Quote:
Originally Posted by char7  Some dogs have what is called "silent heats" meaning little or no signs of heat are seen such as swelling or bleeding.
Another is called "split heats" where dogs goes into a heat cycle but don't ovulate but then go into a fertile heat period weeks later.
This makes it difficult to determine the correct breeding dates. This is where progesterone testing becomes important. The first significant, sustained rise in progesterone usually coincides with the "LH Surge". This is important because ovulation occurs about 48 hours after the LH surge. |
Yes, I know about split heats. Lacijo, the first female had a split heat this time and her last heat too. I don't know what causes it but I think maybe changing dog food just before she came into heat might have a part in it. The timing is too coincidental. Sylvia