If you are asking this question on a public forum, you might get some good advice, however that does not prepare you fully into breeding PROPERLY AND THROUGHLY. If you are asking this in forums and such, you are NOT ready to start breeding. Spay and neuter your current animals, spend many years of good research and talk to good reuputable breeders, register with local kennal associations and THEN consider first litter. UNTIL THEN YOU HAVE NO BUSINESS BREEDING YOUR DOGS.
Another back yarder in the making