I knew if any one would know, it would be you Julie

!
Thanks for expanding on each, it's just the kind of info I'm seeking. I'll definitely purchase K9 Nutrition today and have placed a hold at the library on Dr. Pitcairn's book, but will have to wait in a short line to get it - figures! For me, those two seem to compliment each other. I'll also peruse Volhard's book, as I'm interested in physio info too and certain it'll be next!
Again, many thanks

! ~ Lisa