Table 1 Severity of Hereditary myotonia affecting pigs, intensity of the main clinical signs, and the respective affected animals.
From: A large intragenic deletion in the CLCN1 gene causes Hereditary Myotonia in pigs
Clinical myotonia severity scale | Muscle hypertrophy | Muscle stiffness | Startle response/ recumbency | Animals |
|---|---|---|---|---|
Absent | Absent | Absent | Absent | All control and heterozygous animals. |
Mild | Present | + | Absent | O |
Moderate | Present | ++ | + | A, B, C, D, and E |
Intense | Present | ++ | ++ | P, U, and V |