Mariana Caetano

Research Interests

Animal Growth and Development Animal Nutrition Animal Production Microbiology

Dr Mariana Caetano

Senior Lecturer

School of Animal and Veterinary Sciences

College of Science

Available For Media Comment.

Her expertise lies in ruminant nutrition and metabolism, with a strong emphasis on maternal nutrition and the optimisation of grain, fibre, and protein sources to support efficient animal growth. Her work focuses on how maternal nutrition influences progeny development, health, and lifetime performance, as well as how strategic combinations of feed ingredients and nutrients can enhance digestibility and overall productivity in beef, dairy, and sheep systems. Through a multidisciplinary approach, she examines the complex interactions between nutrition, gut microbes, animal health, reproduction, and production outcomes. She evaluates a wide range of supplements and feeding strategies to determine their effects on microbial populations, metabolic processes, and animal efficiency. Her overarching aim is to develop practical, cost-effective nutritional solutions that improve growth, enhance sustainability, reduce methane emissions, and strengthen long-term performance in ruminant production systems.

Date Position Institution name
2024 - ongoing Senior Lecturer University of Adelaide
2021 - 2023 Lecturer The University of Adelaide
2017 - 2020 Associate Lecturer University of Adelaide, Adelaide
2013 - 2017 Postdoctoral Research Fellow University of Adelaide, Adelaide
2012 - 2013 Postdoctoral Research Fellow University of Sao Paulo, São Paulo

Date Type Title Institution Name Country Amount
2019 Award Science and Innovation, Technology of Information University of São Paulo Brazil -
2005 Award Merit for the best performance in the Department of Livestock Sao Paulo State University Brazil -

Language Competency
English Can read, write, speak, understand spoken and peer review
Portuguese Can read, write, speak, understand spoken and peer review

Date Institution name Country Title
2008 - 2012 University of Sao Paulo, São Paulo Brazil PhD in Sciences
2006 - 2008 University of Sao Paulo, São Paulo Brazil MSc in Agronomy
2001 - 2005 Sao Paulo State University, São Paulo Brazil BSc in Animal Science

Year Citation
2026 Boyce, T. R., Carlyon, L. P., Petrovski, K. R., Dunstan, L. J., Alves, B. R., Mamu Werid, G., & Caetano, M. (2026). A pilot study on anogenital distance in non-pregnant and pregnant Merino ewes and ewe hoggets measured by calipers and image analysis. Animal Reproduction Science, 285, 108072.
DOI
2025 Dent, M. G., Brownrigg, A. H., Costa Alves, B. R., Wenham, K. M., Lee, S. J., Pitchford, W. S., . . . Caetano, M. (2025). The effect of bromoform supplementation in Angus cows during late gestation on offspring's growth performance and maternal greenhouse gas emissions using two devices. Livestock Science, 298, 105720.
DOI
2025 Dunstan, L. -J., Hebart, M. L., Brien, F. D., McCoard, S. A., & Caetano, M. (2025). Evaluating Amino Acid Profiles and Blood Gas Concentrations Between Single and Twin Merino Newborn Lambs. Animal Science Journal, 96(1), e70107-1-e70107-6.
DOI Europe PMC1
2024 Dasari, M., Keller, C. J., Alves, C., Wenham, K. M., Trengove, C. L., Lee, S. J., . . . Caetano, M. (2024). Evaluation of maternal low-dose bromoform supplementation in late gestation on blood parameters of cows and their progeny.. Vet J, 308, 106248.
DOI Scopus1 WoS1
2021 Caetano, M., Goulart, R. S., Silva, S. L., Leme, P. R., Pflanzer, S. B., Dos Santos, A. C. R., & Lanna, D. P. D. (2021). Effects of the Duration of Zilpaterol Hydrochloride Supplementation and Days on Feed on Performance, Carcass Traits and Saleable Meat Yield of Nellore Bulls.. Animals, 11(8), 2450-1-2450-12.
DOI WoS1
2021 Caetano, M., Goulart, R. S., Silva, S. L., Pflanzer, S. B., Leme, P. R., Dos Santos, A. C. R., & Lanna, D. P. D. (2021). Meat quality of nellore young bulls—effects of different days on feed and zilpaterol hydrochloride supplementation. Animals, 11(9), 2688-1-2688-15.
DOI Scopus3 WoS2 Europe PMC1
2020 Goulart, R. S., Caetano, M., Pott, E. B., da Cruz, G. M., Tullio, R. R., de Alencar, M. M., . . . Lanna, D. P. D. (2020). Comparison of Nellore and Bos taurus × Nellore beef crosses at the same age on performance, carcass characteristics, and fecal starch content. Applied Animal Science, 36(3), 430-436.
DOI Scopus6 WoS6
2020 Michelotti, T. C. D. A., Silva¹, R. A., Carneiro, J. H., Navarro, R. B., Carvalho, I. Q. D., Paula, E. M., . . . Almeida, R. (2020). Effect of Ensiling Time on Apparent Total Tract Starch Digestibility in Southern Brazilian Dairy Herds. Scientia Agricola, 78(2), e20190096-1-e20190096-6.
DOI Scopus2 WoS2
2019 Caetano, M., Wilkes, M. J., Pitchford, W. S., Lee, S. J., & Hynd, P. I. (2019). Effect of ensiled crimped grape marc on energy intake, performance and gas emissions of beef cattle. Animal Feed Science and Technology, 247, 166-172.
DOI Scopus23 WoS20 Europe PMC3
2019 Caetano, M., Goulart, R. S., Rizzo, P. M., Silva, S. D. L., Drouillard, J. S., Leme, P. R., & Lanna, D. P. D. (2019). Impact of flint corn processing method and dietary starch concentration on finishing performance of Nellore bulls. Animal Feed Science and Technology, 251, 166-175.
DOI Scopus13 WoS11
2019 van Lingen, H. J., Niu, M., Kebreab, E., Valadares Filho, S. C., Rooke, J. A., Duthie, C. A., . . . Hristov, A. N. (2019). Prediction of enteric methane production, yield and intensity of beef cattle using an intercontinental database. Agriculture, Ecosystems and Environment, 283, 18 pages.
DOI Scopus84 WoS78 Europe PMC21
2018 Caetano, M., Wilkes, M., Pitchford, W., Lee, S., & Hynd, P. (2018). Energy relations in cattle can be quantified using open-circuit gas-quantification systems. Animal Production Science, 58(10), 1807-1813.
DOI Scopus13 WoS12
2016 Caetano, M., Wilkes, M., Pitchford, W., Lee, S., & Hynd, P. (2016). Efficacy of methane-reducing supplements in beef cattle rations. Animal Production Science, 56(3), 276-281.
DOI Scopus4 WoS4
2015 Caetano, M., Goulart, R., Silva, S., Drouillard, J., Leme, P., & Lanna, D. (2015). Effect of flint corn processing method and roughage level on finishing performance of Nellore-based cattle. Journal of Animal Science, 93(8), 4023-4033.
DOI Scopus24 WoS25 Europe PMC11
2013 Nuñez, A. J. C., Caetano, M., Berndt, A., Demarchi, J. J. A. D. A., Leme, P. R., & Lanna, D. P. D. (2013). Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets. Scientia Agricola, 70(4), 229-236.
DOI Scopus26 WoS23
- Teixeira Rodrigues de Almeida, S., Caetano, M., Kirkwood, R. N., & Petrovski, K. R. (2025). The Basics of Clinical Nutrition for Compromised Ruminants—A Narrative Review. Ruminants, 5(4), 51.
DOI
- Petrovski, K. R., Kirkwood, R. N., Teixeira Rodrigues de Almeida, S., & Caetano, M. (2025). A Proposed Framework for Nutritional Assessment in Compromised Ruminants. Ruminants, 5(4), 57.
DOI

