grasslands-Forrajes Tropicales, 9 (1), 60-69. doi: 10.17138/tgft(9)60-69
Poppi, D. P., Gunawan, Antari, R. and Harper, K. J. (2020). Strategies to improve local beef cattle industry supply chains during the pandemic of Covid-19. Prosiding seminar nasional eknologi Peternakan dan Veteriner.
Retnaningrum, S., Kusmartono, , Mashudi, , Harper, K.J. and Poppi, D.P. (2020). Formulating rations with cassava meal to promote high live weight gain in crossbred Limousin bulls. Animal 100125, 1-7. doi: 10.1016/j.animal.2020.100125
Setiadi, Deni, Kasmiati, Kasmiati, Zakariya, Abu Z., Harper, Karen and Poppi, Dennis (2020). Cassava-based diets increase live weight gain of cross bred bulls in small fattening systems in Malang, East Java. Proceedings, 36 (1) 214, 1-1. doi: 10.3390/proceedings2019036214
Sulendre, I Wayan, Marsetyo, Marsetyo, Takdir, Muh, Harper, Karen and Poppi, Dennis Paulus (2020). High level of energy and protein supplementation effect on feed intake and liveweight gain of Bali bulls fed elephant grass. Proceedings, 36 (1) 91, 1-2. doi: 10.3390/proceedings2019036091
Le, Oanh T., Dart, Peter J., Harper, Karen, Zhang, Dagong, Schofield, Benjamin, Callaghan, Matthew J., Lisle, Allan T., Klieve, Athol V. and McNeill, David M. (2017). Effect of probiotic Bacillus amyloliquefaciens strain H57 on productivity and the incidence of diarrhoea in dairy calves. Animal Production Science, 57 (5), 912-919. doi: 10.1071/AN15776
O'Hara, Patricia J., Klieve, Athol V., Murray, Peter J., Maguire, Anita J., Ouwerkerk, Diane and Harper, Karen (2016). Effect of time and diet change on the bacterial community structure throughout the gastrointestinal tract and in faeces of the northern brown bandicoot, Isoodon macrourus. Australian Journal of Zoology, 64 (1), 48-60. doi: 10.1071/ZO15078
Harper, Karen J. and McNeill, David M. (2015). The role iNDF in the regulation of feed intake and the importance of its assessment in subtropical ruminants systems (The role of iNDF in the regulation of forage intake). Agriculture, 5 (3), 778-790. doi: 10.3390/agriculture5030778
Conference Papers
Lwin, D.S., Barber, D. , Benvenutti, M., Williams, B. , Poppi, D. and Harper, K. (2021). Variation of nutritional parameters in the strata of tropical forages. 33rd Biennial Conference of the Australian Association of Animal Sciences, Fremantle, Australia, 1-3 February 2021. Australian Association of Animal Sciences.
Parra, M.C. , Camargo, K.D.V. , Costa, D.F.A. , Harper, K.J. , Meale, S.J. and Silva, L.F.P. (2021). Live yeast increased the rate of feed digestion in cattle fed a protein deficient diet. 33rd Biennial Conference of the Australian Association of Animal Sciences, Fremantle, Australia, 1-3 February 2021.
Setiadi, D., Kusmartono, , Kasmiyati, , Mashudi, , Zakariya, A. Z., Harper, K. J. and Poppi, D. P. (2020). The Weight Gain and Growth of Crossbred Bulls Fed Locally Inspired Supplements Compared with Current Feeding Systems in Village Smallholdings in Malang, East Java. Animal Production International Seminar, Malang, Indonesia, 24-27 October 2019. Bristol, United Kingdom: Institute of Physics Publishing. doi: 10.1088/1755-1315/478/1/012037
Retnaningrum, S., Kusmartono, , Mashudi, , Harper, K. J. and Poppi, D. (2020). Effect of using different levels of cassava meal on nutrient intake, fiber digestibility and body condition score in crossbreed Limousin bulls. Animal Production International Seminar, Malang, Indonesia, 24-27 October 2019. Bristol, United Kingdom: Institute of Physics Publishing. doi: 10.1088/1755-1315/478/1/012065
Setiadi, Deni, Kasmiati, Kasmiati, Zakariya, Abu Z., Harper, Karen and Poppi, Dennis (2020). Cassava-Based Diets Increase Live Weight Gain of Cross Bred Bulls in Small Fattening Systems in Malang, East Java. TropAg 2019, Brisbane, QLD Australia, 11-13 November 2019. Basel, Switzerland: MDPI. doi: 10.3390/proceedings2019036214
Asrianto, N., Andarwati, S., Nurtini, S., Putridinanti, A. D., Gunawan, Harper, K. and Poppi, D. (2019). Increased of farmer's income through use cassava as main ingredient of beef cattle concentrate feed in Playen Subdistrict, Gunungkidul, Yogyakarta. The 8th International Seminar on Tropical Animal Production, Yogyakarta, Indonesia, 23-25 September 2019. Yogyakarta, Indonesia: Universitas Gadjah Mada.
Marsetyo, Marsetyo, Sulendre, I.Wayan, Takdir, Moh, Harper, Karen and Poppi, Dennis (2019). Feed intake and liveweight gain of Bali bulls fed low quality forage supplemented wit increasing levels of cassava and gliricidia. International Symposium on Ruminant Physiology, Leipzig, Germany, 3-6 September 2019. Cambridge, United Kingdom: Cambridge University Press.
Kusmartono, K., Surya, Retnaningrum, Mashudi, M., Harper, Karen and Poppi, Dennis (2019). Response of growing bulls to increasing levels of cassava meal in a concentrate maize stover diet. International Symposium on Ruminant Physiology, Leipzig, Germany, 3-6 September 2019. Cambridge, United Kingdom: Cambridge University Press.
