Quality of raw and smoked fillets from clinically healthy Atlantic salmon, Salmo salar L., following an outbreak of pancreas disease (PD)

Pancreas disease (PD) is a viral disease of farmed salmonid fish, which causes huge economic losses. Pathological changes in skeletal muscle, pancreas and heart are hallmarks of PD. Stakeholders in the fish‐smoking industry have claimed that fillets from PD‐affected Atlantic salmon, Salmo salar L.,...

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Bibliographic Details
Published in:Journal of Fish Diseases
Main Authors: Taksdal, T., Wiik‐Nielsen, J., Birkeland, S., Dalgaard, Paw, Mørkøre, T.
Format: Article in Journal/Newspaper
Language:English
Published: 2012
Subjects:
Fillet
Colour
Texture
Smoked salmon
Myocarditis
Fibrosis
Atlantic salmon
Salmo salar
Online Access:https://orbit.dtu.dk/en/publications/39feb2ab-ecd9-4a2d-9ed6-df67ed57c209
https://doi.org/10.1111/j.1365-2761.2012.01428.x
Description
Summary:Pancreas disease (PD) is a viral disease of farmed salmonid fish, which causes huge economic losses. Pathological changes in skeletal muscle, pancreas and heart are hallmarks of PD. Stakeholders in the fish‐smoking industry have claimed that fillets from PD‐affected Atlantic salmon, Salmo salar L., are of poor quality. We therefore examined harvest‐ready, clinically healthy Atlantic salmon from a population of fish previously affected by PD. Histopathological changes in skeletal muscle tissues ranged from minor to severe. Fillet quality measurements showed that fish with severe skeletal muscle changes provided a paler raw fillet and a yellowish and harder cold‐smoked fillet than normal. PD had no significant effect on fillet gaping, bacteriological quality or off‐odour development during storage. An unexpected finding was a significant subendocardial fibrosis in 23% of the PD‐affected fish. The latter may indicate susceptibility to stress‐related heart failure.

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