Dr Mark Geier

Dr Mark Geier

Senior Advisor: Competitive Funding

Research Services

Research and Innovation

I am a Senior Grant Support Officer within the Research Projects Development Team in URO. I am available to assist researchers with the preparation and submission of funding applications, particularly for ARC, NHMRC and MRFF.
I joined UniSA in 2014. Prior to then I completed a PhD in Physiology (University of Adelaide) and worked as a postdoctoral researcher for over 5 years. I have published more than 40 journal articles and book chapters and have supervised a number of postgraduate students. I have received research funding from a range of sources, including RIRDC, Cooperative Research Centres, and industry.

Year Citation
2024 Kartikasari, L. R., Geier, M. S., Hughes, R. J., Bastian, S. E. P., & Gibson, R. A. (2024). Omega-3 content and sensory evaluation of scrambled eggs from two strains of laying hens fed diets enriched with alpha-linolenic acid. Journal of the Indonesian Tropical Animal Agriculture, 49(1), 16-28.
DOI Scopus1
2024 Kartikasari, L. R., Geier, M. S., Hughes, R. J., Bastian, S. E. P., & Gibson, R. A. (2024). Assessment of omega-3 and omega-6 fatty acid profiles and ratio of omega-6/omega-3 of white eggs produced by laying hens fed diets enriched with omega-3 rich vegetable oil. Open Agriculture, 9(1), 20220274-1-20220274-8.
DOI Scopus3 WoS3
2021 Kartikasari, L. R., Hughes, R. J., Geier, M. S., & Gibson, R. A. (2021). Decreased Omega-3 Long-Chain Polyunsaturated Fatty Acid and Total Omega-3 Polyunsaturated Fatty Acid Content of Chicken Meat Fed Diets High in Linoleic Acid to Alpha-Linolenic Acid Ratio. Iranian Journal of Applied Animal Science, 11(4), 817-825.
Scopus3 WoS2
2021 Kartikasari, L. R., Geier, M. S., Hughes, R. J., Bastian, S. E. P., & Gibson, R. A. (2021). Omega-3 fatty acid levels and sensory quality of eggs following consumption
of alpha-linolenic acid enriched diets. Food Research, 5(S2), 57-64.
DOI Scopus6
2019 Yazbeck, R., Lindsay, R. J., Geier, M. S., Butler, R. N., & Howarth, G. S. (2019). Prebiotics Fructo-, Galacto-, and Mannan-Oligosaccharide Do Not Protect against 5-Fluorouracil-Induced Intestinal Mucositis in Rats.. The Journal of nutrition, 149(12), 2164-2173.
DOI Scopus21 WoS19 Europe PMC16
2017 Crisol-Martínez, E., Stanley, D., Geier, M., Hughes, R., & Moore, R. (2017). Understanding the mechanisms of zinc bacitracin and avilamycin on animal production: linking gut microbiota and growth performance in chickens. Applied Microbiology and Biotechnology, 101(11), 4547-4559.
DOI Scopus97 WoS95 Europe PMC78
2017 Crisol-Martínez, E., Stanley, D., Geier, M., Hughes, R., & Moore, R. (2017). Sorghum and wheat differentially affect caecal microbiota and associated performance characteristics of meat chickens. PeerJ, 5(3), e3071-1-e3071-20.
DOI Scopus26 WoS22 Europe PMC16
2016 Stanley, D., Hughes, R., Geier, M., & Moore, R. (2016). Bacteria within the gastrointestinal tract microbiota correlated with improved growth and feed conversion: challenges presented for the identification of performance enhancing probiotic bacteria. Frontiers in Microbiology, 7(article no. 187), 187-1-187-13.
DOI Scopus212 WoS212 Europe PMC182
2016 Carragher, J., Muhlhausler, B., Geier, M., House, J., Hughes, R., & Gibson, R. (2016). Effect of dietary ALA on growth rate, feed conversion ratio, mortality rate and breast meat omega-3 LCPUFA content in broiler chickens. Animal Production Science, 56(5), 815-823.
