I bred a 14 yr old, 16hand standardbred mare yesterday. She had two foals by AI but this was her first time with live cover. Just after the stallion penetrated I observed a clear fluid coming back up the shaft of his penis (ie backwash). It was very clear and fluid, not semen or mucous. I've never seen this before. This was immediately after penetration?
Jos Posted From: 18.104.22.168
Posted on Saturday, June 05, 2004 - 08:17 pm:
Without actually being able to evaluate the fluid, it is a little difficult to be definitive, but the first three possibilities that spring to mind are:
Pre-ejaculate (which is clear), which although a little unusual to see at that point and in that way, could perhaps have just been released at a moment opportune to create the backwash effect you describe;
The second possibility, which is more concerning, and would quite possibly be more likely to be seen in the manner you mention, is urine in the vagina of the mare - so in other words, she is pooling urine, which was displaced by the pressures created as the stallion penetrated - I think I would feel inclined to evaluate the mare's vagina for urine presence.
The final possibility, is that it was urine, but was merely displaced from her bladder by the pressure of the penis during intromission - in other words, she needed to urinate at the time of breeding.
Jos Thankyou for your reply. We bred the mare again today and I can quite certainly say it was urine. She was squating and peeing as the stallion approached(as some mares do) but when the stallion penetrated today she urinated quite a large volume all over him, me and herself (I mean alot!) With him thrusting I am concerned about contaminating the semen or possibly forcing the urine back through the cervice. Can this happen? Is this breeding likely a failure?
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