Hey, I’m Ty Thomas 👋

I am a rancher turned researcher who is passionate about sharing science with those outside of academia.

Areas of Expertise


Animal Nutrition

Ruminant Microbiome

Liver Abscesses in Cattle

Forage Digestibility

Statistical Analysis

Science Communication

Current Projects


Producing a weekly newsletter sharing bovine science.

Researching dry matter disappearance in fistulated steers.

Teaching undergraduates about animal nutrition at CSU.

Hosting the weekly Cattle Producer Podcast.

Managing the social media and website of Thomas Angus Ranch.

Research Publications


Thomas, Tyler, Alyssa Deters, Alexandra Miller, Huey Yi Loh, Terry Engle, and T. G. Nagaraja. “PSXII-29 Development of an in Vitro Rumen Fermentation Model to Assess Fusobacterium Necrophorum Growth Inhibition.” Journal of Animal Science 101 (November 6, 2023): 641–42. https://doi.org/10.1093/jas/skad281.745.

Thomas, Tyler. “The Influence of Trace Mineral Source on Reproductive Performance in Recipient Multiparous Beef Cows - ProQuest.” Colorado State University, 2022. https://www.proquest.com/openview/245494cfc90a86927e2ae1a7b788683a/1?pq-origsite=gscholar&cbl=18750&diss=y.

Gifford, Ryan J, Meghan P Thorndyke, Octavio Guimaraes, Harrison Hallmark, Sara Crane, Tyler A Thomas, Rick Goodall, John J Wagner, and Terry E Engle. “The Influence of Propionibacteria on in Vivo Rumen Fermentation Characteristics and in Vitro Lactic Acid Clearance Rate in Fistulated Steers Fed Moderately High Concentrate Diets.” Translational Animal Science 5, no. Supplement_S1 (December 1, 2021): S115–19. https://doi.org/10.1093/tas/txab148.

Heldt, Jeff S, Harrison Hallmark, Huey Yi Loh, Sara Crane, Briana V Tangredi, Tyler A Thomas, Ryan J Gifford, Meghan P Thorndyke, Octavio Guimaraes, and Terry E Engle. “PSX-A-12 Late-Breaking: Effects of RenergyTM on Ruminal Fermentation in Steers Fed a High-Grain Diet.” Journal of Animal Science 99, no. Supplement_3 (November 1, 2021): 375. https://doi.org/10.1093/jas/skab235.686.

Tangredi, Briana V, Meghan P Thorndyke, Octavio Guimaraes, Rebecca K Barrington, Shaniece M Borgerding, Tyler A Thomas, Harrison Hallmark, et al. “PSIII-14 The Influence of Dietary Barley Supplementation on American Wagyu Feedlot Performance.” Journal of Animal Science 99, no. Supplement_3 (November 1, 2021): 289. https://doi.org/10.1093/jas/skab235.531.

Thomas, Tyler A, Briana V Tangredi, Harrison D Hallmark, Meghan P Thorndyke, Octavio Almeida Guimaraes de Bisneto, Sara Crane, and Terry E Engle. “PSIX-15 The Influence of Trace Mineral Source on Reproductive Performance in Recipient Multiparous Beef Cows.” Journal of Animal Science 100, no. Supplement_3 (October 1, 2022): 370. https://doi.org/10.1093/jas/skac247.676.

Levenson, Jonah, Huey Yi Loh, Alexandra Miller, Tyler Thomas, Meghan Thorndyke, John Wagner, Terry Engle, and Jeff Heldt. “PSI-24 Trace Mineral Source, Diet Type, and Rumensin Influences Ruminal Fermentation Characteristics.” Journal of Animal Science 101 (November 6, 2023): 604–5. https://doi.org/10.1093/jas/skad281.705.

Tillquist, N. M., M. P. Thorndyke, T. A. Thomas, S. J. Coleman, and T. E. Engle. “Impact of Cell Culture and Copper Dose on Gene Expression in Bovine Liver.” Biological Trace Element Research 200, no. 5 (May 1, 2022): 2113–21. https://doi.org/10.1007/s12011-021-02829-5.

Gifford, Ryan, Terry Engle, Meghan Thorndyke, Rick Goodall, Harrison Hallmark, Tyler Thomas, Sara Crane, Octavio Guimaraes, and John Wagner. “PSXVI-22 The Influence of Propionibacteria on in Vivo Rumen Fermentation Characteristics and in Vitro Lactic Acid Clearance Rate in Fistulated Steers Fed Moderately High Concentrate Diets.” Journal of Animal Science 99 (October 8, 2021): 481–82. https://doi.org/10.1093/jas/skab235.849.

Tillquist, Nicole M, Meghan P Thorndyke, Tyler A Thomas, Stephen J Coleman, and Terry E Engle. “PSVII-12 Investigating the Influence of Copper Supplementation on Copper Homeostatic Genes in Bovine Liver.” Journal of Animal Science 98, no. Supplement_4 (November 3, 2020): 308. https://doi.org/10.1093/jas/skaa278.550.