DOI Scopus20 WoS15
2016 Wang, H., Geier, M., & Howarth, G. (2016). Prebiotics: a potential treatment strategy for the chemotherapy-damaged gut?. Critical Reviews in Food Science and Nutrition, 56(6), 946-956.
DOI Scopus24 WoS24 Europe PMC17
2015 Stanley, D., Geier, M., Chen, H., Hughes, R., & Moore, R. (2015). Comparison of fecal and cecal microbiotas reveals qualitative similarities but quantitative differences. BMC Microbiology, 15(1), 51-1-51-11.
DOI Scopus178 WoS168 Europe PMC150
2015 Rodgers, N. J., Swick, R. A., Geier, M. S., Moore, R. J., Choct, M., & Wu, S. B. (2015). A multifactorial analysis of the extent to which eimeria and fishmeal predispose broiler chickens to necrotic enteritis. Avian Diseases, 59(1), 38-45.
DOI
2014 Gregory, M., Geier, M., Gibson, R., & James, M. (2014). Effect of dietary canola oil on long-chain omega-3 fatty acid content in broiler hearts. Journal of Animal Physiology and Animal Nutrition, 98(2), 235-238.
DOI Scopus5 WoS3
2013 Stanley, D., Geier, M., Hughes, R., Denman, S., & Moore, R. (2013). Highly variable microbiota development in the chicken gastrointestinal tract. PLoS One, 8(12), 1-7.
DOI Scopus225 WoS225 Europe PMC190
2013 Konsak, B., Stanley, D., Haring, V., Geier, M., Hughes, R., Howarth, G., . . . Moore, R. (2013). Identification of differential duodenal gene expression levels and microbiota abundance correlated with differences in energy utilisation in chickens. Animal Production Science, 53(12), 1269-1275.
DOI Scopus17 WoS17
2013 Stanley, D., Geier, M., Denman, S., Haring, V., Crowley, T., Hughes, R., & Moore, R. (2013). Identification of chicken intestinal microbiota correlated with the efficiency of energy extraction from feed. Veterinary Microbiology, 164(1-2), 85-92.
DOI Scopus165 WoS158 Europe PMC132
2013 Gregory, M., Geier, M., Gibson, R., & James, M. (2013). Functional characterization of the chicken fatty acid elongases. Journal of Nutrition, 143(1), 12-16.
DOI Scopus66 WoS66 Europe PMC47
2012 Kartikasari, L., Hughes, R., Geier, M., Makrides, M., & Gibson, R. (2012). Dietary alpha-linolenic acid enhances omega-3 long chain polyunsaturated fatty acid levels in chicken tissues. Prostaglandins Leukotrienes and Essential Fatty Acids, 87(4-5), 103-109.
DOI Scopus79 WoS74 Europe PMC45
2012 Stanley, D., Denman, S., Hughes, R., Geier, M., Crowley, T., Chen, H., . . . Moore, R. (2012). Intestinal microbiota associated with differential feed conversion efficiency in chickens. Applied Microbiology and Biotechnology, 96(5), 1361-1369.
DOI Scopus253 WoS232 Europe PMC185
2012 Prisciandaro, L., Geier, M., Chua, A., Butler, R., Cummins, A., Sander, G., & Howarth, G. (2012). Probiotic factors partially prevent changes to caspases 3 and 7 activation and transepithelial electrical resistance in a model of 5-fluorouracil-induced epithelial cell damage. Supportive Care in Cancer, 20(12), 3205-3210.
DOI Scopus42 WoS34 Europe PMC28
2012 Forder, R., Nattrass, G., Geier, M., Hughes, R., & Hynd, P. (2012). Quantitative analyses of genes associated with mucin synthesis of broiler chickens with induced necrotic enteritis. Poultry Science, 91(6), 1335-1341.
DOI Scopus115 WoS108 Europe PMC91
2012 Atkins, H., Geier, M., Prisciandaro, L., Pattanaik, A., Forder, R., Turner, M., & Howarth, G. (2012). Effects of a lactobacillus reuteri BR11 mutant deficient in the cystine-transport system in a rat model of inflammatory bowel disease. Digestive Diseases and Sciences, 57(3), 713-719.
