Skeletal dysplasia 2 (SD2) - Dwarfism is a hereditary disease which can be tested with a DNA test. Skeletal dysplasia 2 (SD2) in Labrador Retrievers is a hereditary form of mild disproportionate dwarfism occurring primarily in working lines of this breed. Hereditary disease has a very subtle short-legged phenotype. No obvious ocular or auditory involvement and secondary joint problems were detected in affected dogs like in some other diseases with short-legged phenotype. 

Inheritance: autosomal recessive - read more

Mutation: COL11A2 gene

Genetic test: The method used for genetic testing is extremely accurate and allows complete differentiation between affected animals, carriers and healthy dogs. DNA testing can be done at any age. 

Disease control: read more

DNA test sample: EDTA whole blood (1.0 ml) or buccal swabs. Detailed information about sampling can be found here.