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  • Author or Editor: Christine A. Parker-Graham x
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To determine the pharmacokinetics of danofloxacin following IM administration of a single dose (10 mg/kg) in koi (Cyprinus carpio).


69 healthy adult koi housed in a 980-L flow-through-system tank.


3 fish were kept as untreated controls, and the remaining 66 fish were assigned to 11 treatment groups with 6 fish/group. Fish in the treatment groups were given a single dose of danofloxacin (10 mg/kg) IM in the left epaxial musculature. Fifteen, 30, and 45 minutes and 1, 4, 12, 24, 72, 96, 120, and 144 hours after administration of danofloxacin, fish in each treatment group were euthanized, and blood samples and samples of liver, spleen, gill, anterior kidney, posterior kidney, skin and muscle, and scales were collected. Plasma and tissue drug concentrations were determined by liquid chromatography–tandem mass spectrometry, and noncompartmental pharmacokinetic analyses were performed. Tissues from the untreated control fish and fish euthanized 144 hours after danofloxacin administration were examined histologically.


Maximum plasma concentration (mean, 8,315.7 ng/mL) was reached approximately 45 minutes after danofloxacin administration; plasma elimination half-life was 15 hours. Danofloxacin was detected in all examined tissues from all 6 fish euthanized 15 minutes after drug administration and was detected in some tissues from 3 of the 6 fish euthanized 144 hours after drug administration. For all tissues, results of histologic examination were unremarkable.


IM administration of a single dose (10 mg/kg) of danofloxacin in koi resulted in rapid absorption, with maximum plasma concentration reached approximately 45 minutes after drug administration; the drug could still be detected in some tissues 144 hours after administration.

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in American Journal of Veterinary Research

Wildfires are a serious and expanding threat in western North America, and wildfire encroachment on human populations leads to widespread evacuation and emergency housing operations for residents and their companion animals and livestock. Veterinarians are frequently part of wildfire response efforts and are called upon to assist in rescue, evacuation, and emergency housing operations as well as to provide medical care for evacuated animals. Although veterinarians are likely familiar with the principles of transporting and housing terrestrial animals, emergency response for aquatic companion animals presents unique logistic challenges. Veterinarians familiar with aquatic animal evacuation, housing, and care prior to a wildfire response can extend the scope of disaster recovery. This report offers general guidance for rescuing, evacuating, housing, and caring for aquatic animals in the wake of a wildfire.

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in Journal of the American Veterinary Medical Association