Seven mutts become first test-tube puppies in world
I wonder what, if any, the negative ramifications of this will be ?
Quote:
A team of veterinarians, scientists and lab workers gathered around a surrogate hound and watched her give birth to seven half-pound puppies, the first dogs ever conceived in a test tube.
The puppies born July 10 are a mix of beagle, Labrador and cocker spaniel and are now healthy 5-month-olds, Travis said. All but one female were adopted. She’s being kept by the lab to have her own litter.
In vitro fertilization, the process of fertilizing an egg with sperm outside the body, is widely used to assist human reproduction these days. The first human birth from IVF took place in 1978.
But IVF efforts with dogs repeatedly failed until now, according to Dr. Pierre Comizzoli, a reproductive physiologist for the Smithsonian Conservation Biology Institute in Front Royal, Virginia, which works with Cornell.
“The biology of the dog is really, really different than humans,” Comizzoli said. Dog pregnancies last only two months and females go into heat just once or twice a year, releasing immature eggs instead of mature eggs needed for IVF.
An earlier experiment at Cornell helped pave the way. In 2013 at Cornell, Klondike became the first puppy born from a frozen embryo. Klondike’s beagle mother was fertilized using artificial insemination. Her embryos were collected, frozen and implanted in Klondike’s surrogate mother.
Comizzoli described the birth of the seven puppies “as a huge breakthrough.”
read more: http://www.durangoherald.com/article...151219909/-1/s
