Inbreeding doesn't produce smaller dogs; breeding to small dogs is what produces small dogs. For example, these inbred dogs were actually larger than the dogs they were inbred on:
- Silverback (a 36 lber) was triple-bred on Ch Hammer, who was a 32 lber.
- Cherry Coke (a 32 lber) was double-bred on Coca Cola, a 26-lber.
Although my dogs are small in general, what brought the size down "in general" wasn't any inbreeding I did, it was simply using small dogs to begin with, not my inbreeding. If Ch Hammer would have been a 45 (instead of a 32), and if Coca Cola would have been a 39 (instead of a 26), then my highly-inbred family of dogs would have been in the high-30s/mid-40s, rather than in the high-20s/mid-30s.
It was only because I selected small dogs to linebreed on to begin with that made my dogs small, not any inbreeding or linebreeding "by itself"
Actually, there are many highly-inbred strains that are still big in size ... Yellow dogs and OFRN dogs, for example, are all highly-inbred/linebred strains that still remain very large dogs in general.
Jack