The Effects of Heart and Skeletal Muscle Inflammation and Cardiomyopathy Syndrome on Creatine Kinase and Lactate Dehydrogenase Levels in Atlantic Salmon (Salmo salar L.)

Table 1

Semiquantitative lesion scoring system adapted from McLoughlin et al. [34]. System covers heart and skeletal muscle lesions separately. Lesions starting from 0 (healthy tissue) to 3 (severe changes). (a) Heart lesion classification. (b) Skeletal muscle classification.

Score	Description
(a)
0	Normal appearance
1	Focal myocytic necrosis ± inflammation (<50 fibers affected)
2	Multifocal myocytic necrosis ± inflammation (50–100 fibers affected)
3	Severe diffuse myocytic necrosis ± inflammation (>100 fibers affected)
(b)
0	Normal appearance
1	Focal myocytic necrosis ± inflammation
2	Multifocal myocytic necrosis ± inflammation
3	Severe diffuse myocytic necrosis ± inflammation