Patrick J Gorden

Education & Certifications  

Diplomate - ACVCP (2018)
PhD, Iowa State University (2017)
Diplomate - ABVP-Certified in Dairy Practice (2004)
DVM, Iowa State Univerity 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 491 - Advanced Ruminant Nutrition
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
Vice President - American Association of Bovine Practitioners
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

Gorden, PJ, JA Ydstie, MD Kleinhenz, TA Brick, JS Smith, RW Griffith, LW Wulf, S Rajewski, M Zhang, PK Sidhu, JP Mochel, and JF Coetzee. 2018. Comparative plasma and interstitial fluid pharmacokinetics and tissue residues of ceftiofur crystalline free acid in cattle with induced coliform mastitis. J Vet Pharm Therapeut, 41:848–860, DOI: 10.1111/jvp.12688.

Gorden, PJ, MD Kleinhenz, JA Ydstie, TA Brick, LM Slinden, MP Peterson, DE Straub, and DT Burkhardt. Efficacy of vaccination with a Klebsiella pneumoniae siderophore receptor protein (SRP®) vaccine for reduction of Klebsiella mastitis in lactating cattle. J Dairy Sci, 101:10398–10408, DOI: 10.3168/jds.2017-14267.

Jenkins, SJN, E Okello, PV Rossitto, TW Lehenbauer, J Champagne, MCT Penedo, AG Arruda, S Godden, P Rapnicki, PJ Gorden, LL Timms, and SS Aly. 2019. Molecular epidemiology of coagulase-negative Staphylococcus species isolated at different lactation stages from dairy cattle in the United States. PeerJ, 7:e6749,

Gorden, PJ, M Burchard, JA Ydstie, MD Kleinhenz, LW Wulf, S Rajewski, C Wang, R Gehring, JP Mochel, and JF Coetzee. 2018. Comparison of milk and plasma pharmacokinetics of meloxicam in post-partum versus mid-lactation cows Holstein cows. J Vet Pharm Therapeut, 41:463–468, DOI: 10.1111/jvp.12488.

Gorden, PJ, MD Kleinhenz, LW Wulf, S Rajewski, R Gehring, C Wang, and JF Coetzee. 2018. Comparative plasma pharmacokinetics of flunixin meglumine and ceftiofur hydrochloride following individual and co-administration in dairy cows. J Vet Pharm Therapeut, 41(1):76-82, doi: 10.1111/jvp.12437.  

Schuler, AM, C Rice, and PJ Gorden. 2017. Survey of treatment practices on Midwest dairy farms. Bov Pract, 51:190-199.

Gorden, PJ, JA Ydstie, MD Kleinhenz, LW Wulf, R. Gehring, CJ Lee, C Wang, and JF Coetzee. 2016. A study to examine the relationship between metritis severity and depletion of oxytetracycline in plasma and milk after intrauterine infusion. J Dairy Sci. 99(10): 8314-8322.

Gorden, PJ, MD Kleinhenz, LW Wulf, B KuKanich, CJ Lee, C Wang, and JF Coetzee, 2016. Altered plasma pharmacokinetics of ceftiofur hydrochloride in cows affected with severe clinical mastitis. J Dairy Sci. 99(1): 505-514.

Gorden, PJ, M van der List, FD Lehman, RK Lantz, and PD Constable. 2013. Elimination kinetics of cephapirin in lactating cows treated with an 8-day extended therapy program. J Dairy Sci, 96:4455–64.

Gorden, PJ and PJ Plummer. 2010.  Control, management, and prevention of bovine respiratory disease in dairy calves and cows. Vet Clin North Am Food Anim Pract, 26(2):243-59.