Immediately after collection an initial evaluation is performed to examine the semen forÖ consistency, color, sperm morphology, motility and concentration. We then package it as if it were being shipped for breeding purposes and bring it back to our lab. Once itís at the lab we create a log and record the results for 12 hours, 24 hours, and 48 hours post collection. We look to see how many sperm are still alive and how many are progressively motile, meaning they are viable to get a mare pregnant. By the time cooled semen arrives at a farm it should be at least 50% progressively motile. It is also helpful to know how long your stallionís semen will last in shipment.
A basic semen check is how we test the semen after we have artificially inseminated (AI) your mare. After breeding we save a few drops and keep them cool to be evaluated in our lab. The semen is warmed up and looked at under the microscope. We evaluate the sample to determine how many spermatozoa are alive and progressively motile. It is reassuring to know the semen you bred your mare with is of good quality. Also some stallion owners may allow you to rebreed if the semen didnít survive shipment.
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