My dog's progesterone is 63.3, 4 days into her heat. When to breed?

Progesterone results can be expressed in ng/ml or nmol/L, so it's important to know how Ellie's number was expressed. I can say that typically ovulation occurs at a progesterone level of 5mg/ml, but there is no ideal level of progesterone. Peak fertility can occur at 10, 30, or even higher levels depending on the dog. If Ellie is willing, I would try to breed her today. I hope this helps!

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! The progesterone test can be done every 2-3 days starting about 3-5 days into the heat.The beginning progesterone levels are typically less than 1.0 ng/ml until the day before the LH surge. The day of the LH spike, serum progesterone concentrations are 2-3 ng/ml; the day following the LH surge, the serum progesterone concentration is 3-4 ng/ml. Ovulation occurs at a progesterone level of 5 ng/ml. The aim is to identify when the progesterone level reaches 2.5 ng/ml. Natural breeding should occur 3 days after the 2.5 ng/ml mark. Since you are in Pakistan I am not sure what units your Progeterone level of 19 is. If it is in ng/ml you are likely too late this time around. You can definitely try to breed her now. I hope this helps and feel free to repost if your measurements are not ng/ml.

Continue to monitor her progesterone levels every couple days. Ovulation occurs when the progesterone level reaches 5ng/ml. Evaluation of vaginal cytology will also help to determine the best time to breed her.

I am guessing that you had a progesterone level checked, and that it was measured in ng/ml. A progesterone of 0.2 would suggest that she is potentially in anestrus or proestrus and has not yet ovulated. To really know what's going on with her heat cycle we typically will also perform a vaginal cytology to look for characteristic changes in the cells that line the vagina. I would recommend talking to your veterinarian about the test results - they might be able to give a better idea of what might be happening in her particular case.

The ovulation in dogs usually happens between 8 and 12 day from the beginning of the season (so from the day you noticed that she is bleeding). At that time the discharge becomes light red or pink. If this is day 10 for Daisy, you should take her to the stud dog and see if she will be receptive. If not, repeat the visit in 2 days time.

The LH surge can occur anywhere between 3 and 28 days after the first observable signs of heat, although the average is 8-12 days. Ovulation occurs 2 days after the LH surge. The eggs then take an additional 2 to 3 days to complete maturation. At that point they can support fertilization and live an additional 48-72 hours.

This is difficult to say but, on average, most dogs ovulate and are receptive around day 11 of the heat cycle. The discharge from the vulva is usually less bloody and the female will be actively looking for a male.