Breeding

The Basics
To breed, go into "quick errands", scroll down, and select "breeding". Then, you'll be taken to a menu that looks like this: It'll show a list of all male and female dogs, if you hover over their icons it'll show all of their statistics. At the top right, it'll show how many kennel slots (or dogs) you need before you can breed. Once you select your male and female a confirmation pop-up will                       appear with some information, such as your selected male and female                will not be available for your use 4 in-game weeks, by that time the                     puppy will have been born but not yet ready to go to your kennel.

This is also the image background that appears for the confirmation information pop-up.

Conditioning
Once your puppy has been born you'll be asked to choose a name for it. Afterwards, it sends you to the kennel screen. Every month you'll get to try and condition the aptitude, skill, and faults of the puppy. This will go on for 3 times before the puppy is fully grown and comes to live with you at your kennel. Breeding can be very useful for natural aptitudes. If you're lucky and have two dogs of the same naturality and opposite sex you can breed them and it is guaranteed they will also be a natural in that aptitude.

It's also worthy to note that mix-breeds simply do not exist if you breed a black labrador with a schnauzer the puppy will either be a black labrador or a schnauzer.

Breeding is for typically late-game as you need many dogs to breed, as such, it was likely made for older players to be able to get the perfect dog with the aptitudes, faults, and skills they want them to have.

Once you bring a puppy home, however, it is JUST like a store-bought dog, 4 fatigue cap and 0 skill, except it will have the "related" status to its parents. If the dogs are related, they can't breed with each other.