Glossary

Working line vs show line

The split within one breed between dogs bred mainly for work or sport and dogs bred mainly for the show ring, which often differ in drive, build and energy.

Also called: working lines, show lines, field line, bench line, working vs show, show bred, working bred

Within a single breed, breeders may follow two goals. Working lines are bred for job ability: herding, hunting, sled pulling, police work or sport. Show lines are bred to match the breed standard in the conformation ring. Over generations the two can drift apart in build, coat, energy, drive and temperament.

The effect is noticeable in breeds such as the German Shepherd Dog, the Border Collie, the Labrador Retriever and the Golden Retriever. A working-line dog is often leaner, faster to react and in need of far more activity than a show-line dog of the same breed. Show lines are often heavier, with more coat and a calmer nature, but there are exceptions.

Neither line is better in general. The right one depends on what the owner wants. Ask a dog breeder about the parents' work or show records, their health testing and what homes each puppy suits.

Last reviewed November 8, 2026

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Related terms

Dog breeder A person who plans and raises litters of puppies; a responsible breeder health tests the parents, follows a breed standard and stays involved with each puppy. Conformation A dog show event in which each purebred dog is judged on how closely its structure and movement match its written breed standard. Breed standard The written description of an ideal dog of a breed, covering size, proportions, coat, colour, movement and temperament, used to judge dogs and guide breeding. Police K-9 A dog trained to assist law enforcement, usually in tracking, apprehending suspects and detecting drugs or explosives, working with one handler.