size Breeding two 8 pounders does not guarantee you will only get pups in the 8 pound range..same as with two 5 pounders. You have to look at the bloodline and see what size is behind them also. I had a small girl at 4 pounds who was a free whelper..gave me 3 litters of 4 pups each..but Candy's sire and dam were twice her size. I was a new breeder and could not figure out why, when bred to my 5 pound stud Candy would have 6 to 9 pound pups at adulthood.
I had a 6 3/4 pound male champion who had a both a 4 pound sire and dam...he sired mostly 5 pounds and under his entire breeding career..it is tricky. Most often when a Yorkie is 8 or 9 pound they are from a line of bigger dogs and you can get pups over 10 pounds quite often.
Right now I use a 3 pound sire with my girls in the 5 to 7 pound range. I will use a 5 to 6 pound male with them on occasion...I am not opposed to breeding a female over the standard size..you can reduce the adult size by using a smaller male, but I have not seen it work very well in reverse. You would need to use a 4 pound bitch with an 8 pound male and that is very risky. I don't advocate breeding females under 5 pounds for the most part.
The bigger the bitch, the bigger the litteris not true. I recently had a stud client who has a 5 pound female delivery 7 pups...one died. I have had 7 pounders produce one or two...dog breeding is not a science, it is an art..and Mother Nature sure is hard to predict. |