Can anyone shed some light on this problem especially the genetic version. Also is anyone aware of any breeders who have bred from a dog with this problem dog or bitch and know what the outcome was i.e was it passed onto the pups??

Hello Guest

Here is a very useful link for the above problem, sorry you'll have to cut and paste the address, as I can't do the links directly on here :-(
http://www.marvistavet.com/html/body_megaesophagus.html
Hope this is of use.