Year Citation
2022 Flanagan, L. J., Hebart, M. L., Brien, F. D., McCoard, S. A., & Caetano, M. (2022). Evaluating amino acid profiles and birth traits between single and twin Merino lambs. In Animal Science in Australia Vol. 34 (pp. lxxiv). Cairns, Queensland, Australia: CSIRO Publishing.
2010 Caetano, M., Nunez, A. J. C., Mourao, G. B., & Lanna, D. P. D. (2010). Time of collection affects starch losses in Nellore and crossbred cattle in commercial feedlots. In JOURNAL OF DAIRY SCIENCE Vol. 93 (pp. 697-698). ELSEVIER SCIENCE INC.
WoS1

[2025-present] Marine Bioproducts CRC. Evaluation of new formulations in reducing enteric methane emissions ($849,290.00). Chief investigator

[2024-present] University of Queensland to Phytobiotics Futterzusatzstoffe GmBH. Investigation of Sangrovit for heat stress in feedlot cattle ($73,351.00). Chief Investigator

[2024-present] Department of Agriculture, Food and Fisheries (Australian government). Investigating the PFAS burden in livestock raised on biosolid-amended pastures ($487,093.00). Co-investigator

[2023-present] Department of Industry, Science and Resources (Australian government). Methane throughout the beef cattle production cycle in southern Australia ($1,605,601.00). Chief Investigator

[2022-2023] Department of Agriculture, Fisheries and Forestry; Agricultural Innovation Hubs Program (Australian government). Methane reduction in beef cattle in commercial production systems ($260,173.00). Chief Investigator

[2022-2023] Innovation and Commercial Partners (Australian government). Beachport Liquid Minerals project 2 ($100,463.00). Chief Investigator

[2021-2022] Innovation and Commercial Partners (Australian government). Beachport Liquid Minerals project 1 ($106,259.00). Chief Investigator

[2020-2021] Fight Food Waste CRC. 20FFWCRC. Livestock and equine scoping study ($99,680.00). Co-investigator

[2019-2023] Meat and Livestock Australia (MLA). L.LSM.0026. A novel amino acid approach to lamb survival ($880,481.00). Chief Investigator

[2019] Davies Livestock Research Centre. DRC2019PP1. Breath biomarkers in ruminants ($115,392.00). Chief Investigator

  • Animal Nutrition and Metabolism III (Course Coordinator)
  • Animal Nutrition and Metabolism II (Course Coordinator)
  • Professional Skills in Animal Science III
  • Animal and Plant Biochemistry II
  • Microbiology and Invertebrate Biology II
  • Livestock Production Science II
  • Professional Skills in Veterinary Bioscience II
  • Animal Microbiology and Virology II

Other roles at Adelaide University

Date Role Research Topic Program Degree Type Student Load Student Name
2024 Principal Supervisor Reduction of Methane Emissions in Southern Australian Beef Cattle Doctor of Philosophy Doctorate Full Time Miss Kellie May Wenham
2024 Principal Supervisor Evaluating the maternal supplementation of bromoform to twin-bearing Merino ewes and their progeny Doctor of Philosophy Doctorate Full Time Miss Tianna Rianne Boyce
2024 Co-Supervisor Effects of maternal nutrition on piglet's survival, growth and performance Doctor of Philosophy Doctorate Full Time Mr Thien Dinh Van

Connect With Me

External Profiles

Other Links