My 10 year old standardbred stallion was trained to the mount with an AV last season. About 8 mos. previously he had been test bred and collected with no indication that there were any "issues." Last spring he was successfully collected and bred three mares without incident. Near the end of the season, I was told told that the vet was having difficulty collecting him. They couldn't get him to ejaculate. We stopped and turned him out from August through March at a new breeding facility (in Maine). Recently, I have been told that they have been trying to collect him, but he has been unable to "finish." Apparently he thrusts 6 - 8 times and then just loses interest and stops. Any ideas or suggestions? Thanks!!!!
Someone else may have other ideas, but our stallion will not finish if his AV is not exactly how he likes it. He likes his as AV water as hot as it can safely be without burning him and likes it extremely tight. If it is not hot enough or tight enough he refuses to finish. Anyone else have any ideas, just what works for mine.
Cause of failure of ejaculation will fall into one of three categories:
Physical obviously encompasses pain issues, as well as some sort of blockage; Psychological includes memory of a bad experience, and/or the knowledge that it is going to hurt if he ejaculates; Environmental will include factors such as an unsuitable AV (type, temperature, pressure, handling), lack of suitable stimulus animal (mare not in estrus), and unsuitable handling (e.g. handler too aggressive).
I would not be too concerned about the concept of the stallion not collecting in a disposable liner (sorry Beth! ) - we collect between 300-500 stallions a year and all of them get collected in a disposable liner. The biggest issue we find with those that reputedly will not collect in one, and which we then do, is that the AV temperature is not hot enough in the failed attempts. This too may be an issue with your stallion, as "shy" stallions tend to go better, hotter. The interior temperature of the AV at the time of collection should be between 113 and 130° F (45-54° C) - which is a lot hotter than many people have the AV.
Is your stallion "flowered" when he stops? i.e. is his glans engorged when you remove the AV from his penis? If so, you might want to try loosening the AV (let water out) and try again. Some stallions - in particular that have bred live cover - will quit when the glans enlarges if the AV is too tight for them.
You might also want to talk to your vet about use of Phenylbutazone ('bute) or Flunixin meglumine ("Banamine") prior to collection. As he is 10, he may have incurred some knocks - especially if he has raced - and he may have a sore back or joints that start hurting when he's in the middle of being collected.
What does the semen look like after you get the collection (if you get one)? Evaluate it closely at that point (if you reach it), as if there is a blockage somewhere, you will be likely to see a large number of dead sperm. We have noted in some stallions with this problem (blocked ampulla) that they become irritable and/or unwilling to ejaculate - quite probably because it is uncomfortable while the blockage is there. Once they are cleaned out, it usually is not an issue.
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