ALL OF OUR BABIES ARE A FIRST GENERATION
CROSS... MOMS ARE SHIH TZU'S AND DAD IS A YORKIE....
So why cross breed? Are
The puppies healthier? When the parent dogs don't share the same known
genetic health issues the percentage of cross breed dogs with genetic
problems is MUCH lower than purebred dogs because the gene pool is
mixed.There
are several genetic issues that are shared by the Shih Tzu and Yorkie.
Here is a list of SOME
health issues known in the Shih Tzu and Yorkie Breed.
Liver-Portosystemic
Shunt
Knees-Patellar Luxation
Retinal Dysplasia - Eye Problem
So when doing a F1(first generation)
or F2 or even F3, you need to make sure your breeder is doing genetic
testing, so the chance of the parents passing any of these's issues to
their off spring is very low to none.
Hetaerists effect and hybrid vigor. Vigor means, "Physical or mental strength, energy, or force."
ONLY works with genetic issues that are
known in only one of the parent breeds. This does not work with issues
in both breed. For these's issues it is like breeding purebred to
purebred.
To help you understand the concept we here is an example:
In general we will call the first purebred "purebred-A", and the second "purebred-B".
F1 = 1st generation puppy -
50% purebred-A and 50% purebred-B - for example, a Yorkie to Shih tzu, this is first generation.
