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1 April 2021 USE OF TOPICAL TREATMENTS AND EFFECTS OF WATER TEMPERATURE ON WOUND HEALING IN COMMON CARP (CYPRINUS CARPIO)
June Ang, Felipe Pierezan, Soohyun Kim, Taylor I. Heckman, Fernanda A. Sebastiao, Zeinab Yazdi, Samah M.R. Abdelrazek, Esteban Soto
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Abstract

Skin lesions are frequently diagnosed in fish medicine. Although systemic fish treatments exist, little is known about the efficacy of topical drugs on fish skin lesions. This study aimed to investigate the efficacy of medical-grade honey and silver products on skin lesions using common carp (Cyprinus carpio) as a model. Additionally, the effect of temperature on the wound healing process was evaluated. Punch biopsies were generated on six fish per treatment group under anesthesia. Treatment groups received one of the following topical medications after wounding: Dr. Nordyke's Wound Honey, MicroLyte Ag Vet, or SilvaSorb Gel. Nontreated positive control groups were similarly wounded but did not receive topical treatment. Fish were housed at 10°C to 13°C or 18°C to 21°C for 29 days. Macroscopic evaluation and image collection of wounds were performed on days 0, 4, 8, 12, 21, and 29 after wounding to compare changes in wound areas and inflammation over time. On day 29, tissue samples were collected for histologic analysis. From day 12 after wounding onward, wounds in positive controls maintained at 18°C to 21°C were significantly smaller (days 12, 21, and 29: P < 0.0001) compared with positive controls kept at 10°C to 13°C. There was an overall improvement in macroscopic appearance in honey-treated groups compared with positive controls on day 12 after wounding at 18°C to 21°C (P = 0.001), whereas with the use of Microlyte and Silvasorb, wounds had increased inflammation grades (P < 0.0001 and P < 0.0001, respectively) with enlarged wound areas (P < 0.0001 and P < 0.001, respectively) in comparison with positive controls on day 12 after wounding at 18°C to 21°C. This study suggests that topical use of medical-grade honey produces positive effects on wound healing in the carp model and higher water temperatures enhance the effects, whereas the use of silver products and lower water temperatures delays or worsens the wound healing process.

Copyright 2021 by American Association of Zoo Veterinarians
June Ang, Felipe Pierezan, Soohyun Kim, Taylor I. Heckman, Fernanda A. Sebastiao, Zeinab Yazdi, Samah M.R. Abdelrazek, and Esteban Soto "USE OF TOPICAL TREATMENTS AND EFFECTS OF WATER TEMPERATURE ON WOUND HEALING IN COMMON CARP (CYPRINUS CARPIO)," Journal of Zoo and Wildlife Medicine 52(1), 103-116, (1 April 2021). https://doi.org/10.1638/2020-0072
Accepted: 13 November 2020; Published: 1 April 2021
JOURNAL ARTICLE
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