
and as the above takes years to learn having reliable mentors who have this information at their fingertips will be needed the first time you venture into breeding.
These will often be the owners of the sire and Dam of your foundation bitch, but also others whose stock you admire.
There is no shortcut you have to get in there and involved in your breed.
Meet the dogs, if you can arrange to see the oldies at home behind the ones you admire, watch the young classes to see what studs and bitches produce in their offspring especially those with similar pedigrees to your own. Then study the health data available.
As has been said no breed or line in a breed is free from negative traits, but by avoiding combinations that have produced issues before you can move forward. Some issues only occur when certain lines/dogs are put together yet to other lines/dogs produce well, and problem free.
Many health issues are not governed by single genes, and need to come together in an unhappy alliance to cause a problem.