Certification testing results of Labrador Retrievers of different exterior

Exterior Labrador retriever accepted standard of Labrador retriever breed in height of withers and girth of front pastern. Checking obedience and dexterity with all the examples showed a steady negative high-straight contact (r=-0.07. -0.46). Exterior Labrador retriever significantly affects the pass of certification tests that is recommended to consider when implementing the service dogs selection. These researches result that for Labrador retrievers it is advisable to choose small dogs with a short muzzle. It is expected at the same time the improvement in the results of certification testing.