We rehomed an approx 18mth old choc lab in January. He came with his breed lines on an official document [ sorry don't know the correct term] and was "rescued" by a lab breeder who told us that he had good lines. Very good hip and elbow scores.
Not that we want to breed from as we had him desexed.
A number of people in our area who have labs have commented on his confirmation and asked " What bred of dog is he ?" When we state the obvious ie a choc lab they seem incredulous. He has a relatively deep chest with a body line that rises in an "athletic" line to his back legs. His general confirmation is strong, tight waisted without any excess fat. He now weighs 34kg.
I read on Wikipedia that there's two general lines in the lab breed. A "show line" ie heavier set and a "field line" ie more athletic. Is this correct ?