View Single Post
Old 01-16-2009, 10:29 AM   #18
Amazing Yorkies
YT Featured Breeder
Donating Yorkie Yakker
 
Amazing Yorkies's Avatar
 
Join Date: Oct 2005
Location: Oregon
Posts: 1,552
Default

Quote:
Originally Posted by fannie View Post
From my understanding, a male gets his female genes from his mom. So, if you breed a brother to a sister, you're doubling up on those. That's why you're having problems.

Someone correct me if I'm wrong...
I went to an AKC seminar on breeding, and they explained it this way. The female is XX the male is XY. The male gets his X solely from his mother. The female pulls her XX from her Mom and Dad. Now, in a Brother-Sister breeding.. Brother (100% female chromosone is Mom's) sister (50% Mom) is a whole bunch of Mom's Chromosones, possibly causing birth defects.
It is most important NEVER to breed Mother to Son. His Female Chromosones are his mothers. Especially since you have Mom and son, and accidents are happening.
I've never seen a whole litter fade, which is just a term, not the cause, but there is several things that would cause an early loss.. Ecoli, Cocci, chilled puppies, herpes, worms, just to name a few.
I wish you luck! And I would have that male neutered yesterday!
__________________
Deb Sillers
816-261-8734 Cell
Amazing Yorkies is offline   Reply With Quote
Welcome Guest!
Not Registered?

Join today and remove this ad!