Dog Siblings Breeding. Breeding dog siblings breeders who have bred siblings together have witnessed dog inbreeding effects, such as weakened immune systems and more autoimmune diseases. It’s a lot more trouble than it’s worth so please breed your animals outside of thier litter and parental lineage.

At the same time they invest real fortunes in males and females from other genetic lines. Even if neither of the dog siblings has current health issues, it can eventually cause indirect problems due to unnatural genetic material. Sibling puppies will have lots of fun together, but you have will have a lot of work to do.