Hi, I bought a neglected 12hh pony about 4 weeks ago. Took a stool sample to see what worms she was harbouring to the vets & she was loaded! Anyhow, that's been treated accordingly. I thought her tummy would go down, but she's actually getting larger. She's not cresty or plump on the behind or shoulders. She's carrying like being in-foal. There was no mention to me of her being in foal, so I was just wondering... She's not bagging up & not being overfed. She is pastured, but the grass is so trimmed I don't think she's overindulging there either.
Best advice is to get a pregnancy check done, right?
Right, and if she's been neglected and/or abused, I would go with blood tests rather palping or u/s. She needs time to come to trust you and if she's already showing a blood test should work.
LJ Posted From: 188.8.131.52
Posted on Monday, January 03, 2005 - 09:49 pm:
A blood test would probably be a good idea. You can save yourself another trip to the vet and buy one through Heartland Veterinary Supply. I don't recall their web address, but I know that they sell them for $40.00 or less.
Jos Posted From: 184.108.40.206
Posted on Monday, January 03, 2005 - 10:48 pm:
The PregnaMare® test kit, which is probably what is being referred to above, only has any degree of reliability if testing is performed between about 40 and 90 days of pregnancy. A 5% false negative and a 10% false positive rate has been suggested if testing is performed then. Outside that time period, the results will be highly unreliable, as the test is assaying for a hormone called eCG (formerly known as PMSG), which is not present in mid- to late-term pregnancy.
A new stall-side assay is available in North America, which assays for total estrogens. This product is called FoalProof®. It has a reported specificity of 98% (probability of a negative result for non-pregnant mares, 389 mares tested) and sensitivity of 97.1% (probability of a positive result for mares 120 or more days pregnant, 312 mares tested). It retails for $24 a test. The test should not be used before about 100 days, as the hormone it assays for will not be reliably present prior to that time. You will need to be able to draw blood from your mare and separate the serum/plasma.
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