I'm not a Breeder, but here's a site you should look at. It will answer some of you questions  
http://www.debbiejensen.com/whelping.html 
I do know both the Male & Female have to be tested before they breed.
How much reading has your cousin done on Breeding? If this is her first time please make sure she researches as much as she can before you Breed.
Good Luck!! 
 
  
 