What are the ten importance of animal breeding to the livestock farmers?

There are many advantages but I will keep this short

1. For quantaty: to breed animals for foods in large amounts

2. For selective breeding: to improve certain qualities in breeds of animails by breeding the male with the best qualities with the female with the best qualities. This happens in nature with the Alpha male and Alpha female breeding (natural selection), but people for centuries have been breeding certain animals with the right qualities to improve them for our own purposes - ie this is where we get certain Dog Breeds from (all domesticated dogs come from wild dogs such as wolves, but the 'wolf' DNA is nearly completely bred out of them nowadays). Other examples - horses (for racing, pulling carts, hunting, etc), cows (for best milk, meat, showing), etc, etc....