DOI Scopus14 WoS13 Europe PMC11
2011 Geier, M., Torok, V., Guo, P., Allison, G., Boulianne, M., Janardhana, V., . . . Hughes, R. (2011). The effects of lactoferrin on the intestinal environment of broiler chickens. British Poultry Science, 52(5), 564-572.
DOI Scopus18 WoS14 Europe PMC10
2011 Prisciandaro, L., Geier, M., Butler, R., Cummins, A., & Howarth, G. (2011). Probiotic factors partially improve parameters of 5-fluorouracil-induced intestinal mucositis in rats. Cancer Biology & Therapy, 11(7), 671-677.
DOI Scopus63 WoS64 Europe PMC55
2011 Prisciandaro, L., Geier, M., Butler, R., Cummins, A., & Howarth, G. (2011). Evidence supporting the use of probiotics for the prevention and treatment of chemotherapy-induced intestinal mucositis. Critical Reviews in Food Science and Nutrition, 51(3), 239-247.
DOI Scopus78 WoS74 Europe PMC54
2011 Golder, H., Geier, M., Forder, R., Hynd, P., & Hughes, R. (2011). Effects of necrotic enteritis challenge on intestinal micro-architecture and mucin profile. British Poultry Science, 52(4), 500-506.
DOI Scopus40 WoS39 Europe PMC34
2011 Yazbek, R., Howarth, G., Butler, R., Geier, M., & Abbott, C. (2011). Biochemical and histological changes in the small intestine of mice with dextran sulfate sodium colitis. Journal of Cellular Physiology, 226(12), 3219-3224.
DOI Scopus45 WoS44 Europe PMC40
2011 Yazbek, R., Howarth, G., Borges, L., Geier, M., Smith, C., Davidson, G., & Butler, R. (2011). Non-invasive detection of a palifermin-mediated adaptive response following chemotherapy-induced damage to the distal small intestine of rats. Cancer Biology & Therapy, 12(5), 399-406.
DOI Scopus18 WoS15 Europe PMC13
2010 Geier, M., Mikkelsen, L., Torok, V., Allison, G., Olnood, C., Boulianne, M., . . . Choct, M. (2010). Comparison of alternatives to in-feed antimicrobials for the prevention of clinical necrotic enteritis. Journal of Applied Microbiology, 109(4), 1329-1338.
DOI Scopus50 WoS49 Europe PMC39
2010 Lindsay, R., Geier, M., Yazbek, R., Butler, R., & Howarth, G. (2010). Orally administered emu oil decreases acute inflammation and alters selected small intestinal parameters in a rat model of mucositis. British Journal of Nutrition, 104(4), 513-519.
DOI Scopus60 WoS52 Europe PMC37
2009 Janardhana, V., Broadway, M., Bruce, M., Lowenthal, J., Geier, M., Hughes, R., & Bean, A. (2009). Prebiotics Modulate Immune Responses in the Gut-Associated Lymphoid Tissue of Chickens. Journal of Nutrition, 139(7), 1404-1409.
DOI
2009 Prisciandaro, L., Geier, M., Butler, R., Cummins, A., & Howarth, G. (2009). Probiotics and their derivatives as treatments for inflammatory bowel disease. Inflammatory Bowel Diseases, 15(12), 1906-1914.
DOI Scopus57 WoS54 Europe PMC49
2009 Geier, M., Torok, V., Allison, G., Ophel-Keller, K., Gibson, R., Munday, C., & Hughes, R. (2009). Dietary omega-3 polyunsaturated fatty acid does not influence the intestinal microbial communities of broiler chickens. Poultry Science, 88(11), 2399-2405.
DOI Scopus23 WoS21 Europe PMC14
2009 Geier, M., Torok, V., Allison, G., Ophel-Keller, K., & Hughes, R. (2009). Indigestible carbohydrates alter the intestinal microbiota but do not influence the performance of broiler chickens. Journal of Applied Microbiology, 106(5), 1540-1548.
DOI Scopus58 WoS54 Europe PMC39
