Breeders / Genetics and Health Question
I am in the process of looking for a breeder for a MAS. I am aware of the fact that these dogs can have some health problems also genetically related - which is why I am diligently searching for a responsible breeder. I have been asking breeders if they test for: CERF, OFA, CEA, HSF4 and MDR1 (maybe there are other things I am missing). I have recieved a myriad of responses as to what they believe is relevant, so now I am a bit confused as this doesn't seem to be so clear cut.
I would like to ask you:
What EXACTLY do I have to be careful of? Do BOTH dogs really have to be genetically tested for everything? Or should I rather ask – what would be acceptable if only one parent is tested (dominant vs recessive gene)?
Another angle: what things SHOULD both dogs be tested for?
Is hip dysplasia a problem or not a problem in these smaller dogs(the miniature ones)? One breeder said that it is not a problem.
I should mention that I am looking for a family pet which will be spayed (we want a female) so there is no issue of offspring in this case. I am also not looking for a show dog.
Thank you for helping out!