By Mayo Clinic Staff. An intravenous pyelogram (PIE-uh-low-gram), also called an excretory urogram, is an X-ray exam of your urinary tract. An intravenous pyelogram lets your doctor view your kidneys, your bladder and the tubes that carry urine from your kidneys to your bladder (ureters).
The silver, silver dapple, chocolate flax or Taffy gene. Silver, or silver dapple is the common term used for horses with a dilution gene that works to dilute black pigment. The gene usually causes a partial lightening of black pigment in the body coat and a more extreme lightening (or âsilveringâ) of the mane and tail.
a Double Dapple is that they will eventually get a normal perfectly healthy dog and that dog will look truly stunning (see picture below) with additional white patches over the normal single dapple. Double dapples can be bred by mating two dapples - the pups from that mating will be normal colors, single dapple and double dapple. If two double dapples are bred together then all the pups will be double dapples. Double dapples can be identified by patches of WHITE in addition to normal dapple markings. The big plus for double dapple breeders is a double dapple will always produce all dapple litters NO MATTER WHAT COLOR THE OTHER DOG IS so essentially this issue is more about disreputable breeders being greedy given dapples normally fetch more money than base colors and those who are prepared to maim a few dogs for the sake of pretty colors.