Your Westie shouldn't be breeding at one. Maybe two or three but not one.
From 15-20 pounds.
Most male dogs are not good with puppies.If you have a litter try to put him with just one puppy and see how that works.
the old thyme bulldogs have 9-11 puppies
2-6 is the average amount for a Shepherd
1 year old
Your 9 month old yorkie shouldnt be having puppies, she is a puppy herself! That's like getting a 6 year old child pregnant! She's not ready for it, learn how to look after your animals properly!
A dog that's 17 in human years is OLD, and shouldn't be bred at all.
No, that's not too young. I have a rottie and shes 1 and has had puppies.
you shouldn't get a very old dog pregnant it is unhealthy for them
For real? 1 year. In dog years? Well, only dogs know that for sure. I assume you mean from birth.
about one year, thats when they mature
Age in my experience, in the last year a friends 11 year old westie has gone from a pink belly to an almost black one