How the kennel chooses a pair for a litter, and why temperament is matched before type

The question usually arrives before the litter does. A family has been reading for months, they are on a waiting list, and they want to know one thing: how do you decide which two dogs to breed? It is a fair question, and the answer says more about a kennel than any photograph. This is the order we work in.

A pedigree is a record, not a recommendation

A five-generation pedigree holds sixty-two dogs. What it tells you is factual: which dogs were registered, which were screened for hip and elbow dysplasia, which were shown, worked or surveyed for breeding. What it does not tell you is whether any of them passed on what they themselves were. A pedigree is where a decision starts, never the reason for one on its own. Anyone who hands you five generations and stops talking has given you a family tree, not an argument.

Reading a pedigree for what repeats

The first pass is closer to counting than to reading. Which names appear more than once, and on which side. A dog that appears twice in five generations, behind both the sire and the dam, is worth knowing about, so we find out what it produced in the litters it was used in.

Then the harder question. Names repeat easily; traits do not. Two dogs can share a grandsire and share nothing else, one with a strong topline and steady nerves, one narrow and sharp. What we look for is a trait that has come down the same line more than once and that we can still see in the dog standing in front of us. A pedigree that repeats a name is ordinary. A pedigree that repeats a quality is information.

Does the same name in a pedigree mean the same dog will come back?

No, and this is where most pedigree conversations go wrong. Line breeding concentrates what is already in a family. It does not copy a dog. If the animal behind the repeated name had a soft topline, concentration can put that soft topline in front of you twice as fast as the head you were aiming for. This is why the ADRK, the breed's country-of-origin club in Germany, keeps the stud book and regulates in its breeding rules how closely two dogs may be mated. They exist because the club has watched what happens when a family is closed too tightly.

Health screening comes before temperament and type

Hips and elbows first. In Germany both are graded and recorded, and a dog has to fall within the permitted grades before it is approved for breeding. In North America the OFA grades hips and elbows and publishes the result under the dog's registered name. Either way we ask for the certificate, not a sentence about the certificate. A dog with no screening result is not a candidate, however well it moves across a yard. A dog whose result sits at the edge of what is permitted is a candidate only with a written reason.

Temperament is matched before type

The FCI standard for the breed, number 147, describes the Rottweiler's character in plain words: good-natured and placid in basic disposition, devoted, obedient and biddable, eager to work, self-assured with steady nerves, alert to its surroundings. Those are not compliments. They are the specification, and a breed survey is where a club checks that a dog still meets it.

So temperament is the first thing we try to match, not the last. If both dogs are correct in type but both are reserved and slow to accept a stranger, a litter from that pair will not average out. It will lean. Two hard, forward dogs do not produce a balanced puppy either; they produce puppies that have to be managed. Type faults are visible and can be worked with. Temperament is what a family lives with every day for ten years.

What does complementarity mean in practice?

Not opposites. Matching one dog's fault against the other dog's opposite fault gives you litters that are uneven, some correct and some not, with no way to tell which at eight weeks. What we mean by complementarity is narrower.

First, neither dog carries the same known weakness. If both lines run light in bone, or both have tooth faults behind them, that is not a match, whatever else is good. Second, one dog should be strong where the other's line is only adequate, and strong in a way already proven in that dog's own get rather than in a description of the dog.

All of it happens inside the standard. Complementarity is not a licence to breed away from the breed. It is the small set of adjustments available inside a breed that already has a written specification.

The sheet we keep on each dog

Every dog here has a page. Screening results with the date and the issuing body. Height and weight taken as an adult, not as a hopeful estimate at fourteen months. Character notes: how the dog is with strangers, with children, with other dogs, on a lead, in a crowd. Then the part that matters most, what the dog has already produced. Which puppies from which litter, how they were in the whelping box, which were forward and which slow to switch on, and what the owners reported at one year and at two.

A first mating is a hypothesis. A repeat mating is made only when the first litter came out even and the reports at two years did not contradict what we saw at eight weeks.

What a visit should show you, and why some seasons pass with no litter

If you are choosing a kennel rather than a puppy, visit before the litter exists. Watch how the dam behaves when a stranger arrives, whether she comes forward or is shut away. Ask to see the records and notice whether they are documents or stories. Ask for the sire's screening results even when he lives in another country; a kennel that keeps records can produce them.

Some seasons a bitch is not bred. The screening is not there, the temperament match is wrong, or the previous litter was uneven, and the page goes back in the folder for a year. That is a decision like any other and is recorded like one. A kennel that has never skipped a season is either very lucky or not reading its own records.

What to ask

You do not need to learn pedigrees to find out how a litter was planned. Ask one question: why these two dogs? A kennel that planned the litter answers in specifics, the screening results, the temperament of the dam, what the sire has produced before, what was thin on one side and supplied by the other. A kennel that did not plan it answers with the word bloodlines. Then ask for the hip and elbow certificates by registered name, and what the last litter from that pair is like now at two years old. Those two answers will tell you more than any pedigree you are handed.