Requirements must be met before pairing. When performing dysplasia studies, the procedure for performing joint dysplasia studies of EKL dogs must be followed.

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In addition, breeding must also be based on the regulation of the EKL studbook, according to which:

• Female dogs aged 18 months to 9 years can be used in breeding. Male dogs can be used in breeding from the age of 10 months.
• A female can be mated again if the previous litter is at least 8 months old.
• The same combination of parents can be used up to three times in breeding.

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According to the Labrador Retriever Breeding Program 2009-2013:

• It is not recommended to use a dog diagnosed with cruciate ligament rupture, joint development disorders or other joint diseases in breeding.
• In breeding, preference should be given to dogs that have no problems with mating or calving.
• Overuse of fashion men must be avoided. The number of offspring of one dog should not exceed 10% of the number of puppies born in two consecutive years or 5% in four consecutive years.
• Dogs that are highly allergic or have recurring inflammations should not be mated with each other, but should be mated with dogs that do not have similar problems. In breeding, the use of timid and aggressive dogs is frowned upon.
• To maintain and increase the participation activity of Labradors in breed and work tests.
• Avoid emphasizing and breeding extreme characteristics in the exterior.