Because mongrel dogs have the following shortcomings: the dog's appearance is indecent, it is easy to mutate, there is no outstanding talent, and the value of the bred puppies is not high. In addition, hybrid dogs can't participate in the dog show. If the purpose of keeping a dog is breeding or exhibition, it is better to keep a purebred dog than to spend the same time and energy. However, mongrel dogs also have its advantages, the purchase price is lower and it is easy to raise.
In addition, the physical fitness of thin-string dogs is much better than that of purebred dogs. Through continuous breeding and training, string dogs have inherited more advantages from their parents, and their physical fitness is much better than other purebred dogs, so they are less likely to get sick.
Advantages of purebred dogs
Purebred dogs have the advantages of beautiful appearance, high IQ and high value of puppies after breeding. However, their shortcomings are also obvious, that is, the physical quality of purebred dogs is worse than that of hybrid dogs, and even ordinary temperature difference changes may make them sick, and purebred dogs are more susceptible to infectious diseases than hybrid dogs, and the cure rate is lower.
If you want to keep a healthy dog, then hybrids are a good choice. Some hybrids are excellent in appearance and IQ. If you want to keep a beautiful dog, then purebred dogs may be more suitable.