Abstract

Parental Background Predisposes Baltic Salmon Fry to M74 Syndrome

Highlights

  • M74 syndrome is a thiamine responsive disease of Baltic salmon leading to the death of most yolksac fry of certain females (see e.g. Koski et al (1999))

  • Almost all yolk-sac fry derived from wild females died, but the cumulative mortality of the offspring of farmed females varied between 0% and 24%

  • Symptoms associated with M74 were seen in the fry of the both cross-fertilization groups originating from wild females, but not in those from farmed females

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Summary

Introduction

M74 syndrome is a thiamine responsive disease of Baltic salmon (the Baltic group of Salmo salar L.) leading to the death of most yolksac fry of certain females (see e.g. Koski et al (1999)). Cumulative yolksac mortality following experimental cross-fertilization of wild and farmed Baltic salmon. Each bar represents the cumulative mortality of the yolk-sac fry of a certain female x male combination.

Results
Conclusion

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