 genes
No, all Yorkies do not carry non-standard color genes...or Parti gene, etc.
There are no set answers as to how old or often to breed. You must go bitch by bitch..size., ease of whelping and caring for the pups/nursing etc, no additonal problems before or after...
I breed at the second or third season, or when I feel the bitch is ready mentally and physically. I do not breed before 14 months...and stop at 4 to 5 depends on many factors when I retire them...but have bred to 6..had one bitch whelp 6 pups two weeks before her 7th year, but she had not been bred in two years. |