im not 100% sure on this but i know some people who can help. you can email them at info@thehorseherbalist.com or you can check out there website www.thehorseherbalist.com i hope i helped warmest regards KYE
This is probably not blood from the urinary tract but mixed in with the urine as it is discharged from the uterus and vagina. If you are concerned a post foaling evaluation of the mare's reproductive and urinary tract may be advisable.
Foaling.
No
foaling
Post foaling, the mare's uterus needs to discharge remaining fluid and return to it's original size (involute). By around 10 days post foaling the mare has gone through foal heat and completed the "cleaning stage".
go to http://duncity.net/horses/foalingcalc.htm and use the foaling calculator
The earliest a mare can be bred post foaling is during the post foaling heat which occurs about a week after the foal is born. It is generally acknowledged that the mare is less fertile during this heat cylce because the uterus is usually not completely clean and totally involuted (returned to it's normal size). However, if the mare doesn't ovulate until 10 or more days post foaling the chance of a pregnancy is much higher.
Preparing your mare for foaling in the proper way is essencial in her health. I have written an article on when my mare foaled, and how we prepared & cared for her, and our new foal. This is the link: http://www.ehow.com/how_4526561_prepare-mare-foaling.html
Ideally, foaling takes place in a specially built large stall called a foaling stall. When foaling outside in a herd, mares often separate themselves to foal. A few seek out the company of a special horse friend (usually another mare) or the herd while foaling.
To give birth to a foal (baby horse) by a mare (mother horse).
On Howrse Quiz it's Straw
It means that she is giving birth to a foal, or baby horse.