Quote:
Originally Posted by pstinard  From the abstract of that paper (which has phenomenally large sample sizes):
"In all breeds, the overall proportion of the bitches that developed disease by 10 years of age was for pyometra 19%, MTs 13%, and either or both of two diseases 30%"
A 30 percent chance of developing pyometra or mammary tumors in unspayed dogs seems like an awfully high risk to take, unless there are factors that counterbalance the risk. The abstract doesn't give the data for Yorkies, but if the rate is anywhere near 30%, that seems like a strong argument for spaying before first heat. If I have time, I'll try to check out the full text of this article on Monday and I'll let you know if it has data specific to Yorkies. |
Thanks Phil that would be good if you can do that. Yes I read the summation but also the comments about understanding the variability of mammary cancer/pyrometra by breed. You will recall with the USA Viszla study that the incident rate was surprisingly very low on female Viszlas...
I also wonder what the #1 cause of death is in Sweden; if it is the same as in North America with all cancer being #1?