Patrick J Gorden

DVM, PhD, Diplomate ABVP-Dairy, Diplomate ACVCP
Education & Certifications  
  • Diplomate - ACVCP (2018)
  • PhD, Iowa State University (2017)
  • Diplomate - ABVP-Certified in Dairy Practice (2004)
  • DVM, Iowa State University College of Veterinary Medicine (1993)
  • VDPAM 402 - Advanced Dairy Production Informatics
  • VDPAM 476 - Food Animal and Camelid Field Services
  • VDPAM 484 - Dairy Production Medicine
  • VDPAM 485 - Applied Dairy Production Medicine Preceptorship
  • VDPAM 494 - Advanced Dairy Production Medicine
Research Focus & Interests  
  • Milk quality, mastitis control, drug residue prevention in milk and meat
  • Director – Food Supply Veterinary Medicine – VDPAM
  • National Conference of Interstate Milk Shipments (NCIMS), Executive Committee, Appendix N Modification Sub-committee
  • Diplomate, American College of Veterinary Clinical Pharmacology
  • Diplomate, American Board of Veterinary Practitioners, Certified in Dairy Practice
  • American Association of Bovine Practitioners (AABP)
  • American Dairy Science Association (ADSA)
  • American Veterinary Medical Association (AVMA)
  • National Mastitis Council (NMC)
Selected Publications  

Google Scholar Page

Buckley, MP*, J Bayne, T Tomazi, BE Miller, GS Silva, and PJ Gorden. 2023. Evaluation of internal teat sealant persistence in the mammary gland during the dry period. Bov Prac, 57(2):51-59. doi: 10.21423/bovine-vol27no2p51-59. 

Buckley, MP*, J Bayne, T Tomazi, BE Miller, SM Godden, GS Silva, and PJ Gorden. 2023. A randomized equivalence study evaluating the efficacy of two commercially available teat sealants in dairy cows. Bov Prac, 57(2):36-50. doi: 10.21423/bovine-vol27no2p36-50. 

Fritz SA, SM Ensley, JR Lawrence, N Van Engen, Z Lin, MD Kleinhenz, LW Wulf, S Rice, PJ Gorden, J Peterson, and JF Coetzee. 2023. Pharmacokinetics, milk residues, and toxicological evaluation of a single high dose of meloxicam administered at 30 mg/kg per os to lactating dairy cattle. Vet Sci.  Apr 19;10(4). doi: 10.3390/vetsci10040301. 

Koester LR, KP Hayman*, CJ Anderson, BW Tibbs-Cortes, KM Daniels, FM Seggerman, PJ Gorden, M Lyte, and S Schmitz-Esser. 2023. Influence of a sodium-saccharin sweetener on the rumen content and rumen epithelium microbiota in dairy cattle during heat stress. J Anim Sci, 101. DOI: 10.1093/jas/skac403.

Wickramasinghe J*, CJ Anderson, CA Kaya, PJ Gorden, FRB Ribeiro, J Dohms, S Rigert, S Schmitz-Esser, and R Appuhamy. 2022. Evaluating ruminal and small intestinal morphology and microbiota composition of calves fed a Macleaya cordata extract preparation. Animals, 13(1). DOI: 10.3390/ani13010054.

Siepker, CL, KJ Schwartz, TJ Feldhacker, DR Magstadt, O Sahin, M Almeida, G Li, KP Hayman*, and PJ Gorden. 2022. Salmonella enterica serovar Brandenburg abortions in dairy cattle. J Vet Diag Invest, DOI: 10.1177/10406387221105890.

Zheng, Z*, PJ Gorden, X Xia, Y Zheng, and G Li. 2022. Whole-genome analysis of Klebsiella pneumoniae from bovine mastitis milk in the US. Environ Microbiol, 23(3):1183-1199, DOI: 10.1111/1462-2920.15721.

Meyer, K*, K Hayman, J Baumgartner, and PJ Gorden. 2022. Plasma pharmacokinetics of cannabidiol oil administered orally to dairy calves. Front Vet Sci, DOI: 10.3389/fvets.2022.789495.

Warner, R*, BC Smith, KJ Stalder, LA Karriker, S Plaengkaeo, BC Ramirez, and PJ Gorden. 2021. Embedded microcomputer-based force plate system validation when evaluating lameness severity differentiation under an induced synovitis model in lactating dairy cattle. J Animal, DOI: 10.1016/j.animal.2021.100415.

Rowe, SM, DV Nydam, SM Godden, PJ Gorden, A Lago, AK Vasquez, E Royster, J Timmerman, MJ Thomas, and R Lynch. 2021. Partial budget analysis of culture and algorithm guided selective dry cow therapy. J Dairy Sci, 104(5):5652-5664, DOI:  10.3168/jds.2020-19366.