Harper, Karen , Zulu, Bonna, Isherwood, Peter and Poppi, Dennis (2019). The rate of disappearance of Hydrocyanic Acid (HCN) from cassava plant parts under drying or silage processing methods. International Symposium on Ruminant Physiology, Leipzig, Germany, 3-6 September 2019. Cambridge, United Kingdom: Cambridge University Press. doi: 10.1017/S2040470019000037
Putridinanti, A. D., Noviandi, C. T., Gunawan, Agus, A., Harper, K. and Poppi, D. (2019). A comparison of three highly fermentable carbohydrate sources (corn, cassava powder or cassava pulp) on in vitro digestion. The 8th International Seminar on Tropical Animal Production, Yogyakarta, Indonesia, 23–25 September 2019. Bristol, United Kingdom: Institute of Physics Publishing. doi: 10.1088/1755-1315/387/1/012106
Harper, Karen, Quigley, Simon P., Antari, Risa, Dahlanuddin,, Panjaitan, Tanda Sahat, Marsetyo, and Poppi, Dennis P. (2019). Energy supplements for leucaena. International Leucaena Conference (ILC), Brisbane, Australia, 29 October-3 November 2018. Cali, Colombia: Centro Internacional de Agricultura Tropical (CIAT). doi: 10.17138/TGFT(7)182-188
Mardiyanto, Mohammad , Subagio, A. , Poppi, D. and Harper, K. (2018). Effect of drying and withering process on cyanate content of cassava plant parts. International seminar on livestock production and veterinary technology, Puslitbangnak, Medan, Indonesia, 16-18 October 2018.
Harper, Karen, Panjaitan, Tanda, Gulino, Lisa-Maree, Quigley, Simon, Klieve, Athol, Ouwerker, Dianne and Poppi, Dennis (2018). The relationship between efficiency of microbial crude protein production and rumen microbial community structure in steers fed tropical pastures. International Symposium on the Nutrition of Herbivores, Clermont-Ferrand, France, 2-6 September 2018. Cambridge, United Kingdom: Cambridge University Press.
Poppi, D. P., Marsetyo, Quigley, S. P., Mayberry, D. E., Cowley, F., Harper, K. J. and McLennan, S. R. (2017). Bridging the gap: strategies to increase live weight gain and profitability in beef cattle in Indonesia. The 5th International Seminar of Animal Nutrition and Feed Sciences, Mataram, Indonesia, 7-19 November, 2017. Bogor, Indonesia: Indonesian association of nutrition and feed scientists.
Harper, K. J., Isherwood, P., Barber, D., Callow, M., McNeill, D. M. and Poppi, D. P. (2014). Prediction of iNDF of subtropical forages by near infrared reflectance spectroscopy. Herbivores 2014: 1st Joint International Symposium on the Nutrition of Herbivores / International Symposium on Ruminant Physiology (Joint ISNH/ISRP International Conference 2014) held in conjunction with the 30th Biennial Conference of the Australian Society of Animal Production, Canberra, ACT, Australia, 8-12 September, 2014. Toowong, QLD, Australia: The Australian Society of Animal Production.
Harper, K. J. and McNeill, D. M. (2014). Direct in vitro measurement of indigestible neutral detergent fibre to improve the prediction of milk production from subtropical forages. MODNUT 2014: 8th International Workshop: Modelling Nutrient Digestion and Utilization in Farm Animals, Cairns, QLD, Australia, 15-17 September, 2014. Clayton, VIC, Australia: C S I R O Publishing. doi: 10.1071/ANv54n12abstracts
Harper, K. J., Barber, D., Callow, M., McNeill, D. M and Poppi, D. P. (2014). Assessment of the iNDF of subtropical pastures. Herbivores 2014: 1st Joint International Symposium on the Nutrition of Herbivores / International Symposium on Ruminant Physiology (Joint ISNH/ISRP International Conference 2014) held in conjunction with the 30th Biennial Conference of the Australian Society of Animal Production, Canberra, ACT, Australia, 8-12 September, 2014. Toowong, QLD, Australia: The Australian Society of Animal Production.
Harper, K. J., Costa, D .F. A., Gulino, L.-M., Klieve, A. V., McLennan, S. R., Quigley, S. P. and Poppi, D. P. (2013). The association between liveweight gain and rumen microbial diversity in cattle. Northern Beef Research Update Conference 2013, Cairns, QLD, Australia, 12-15 August, 2013.
Harper, K. J., Panjaitan, T., Gulino, L.-M., Kleive, A. V., Quigley, S. P. and Poppi, D. P. (2013). The effects of spirulina algae supplementation on the rumen microbial community of beef cattle. Northern Beef Research Update Conference 2013, Cairns, QLD, Australia, 12-15 August, 2013.
Faizah, H. M. S., Maguire, A., Harper, K., Sultan, A., Li, X., Klieve, A. V. and Bryden, W. L. (2011). Caecal microflora composition of broilers fed sorghum diets containing feed enzymes. Annual Australian Poultry Science Symposium, Sydney, Australia, 14-16 February 2011. Camden, NSW, Australia: Poultry Research Foundation.
Harper, K. J., Klieve, A.V., Panjaitan, T., Poppi, D. P. and Ouwerkerk, D. (2010). Changes in the rumen bacterial community in steers fed with supplemented tropical pasture. 28th Biennial Conference of the Australian Society of Animal Production, Armidale, N.S.W., Australia, 11-15 July 2010. Parkridge, Qld., Australia: Australian Society of Animal Production.
Thesis
Karen Harper (2011). The association between rumen microbial protein production with rumen microbial community structure.. PhD Thesis, School of Agriculture and Food Sciences, The University of Queensland.