Development of spinal deformities in Atlantic salmon and Arctic charr fed diets supplemented with oxytetracycline

Some individuals within populations of Atlantic salmon Salmo salar and Arctic charr Salvelinus alpinus fed diets supplemented with oxytetracycline (OTC) developed spinal deformations. Possible differences in feed intake and growth of spinally deformed fish relative to fish without any deformities we...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Toften, H., Jobling, M.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1996
Subjects:
Arctic
Arctic charr
Atlantic salmon
Salmo salar
Salvelinus alpinus
Online Access:http://dx.doi.org/10.1111/j.1095-8649.1996.tb00063.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1996.tb00063.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1996.tb00063.x
Description
Summary:Some individuals within populations of Atlantic salmon Salmo salar and Arctic charr Salvelinus alpinus fed diets supplemented with oxytetracycline (OTC) developed spinal deformations. Possible differences in feed intake and growth of spinally deformed fish relative to fish without any deformities were investigated. Amongst Atlantic salmon, 17% of the fish fed OTC‐supplemented feed developed spinal fractures, whereas none of the fish receiving the basic feed did so. Despite deformation of the spinal column, the injured fish continued to feed and grow, but at lower rates than unaffected individuals. In contrast to Atlantic salmon, Arctic charr showed no signs of spinal fractures at any time during the 65‐day experiment.

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