You should be talking about Bomei, 1. Don't choose puppies bred by maternal inbreeding, puppies bred by cross-breeding, and puppies bred by mixed blood. Consider choosing puppies bred by paternal inbreeding. 3. A good racing dog is not necessarily a good breeding dog, but a good breeding dog will definitely produce an excellent racing dog. Therefore, when choosing puppies, don't unilaterally think that puppies born to dogs that have won prizes are good, and puppies born to dogs that don't enjoy the calendar are bad. Therefore, you must follow the basic principles and standards for selecting puppies when purchasing. Usually, a bitch with excellent pedigree has the best fourth birth. Because this is the best age for breeding bitches, puppies have the best genetic effect. 7. Pay special attention when choosing puppies. If the color of the puppies of the same birth changes too much or has miscellaneous hair, this litter of puppies will be of little value as breeding dogs in the future. 8. When choosing a male puppy, be sure to touch its testicles. If it is a pair, it means the value and possibility of a male dog. If you are a dog, you can't be a male dog and a racing dog. Can only be a common pet dog, the price is not too expensive. 9. Buy puppies from truly high-level breeding experts. Don't just say "buy and sell". First of all, show your love and enthusiasm, and make a clear commitment to cultivate it carefully in the future. Otherwise, it is impossible to get a good breed of puppy. Don't easily say that you want to buy a female puppy, because a real breeding expert will never easily transfer a fine breed female puppy to a lover he doesn't know. 10. When selecting puppies, pay attention to carefully observe the puppy's face, ears, genitals and other parts to see if there are traces of plastic surgery. If there are obvious traces, you should buy carefully.