Line breeding means inbreeding on a specific line of a dog or a bitch.
The pedigree below shows the practice of breeding with half littermates who have the same sire,
The line breeding is done on Abd des Grimoires de Kerfa, a Sloughi imported from Morocco, and his line.

Line breeding can be a good tool to increase the influence of an outstanding proven dog or bitch
but should never be used with unproven dogs or dogs with health or temperament problems
because of the increased risk of genetic diseases inbreeding can bring along.
 

This is the 4 generations Pedigree of Golea Kahloul de La Treille
Coefficient of inbreeding of 21.9 %

Parents                           Grandparents                                  Great Grandparents                               Great great Grandparents