Gehring R, Coetzee JF, Tarus-Sang J, Apley MD Pharmacokinetics of ketamine and its metabolite norketamine administered at a sub-anesthetic dose together with xylazine to calves prior to castration. Journal of Veterinary Pharmacology and Therapeutics (In press)
Coetzee JF, Lubbers BL, Toerber SE, Gehring R, Thomson DU, White BJ, Apley MD Comparison between plasma substance P and cortisol concentrations following castration in beef calves. American Journal of Veterinary Research 69 (6): 751-762, 2008
Apley MD, Coetzee JF, Imerman PM, Karriker LA, Gehring R Ampicillin pharmacokinetics in swine following needle-free, intramuscular and intravenous administration. Journal of Veterinary Pharmacology and Therapeutics 30 (5): 417-421, 2007
KuKanich B, Coetzee JF, Gehring R, Hubin M Comparative disposition of pharmacologic markers for cytochrome P-450 mediated metabolism, glomerular filtration rate, and extracellular and total body fluid volume of Greyhound and Beagle dogs. Journal of Veterinary Pharmacology and Therapeutics 30 (2): 314-319, 2007
Coetzee JF, Gehring R, Bettenhausen AC, Lubbers BL, Thomson DU, KuKanich B, Toerber SE and Apley MD Mitigation of plasma cortisol response in bulls following intravenous sodium salicylate administration prior to castration. Journal of Veterinary Pharmacology and Therapeutics 30 (4): 305-313, 2007
Abu-Basha EAH, Gehring R, Albwa'neh SJ. Pharmacokinetics and bioavailability of spectinomycin after IV, IM, SC and oral administration in broiler chickens. Journal of Veterinary Pharmacology and Therapeutics 30 (2): 139-144, 2007