why is my dogs poop white?

Question
we had gotten a female 2 bread our dog with.when we got her she couldnt poop when she did the next day late it was hard white with a little yellow color 2 it.when she steped on it it turned to powder.what was wrong with her?

Answer
White stool can be due to many things such as problems absorbing food properly, insufficient enzyme activity in the gut, bad food that isn't digested properly, bad food (inadequate nutrition) inherited digestive issues etc.

If this is an ongoing thing, the dog needs to be seen by a vet and if there is a problem with enzyme deficiency etc she should not be bred as these can be passed on to the young. You don't want to breed dogs with digestive issues that are inheritable.

She should have a complete checkup prior to breeding anyway to make sure she doesn't have any other problems with her legs, elbows, eyes etc. I don't know what breed she is as you didn't mention it but any purebred dog should be vet checked, wormed, vaccinated and on heartworms and over two years old before breeding her.

Same goes for the male dog.
Get her to the vet and bring a fresh stool sample for them to look at and test.