Mare is putting up fluid and seems to empty when in season but when scanned to see if she is infoal shes full of fluid again. I really want to get this problem sorted.The mare does have history of problems.
Some mares will carry alittle fluid even without problems. But have had similar issues with some mares . Same suggestion... have your VEt come out after mare has ovulated and lavage with saline,directly after saline is in uterine cavity, give oxytocin to her, while pippete and saline bag are attached and lower bag to see how much and what color the fluid is coming back.Drain as much as possible to see how much comes back. IT might be a very good idea to also culture this mare immediately when she comes INTO heat to make sure you aren't dealing with an infection..or even urine pooler....so when you lavage her..... and then give her oxytocin directly after... you will also know if you have to treat her with antibiotics over the next days. If treating also with Antibiotics...lavage first, oxytocin given after, the on the next 3 days..treat her with whatever antibiotic you have to, which is placed directly into uterine cavity with pippette and then 2 hours later give her oxytocin again to even force remaining fluid out.. this should be done 3 days in a row with oxy given everytime...2 hours after antibiotic is placed in side. Then you can short cycle her 7 days after ovulation and get her to come back into heat( culture and scan again to see if she is clean and if she has any fluid. ) IF clean...and very little fluid ..this may be her normal thing... if alot of fluid and clean...she may be a urine pooler. They are very hard to get clean and "dry for breeding. But it can be done.
I agree with J.R. Hamilton's suggestions, but (you knew there had to be a "but" ) would mention that if using a low-volume intra-uterine antibiotic solution (typically about 50-ml) we will not give the oxytocin for about 6 hours after the infusion. It can take up to 4 hours for antibiotics to control a pathogen, so my feeling is that using the oxytocin at 2 hours (which results in almost immediate uterine contractions) may clear a significant portion of the antibiotic before it's "done its thing".
And as ever - with a culture, get a cytology as well! This is particularly useful with possible urine poolers, as one can often identify urine crystals on the smear, thereby giving a definitive answer as to whether they are pooling or not.
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