@Alsohuman
If you were planning to breed her you would have already had eye screening and the appropriate dna tests for certain high risk conditions (3 in the case of JRTs) and you would be getting yourself KC registered, have a KC registered mentor. You should also be making sure the stud is fully health tested and KC registered as well, otherwise you are risking ill puppies
And how do you know I won’t have those tests done? I, too, am pretty cynical about the KC and won’t be going anywhere near it. If my bitch has a litter, there’s already a waiting list for the puppies based on their familiarity with the putative mother’s intelligence, character and beauty. No money will change hands. So you can cut out the mansplaining.
I think the point here was that you seem pretty determined to breed from her based on
the putative mother’s intelligence, character and beauty. No mention of the relevant tests; whether your bitch is a carrier can't be determined just by looking at here, there needs to be testing done.
I know of a couple of examples from different breeds, neither of them JRT but both popular breeds.
First one Miniature Poodles. These need a PRA test, to indicate whether they are a carrier. They can be classified A, B or C, and this can ONLY be found out by blood testing. If you have an "A" dog, all is fine. If you have a "B" dog, you should ONLY breed it to an "A" and then only if it's a very valuable blood line & get the puppies tested. If you have a "C" dog, don't even think about it. Soon after testing came out, one of the top stud dogs in the country was found to be "C", so guaranteed to pass the gene on to it's descendants, despite being a top winner & highly popular at stud prior to this. All it's offspring were tested as "B" or "C" depending on the bitch used.
Another case - German Shepherds. A friend paid a small fortune for a bitch by a top internationally recognised show dog, out of the first litter of another very well bred bitch. This poor puppy had so many congenital problems, many of which tend to be inherited, that she had to be put down. Turns out that neither parent had been checked for these, and though hip scored neither had been elbow scored (on of the puppy's biggest problems.
SimonJT isn't "mansplaining", all the comments have been common sense to anyone who knows much about dog breeding. Now I don't know much about JRTs, as my experience has been with the breeds above, but I DO know that if nothing else any person thinking of breeding from their bitch should be checking with the relevant breed association regarding testing, also suitable bloodlines. Just dismissing earlier questions on the subject saying you hate the KC and your bitch is beautiful, doesn't come across very well.