You have big dreams of becoming the world's greatest dog trainer! Starting only with your puppy that you got as a birthday present when you went from toddler to child (who is, by now, a fully grown dog), you set out to breed and train dogs.

What you will need
You will need the “Pets” Expansion Pack (because duh, right?)
You will also need Nraas' “Mover,” since that eliminates the 8-person cap for a household size. Download here: http://nraas.wikispaces.com/Mover

Objective
Starting at the beginning of your “Young Adult” agespan, you must have thirty “perfect” hunting dogs in your household at one time before you die.

A dog is considered “perfect” he or she is …

1. Aggressive
2. Non-destructive
3. Loyal
4. Neat
5. Quiet, and
6. Hyper

Pre-Game Setup
Your sim will obviously need the “dog person” trait. Other than that, anything goes.

You've inherited a large fortune from your parents. So use console commands to give your household 1,000,000 simoleons in funds.

You can have whatever lifespan you want for Sims and dogs (short, medium, normal, long, or epic), but you cannot adjust the individual sliders beyond their default positions.

Your first dog will probably have to be a genius, and a hunter. No other traits are allowed at the beginning. Every other trait must be trained. The dog is also an adult, since your backstory is that he grew up with you.

Buy a large plot of land and set up about 30 dog houses, bowls, and boxes of toys. Build a shack for yourself so you can sleep, bathe, and eat.

Getting Started
Go around and become partners of every business in the city. This is how you'll make you're living. When you've become partners everwhere, go everywhere again and buy out the properties.

When you get home, your dog will likely have done some activities for you to scold or praise. After you're finished with the initial scolding and praising, get on the phone and adopt another dog of the opposite gender to start breeding.

You're not allowed to bring another human sim into the household. You have to do it alone.

When it comes to extending your lifespan, you can only use the Genie once per age range to extend your life. You can only use the “Young Again” potion once, and you cannot use Ambrosia, ever. Once you've ran out of ways of extending your lifespan, then that's it.

It would be a great idea to invest in the “fertility treatment for pets” lifetime reward … because duh!

Can you get thirty perfect dogs at one time before the Grim Reaper comes for you?!

This challenge would be very tough, especially the quiet trait sometimes is difficult to learn. Carl's sims 3 guilde also indicates that: "I'm not aware of a means of developing quiet."
http://www.carls-sims-3-guide.com/pets/traits.php

Have you given this challenge a try?
I can't imagine having over 10 dogs all with the aggressive trait. Also, i don't think you can train in the quiet trait.

You train quiet by scolding noisy behavior.

It's worked for my dogs, consistently.