A "hobby kennel" refers to a small-scale dog breeding operation that is typically run as a personal interest or hobby rather than a large-scale commercial business.
I am a small hobby kennel striving to produce the highest quality animals for both competition and wonderful pet homes. (sierragoldenretrievers.com)
Our objective was to improve the breed, and for a small hobby kennel, we did quite well. (humanesociety.org)
RiverRock German Shepherds is a small hobby kennel in St. Cloud, MN dedicated to breeding outstanding show, performance, and companion dogs. (gsdca.org)