Breeding

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To have more little bundles of fur running around the house, consider breeding pets. Keep in mind that each pet will take up a family slot. In The Sims: Unleashed, a lot can only have a total of eight pets or Sims in one house. In The Sims 2: Pets, a lot can have a total of ten Sims and pets, but no more than eight Sims and no more than six pets. Obviously, the basic thing needed for breeding is two pets of the same species and different gender. But they can't just be made to breed on command, and just like people they will need to get to know each other. If they misbehave with one another, use 'Scold' so they learn to get along.

The Sims: Unleashed
In The Sims: Unleashed, when two pets of the same species and opposite sexes perform the "snuggle" interaction, the player will get a message asking whether or not to go through with the breeding process. Just like having a Sim baby, a new item appears; a "maternity tent", which the mother will regularly check on if she's in a good mood. The player doesn't have to take care of the puppy or kitten (although they can view the tent), but they do have to take care of the mother, since her mood will reflect on her baby. Unhappy mothers will neglect the puppy or kitten, in which case Animal Control will come to take it away. If the puppy or kitten is not taken away, it will become an adult after three days. At that time, the player must choose whether the family will keep the new pet or give it up. If the player chooses to keep it, the new adult will appear, and can be named. Otherwise, if the player chooses to give it up, it will disappear from the game, and the family will get some cash. The cash earned can be anything from §250 for two parents with very low skills to §3,000 for parents with maximum skills. A kitten or puppy produced by breeding will have no personality points.

The exact formula is: $$P = \frac{( m_h + m_t + m_o + f_h + f_t + f_o )}{2}$$

When $$P >= 250$$

Where
 * $$P =$$ profit in simoleans
 * $$m_h =$$ mother's hunting skill
 * $$m_t =$$ mother's tricks skill
 * $$m_o =$$ mother's obedience skill
 * $$f_h =$$ father's hunting skill
 * $$f_t =$$ father's tricks skill
 * $$f_o =$$ father's obedience skill

Note than the skills are on the 0-1000 scale used in the code, not the 0-10 scale displayed in-game. If $$P < 250$$ then the profit made is set to 250.

The Sims 2: Pets
In The Sims 2 Pets, a pet house is required, then a Sim has the option to command a pet to try to have puppies/kittens with another pet. The Sim must have a good relationship with the selected pet to successfully command it, as well as the two pets which are wished to breed. If successful, the two pets will go into a pet house and WooHoo. If the female pet is pregnant the player will hear the same music that chimes when a Sim conceives.

Pregnant female pets show little noticeable signs of pregnancy, and can go to work as normal. However they do suffer from the same decrease in needs as a pregnant Sim. They give birth after three days like Sims. Pets can produce a litter of up to 4 puppies or kittens, depending on how crowded the Sim household is.

The player also has the option of keeping a pet's offspring, giving them up for adoption or selling them. The simoleons earned by selling the litter is based on how well trained the pet is. More training equals more simoleons!

Notes & Tips

 * If you want your pets to have a better relationship, lock them in a room with two food bowls and two beds. Don't put any toys in the room, so when the pets get bored they will be forced to play with each other.


 * You may breed a large dog and a small dog, but the puppies will have only their mother's genetics, and will be the same size as their mother.

Another way to increase the relationship between two pets is to individually praise them whenever they are playful or playful towards others. Eventually when the pet learns to be playful, reached when the skill bubble pops, a Sim can command them to "play with" and select any pet on the lot. Having the pets play with one another increases the relationship.

The Sims 3: Pets
Dogs and Cats can have litters as in the The Sims 2: Pets, and Horses can have foals