2009 Geier, M., Smith, C., Butler, R., & Howarth, G. (2009). Small-Intestinal Manifestations of Dextran Sulfate Sodium Consumption in Rats and Assessment of the Effects of Lactobacillus fermentum BR11. Digestive Diseases and Sciences, 54(6), 1222-1228.
DOI Scopus28 WoS28 Europe PMC26
2008 Smith, C., Geier, M., Yazbek, R., Torres, D., Butler, R., & Howarth, G. (2008). Lactobacillus fermentum BR11 and fructo-oligosaccharide partially reduce jejunal inflammation in a model of intestinal mucositis in rats. Nutrition and Cancer-An International Journal, 60(6), 757-767.
DOI Scopus77 WoS75 Europe PMC61
2008 Howarth, G., Lindsay, R., Butler, R., & Geier, M. (2008). Can emu oil ameliorate inflammatory disorders affecting the gastrointestinal system?. Australian Journal of Experimental Agriculture, 48(10), 1276-1279.
DOI Scopus9 WoS7
2008 Torres, D., Tooley, K., Butler, R., Smith, C., Geier, M., & Howarth, G. (2008). Lyprinol(TM) only partially improves indicators of small intestinal integrity in a rat model of 5-fluorouracil-induced mucositis. Cancer Biology & Therapy, 7(2), 295-302.
DOI Scopus38 WoS33 Europe PMC25
2008 Yazbek, R., Howarth, G., Geier, M., Demuth, H., & Abbott, C. (2008). Inhibiting dipeptidyl peptidase activity partially ameliorates colitis in mice. Frontiers in Bioscience, 13(18), 6850-6858.
DOI Scopus48 WoS47 Europe PMC37
2007 Geier, M., Butler, R., & Howarth, G. (2007). Inflammatory bowel disease: Current insights into pathogenesis and new therapeutic options; probiotics, prebiotics and synbiotics. International Journal of Food Microbiology, 115(1), 1-11.
DOI Scopus153 WoS128 Europe PMC103
2007 Geier, M., Butler, R., Giffard, P., & Howarth, G. (2007). Prebiotic and Synbiotic Fructooligosaccharide administration Fails to Reduce the Severity of Experimental colitis in rats. Diseases of the Colon & Rectum, 50(7), 1061-1069.
DOI Scopus39 WoS35 Europe PMC29
2007 Kamil, R., Geier, M., Butler, R., & Howarth, G. (2007). Lactobacillus rhamnosus GG exacerbates intestinal ulceration in a model of indomethacin-induced enteropathy. Digestive Diseases and Sciences, 52(5), 1247-1252.
DOI Scopus36 WoS28 Europe PMC24
2007 Geier, M., Butler, R., Giffard, P., & Howarth, G. (2007). Lactobacillus fermentum BR11, a potential new probiotic, alleviates symptoms of colitis induced by dextran sulfate sodium (DSS) in rats. International Journal of Food Microbiology, 114(3), 267-274.
DOI Scopus107 WoS97 Europe PMC78
2007 Mauger, C., Butler, R., Geier, M., Tooley, K., & Howarth, G. (2007). Probiotic effects on 5-fluorouracil-induced mucositis assessed by the sucrose breath test in rats. Digestive Diseases and Sciences, 52(3), 612-619.
DOI Scopus41 WoS39 Europe PMC29
2006 Geier, M., Butler, R., & Howarth, G. (2006). Probiotics, prebiotics and synbiotics: a role in chemoprevention for colorectal cancer?. Cancer Biology & Therapy, 5(10), 1265-1269.
DOI Scopus160 WoS128 Europe PMC84
2005 Cool, J., Wright, J., Xian, C., Butler, R., Geier, M., & Howarth, G. (2005). Pre-treatment with insulin-like growth factor-I partially ameliorates 5-fluorouracil-induced intestinal mucositis in rats. Growth Hormone & IGF Research, 15(1), 72-82.
DOI Scopus61 WoS65 Europe PMC44
2005 Geier, M., Tenikoff, D., Yazbek, R., McCaughan, G., Abbott, C., & Howarth, G. (2005). Development and resolution of experimental colitis in mice with targeted deletion of dipeptidyl peptidase IV. Journal of Cellular Physiology, 204(2), 687-692.
DOI Scopus41 WoS42 Europe PMC34

