Prediction of the fate of oxytetracycline and oxolinic acid in a fish pond using simulation model: A preliminary study

Phong, Thai Khanh, Nhung, Dang Thi Tuyet, Hiramatsu, Kazuaki, & Watanabe, Hirozumi (2009) Prediction of the fate of oxytetracycline and oxolinic acid in a fish pond using simulation model: A preliminary study. Journal of the Faculty of Agriculture, 54(2), pp. 513-521.

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Abstract

The fate of two popular antibiotics, oxytetracycline and oxolinic acid, in a fish pond were simulated using a computational model. The VDC model, which is designed based on a model for predicting pesticide fate and transport in paddy fields, was modified to take into account the differences between the pond and the paddies as well as those between the fish and the rice plant behaviors. The pond conditions were set following the typical practice in South East Asia aquaculture. The two antibiotics were administered to the animal in the pond through medicated feed during a period of 5 days as in actual practice. Concentrations of oxytetracycline in pond water were higher than those of oxolinic acid at the beginning of the simulation. Dissipation rate of oxytetracycline is also higher as it is more readily available for degradation in the water. For the long term, oxolinic acid was present at higher concentration than oxytetracycline in pond water as well as pond sediment. The simulated results were expected to be conservative and can be useful for the lower tier assessment of exposure risk of veterinary medicine in aquaculture industry but more data are needed for the complete validation of the model.

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3 citations in Web of Science®

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ID Code: 88998
Item Type: Journal Article
Refereed: Yes
Keywords: Fate, Model, Risk assessment, VDC, Veterinary medicine
ISSN: 0023-6152
Deposited On: 14 Oct 2015 03:58
Last Modified: 23 Oct 2015 04:51

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