Doc when it comes to dogs I am usually paying attention. And I am still confused, if the chances of getting a Dysplastic pup from the two examples I gave above using the statistics, all pups will have the same chance in each of them as being dysplastic. In other words you are going to have to explain to the same percentage of owners a dysplastic pup. Heck excellent to excellent there is a chance you will have to explain it and you did everything at the top level.

I am not trying to say what is right or wrong but the facts show that the results are the same in my 2 scenarios, so how is one breeding more responsible than another? Just a question.
 
  This is all in the back of my mind because I have Deke with excellent hips and his backround as far as I can tell on OFA are Excellent and Good, My female Bella comes from Good and Excellent hips also. I am biting my nails waiting to see how she will be and I will have a decision to make as to breeding her if she ended up fair,  BUT from the stats it appears I would be producing the same thing if both of them were good. She is one of the BEST first year duck dogs I have ever seen and she points very well. What to do? I will cross the bridge when I get there and hopefully it is a non-issue.

Good to see different takes on the subject!  But all other things aside, if you add black paint to a larger quantity of white paint it is in fact no longer white.  By the same reasoning,  just adding larger and larger quantities of pure white paint will never make the original mix pure white because a different pigment has already been introduced.   And so it is with dogs, people or anything else your breeding or mixing.   I think all will agree that you can breed good traits into a dog but sometime, somewhere down the line the bad or undesireable traits will show up again (hence the chart).  As much as anyone may try, bad traits can't be bread out of a species (paraphrased quote from a former Biology Professor).  Even Ivory soap is only 99 44/100 percent pure and its manufactured!?  You can't fool Mother Nature but sometimes she can, will and does fool all of us.

 

Dana 

I have not done Bella yet we are a year away from a prospective breeding. As far as Cerf. there are some cerf categories that you can still breed and considered passing. Here is the link to the cerf website. you can read up on it. but here is info right from the site:

The category system was implemented in May 1998. All dogs that have a category listed are still considered breedable dogs, however they have a condition indicated on the exam form other than normal that is considered a "Breeders Option" in the ACVO Ocular Disorders Book. The ACVO Genetics Committee has devised this system to help control various conditions that are not necessarily problematic, do not cause vision impairment, and may not be hereditary. They recommend that you try to breed these dogs to others that do not have the same category.

Simply because a dog has a condition listed on the back of a CERF certificate does NOT mean that any dog with that condition may be certified. The exam form must first be compared with a set of guidelines listed by breed in the ACVO Book and then if it passes it will get a certification.

The categories are simply laid out in order of location with category A being eyelid problems, category B being Third Eyelid, C being Cornea problems, D being Uvea problems, E being Lens problems, F being Vitreous problems, G being Fundus problems.

http://www.vmdb.org/cerf.html

Unless I’m reading the chart wrong from the link Doc E supplied. You actually have less dysplastic than good to good if the sire is OFA fair and the dam is OFA excellent 7.7% dysplastic. Interestingly it also follows suit with a sire OFA fair dam OFA good you get 12% vs. sire OFA good vs. female OFA fair 12.2%. Not a huge difference but indicates the pups receive more of the hip genetics from the dam than the sire. I wonder how many other genes are received more from the dam than the sire or if it is just a coincidence??  At any rate shows the dam is just as important as or more important than the sire in the genetic makeup of the pups.