Year Citation
2021 Kartikasari, L. R., Hughes, R. J., Geier, M. S., & Gibson, R. A. (2021). Omega-3 fatty acid composition of chicken plasma fed diets varying in la to ALA ratio. In Iop Conference Series Earth and Environmental Science Vol. 902 (pp. 012012). IOP Publishing.
DOI Scopus1
2011 Hughes, R., Geier, M., Black, J., Tredrea, A., Diffey, S., & Nielsen, S. (2011). Responsiveness of high screenings and commercial cereal grains to a blend of xylanase and phytase enzyme products. In Proceedings of the 22nd Annual Australian Poultry Science Symposium (pp. 74-77). online: University of Sydney.
2011 Forder, R., Nattrass, G., Geier, M., Hughes, R., & Hynd, P. (2011). Quantitative analyses of genes associated with Mucin production and host inflammatory response of broiler chickens with induced necrotic enteritis. In Proceedings of the 22nd Annual Australian Poultry Science Symposium (pp. 18-21). online: University of Sydney.
2011 Moore, R., Stanley, D., Konsak, B., Haring, V., Hughes, R., Geier, M., & Crowley, T. (2011). Correlations between variable broiler performance and gene expression and microflora in the gut. In Proceedings of the 22nd Annual Australian Poultry Science Symposium (pp. 9-16). online: University of Sydney.
2010 Black, J., Hughes, R., Geier, M., Nielsen, S., Tredrea, A., & Flinn, P. (2010). Update on near infrared reflectance analysis of grains to estimate nutritional value for chickens. In Proceedings of Australian Poultry Science Symposium 2010 (pp. 51-54). Sydney: University of Sydney.
2010 Golder, H., Geier, M., Hynd, P., Forder, R., Boulianne, M., & Hughes, R. (2010). Feed additives influence goblet cell distribution and villus-crypt architecture in broilers after necrotic enteritis challenge. In Proceedings of Australian Poultry Science Symposium 2010 (pp. 211-214). Sydney: University of Sydney.
2010 Kartikasari, L., Hughes, R., Geier, M., Makrides, M., & Gibson, R. (2010). Diets high in linoleic acid reduce omega-3 long chain polyunsaturated fatty acids in chicken tissues. In Proceedings of the Australian Poultry Science Symposium 2010 (pp. 64-67). Sydney: University of Sydney.
2010 Geier, M., Mikkelsen, L., Torok, V., Allison, G., Olnood, C., Setia, A., . . . Hughes, R. (2010). Effects of novel feed additives on gut health and overall performance in birds challenged with Clostridium Perfringens. In Proceedings of 21st Annual Australian Poultry Science Symposium (pp. 207-210). Sydney: University of Sydney.
2009 Prisciandaro, L., Geier, M., Butler, R., Cummins, A., & Howarth, G. (2009). Compounds secreted from Escherichia Coli Nissle 1917, Streptococcus Thermophilus Th-4 and Lactobacillus Fermentum Br11 maintain intestinal cell viability following 5-fluorouracil administration in vitro. In Abstracts of the 2009 International MASCC/ISOO Syposium Vol. 17 (pp. 913-914). Italy: Springer.
DOI
2009 Prisciandaro, L., Geier, M., Butler, R., Cummins, A., & Howarth, G. (2009). Factors secreted from Lactobacillus fermentum Br11 and Escherichia Coli Nissle 1917 as a potential therapy for 5-fluorouracil induced mucositis: a pilot study. In Abstracts of the 2009 International MASCC/ISOO Symposium (pp. 913-914). Italy: Springer.
DOI
2009 Mashtoub, S., Lindsay, R., Lymn, K., Geier, M., Butler, R., & Howarth, G. (2009). Emu oil improves parameters of intestinal integrity in rat models of inflammatory bowel disease and intestinal mucositis. In Abstracts of the 2009 International MASCC/ISOO Symposium (pp. 910-911). Italy: Springer.
DOI
2009 Prisciandaro, L., Geier, M., Butler, R., Cummins, A., Howarth, G., & Abbott, C. (2009). Probiotic factors protect intestinal cells from chemotherapy-induced cytotoxicity and improve parameters of 5-fluorouracil induced intestinal mucositis in rats. In Journal of Gastroenterology and Hepatology Vol. 24 (pp. 328). Australia: Wiley-Blackwell.
DOI

Date Role Research Topic Program Degree Type Student Load Student Name
2009 - 2013 Co-Supervisor Omega-3 Long Chain Polyunsaturated Fatty Acid (n-3 LCPUFA) Levels in Chicken Products Following Consumption of alpha-Linolenic Acid Enriched Diets Doctor of Philosophy Doctorate Full Time Mrs Lilik Kartikasari
2008 - 2013 External Supervisor Probiotic-Derived Factors for the Treatment and Prevention of 5-Fluorouracil-Induced Intestinal Mucositis Doctor of Philosophy Doctorate Full Time Mr Luca Prisciandaro
  • Position: Senior Advisor: Competitive Funding
  • Email: mark.geier@adelaide.edu.au
  • Alternative Contact: Grant Application Support Officer - Michelle Chen (8302 5292) Grant Application Support Officer - Shona Ellison (8302 3682) Grant Application Support Officer - Gina Mincham (8302 3958)

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