College of Agriculture

Grazyne Tresoldi

Assistant Professor

Personal Information

Grazyne Tresoldi loves cows, and that love has carried her from her home country of Brazil to California, where she joined the faculty in animal science at CSU, Chico in the fall of 2018. Tresoldi grew up in a farming family in rural Brazil but didn’t plan to study cows until a food safety internship at a small creamery led to a fascination with dairy cows' behavior and welfare.

Tresoldi holds a degree in veterinary medicine from the Federal University of Rio Grande do Sul, a masters in agroecosystems from the Federal University of Santa Catarina, and a PhD in animal biology with an emphasis in animal behavior and stress physiology from UC Davis. Her PhD research studied dairy cows’ behavior and physiology in order to understand heat stress and identify cooling strategies to optimize cow welfare, milk production, and resource sustainability.  

When she’s not teaching students or studying cows, Tresoldi enjoys photographing cows all over the world.

Courses

ANSC 274 – Principles of Dairy Production

ANSC 360 – Animal Health and Disease

ANSC 370 – Livestock and Companion Animal Behavior

ANSC 474 – Dairy Production and Management

Professional Affiliations

  • Professional Animal Auditor Certification Organization, PAACO
  • North American Colleges and Teachers of Agriculture, NACTA
  • Dairy Cattle Welfare Council
  • American Dairy Science Association, ADSA
  • International Society of Applied Ethology, ISAE

Research and Publications

Visit Dr. Tresoldi’s website for a full list of publications and presentations.

  1. Tresoldi, K.E. Schütz, C.B. Tucker. Cooling cows with sprinklers: effects of soaker flow rate and timing on behavioral and physiological responses to heat load and production. 2019. Journal of Dairy Science 102: 528-538. https://doi.org/10.3168/jds.2018-14962
  2. Tresoldi, K.E. Schütz, C.B. Tucker. Cooling cows with sprinklers: spray timing affects physiological responses to heat load. 2018. Journal of Dairy Science 101:11237-11246. https://doi.org/10.3168/jds.2018-14917
  3. Tresoldi, K.E. Schütz, C.B. Tucker. Cooling cows with sprinklers: spray duration affects physiological responses to heat load. 2018. Journal of Dairy Science 101:4412-4423. https://doi.org/10.3168/jds.2017-13806
  4. Tresoldi, K.E. Schütz, C.B. Tucker. 2017. Cow cooling on commercial drylot dairies: a description of 10 farms in California. California Agriculture 71:249–255. https://doi.org/10.3733/ca.2017a0042
  5. Tresoldi, K.E. Schütz, C.B. Tucker. 2016. Assessing heat load in drylot dairy cattle: Refining on-farm sampling methodology. Journal of Dairy Science 99:8970–8980. http://dx.doi.org/10.3168/jds.2016-11353
  6. Tresoldi, D.M. Weary, L.C. Pinheiro Machado Filho, M.A.G von Keyserlingk. 2015. Social licking in pregnant dairy heifers. Animals 5:1169-1179. https://doi.org/10.3390/ani5040404