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Progesterone Levels - Discharge

Equine-Reproduction.com Bulletin Board » Abortion and Pregnancy Loss » Progesterone Levels - Discharge « Previous Next »


Author Message
 

Thomas Spinks
Neonate
Username: Rpants

Post Number: 1
Registered: 09-2006
Posted on Thursday, September 14, 2006 - 11:24 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

My mare was u/s at 75 days and vet saw parts to the foal and said he thought he saw a heartbeat. He said everything looks ok. But was worried about some discharge that he said could be a bladder infection. This mare is on regumate and has been since day 50 because he didn't like the uterine tone at the time.
He took a progesterone test again and the progesterone has been getting lower throughout the pregnancy. First time it was 12.8, second time it was 6.7, and this time he didn't say exactly what it was, but he said it was at a level of an open mare between cycles.

These tests were all taken at two times during the day and averaged (taken 8am and 6pm) for the results I noted above.

Is this a very bad indication?
 

Jos
Board Administrator
Username: Admin

Post Number: 1014
Registered: 10-1999
Posted on Thursday, September 14, 2006 - 08:47 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

There are several important factors that you should be aware of in order to assist you in making your decision as to whether this is something you need to be concerned about or not:

  • Uterine tone starts to decrease around 30-35 days and the uterus is nowhere near as toned at 50 days as it is at 25;
  • Progesterone levels will fluctuate significantly through the course of the day and from day to day;
  • It is generally agreed among experts that the only way to get an accurate evaluation of progesterone levels in the pregnant mare is to take blood samples 3-4 times a day for 3-4 days in a row;
  • It is also generaly agreed that fewer samples may result in an inaccurate evaluation;
  • Progesterone levels will normally peak typically around 90 days of pregnancy and decline from thereon until about 210 days of pregnancy when they will bottom out;
  • Progesterone level may peak earlier than 90 days;
  • There is an article that discusses the use of Regumate in the pregnant mare on this web site that will offer additional insights (follow that link).
I suspect that the above will give you some food for thought, and if your thoughts are heading towards wondering if the evaluations and treatments so far have been an accurate representation of what is required, you may want to seek a second opinion from a veterinarian Board certified in reproduction (a theriogenologist). That might be the route I would choose... :-)



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