Testing before breeding is the standard of care. Health testing is the crucial factor that separates responsible breeders from unethical breeders. These tests are tools to prevent problems; there is absolutely no excuse not to utilize these tools. Every breed and mix of dog is predisposed to their own set of diseases. Therefore, the tests your dog needs prior to breeding depends upon their breed(s).
Responsible dog breeders and, consequently, responsibly-bred dogs, are in short supply. Breeders come in several categories, each having a very different approach to breeding and raising dogs. Without a solid understanding of what constitutes ethical breeding practices, it can be challenging to identify a reputable breeder from one who may be cutting corners or exploiting their animals for profit.
Puppy mills are readily available, extremely accessible, and have a prevalent presence in the dog breeding world. Dishonest breeders are adept at deceiving buyers; slick websites and persuasive marketing techniques make it crucial to educate yourself on prioritizing the health and well-being of the dog and support reputable breeders that practice ethically.