The requirements for breeding bitch selection are 1. the bitch is healthy and free of disease; 2. she gives birth to many litters and is fertile; 3. her breasts are well developed and her lactation is strong so that she can help nurse her offspring; 4. she is maternal and can bring up her puppies well. The characteristics of a good maternal dog will flocculate the nest before giving birth, can nurse the puppies regularly after giving birth, rarely leave the nest, often licking the puppies with her tongue. 1 month later can spit food to feed the puppies, when the puppies climb out of the nest can use her mouth to carry the puppies into the nest. If the opposite is true, the bitch is considered to be a bad mother and selection is not recommended. There are some bitches that have the habit of eating puppies or defecating in the litter, and bitches with these two behaviors should never be kept for breeding. The puppies born to these bitches as breeders must be carried away to avoid being eaten by the bitch or being sick due to the poor environment.
