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Semen collection refers to the process of obtaining semen from male humans or other animals with the use of various methods, for the purposes of artificial insemination , or medical study usually in fertility clinics. Semen can be collected via masturbation  e. The best specimen is produced when a short period of 3—5 days of abstinence is observed. More prolonged period does not yield better results. For semen collection from stallions, the most common method used is an artificial vagina; after collecting semen, it is tested, diluted, then stored according to the intended use. Semen can be either liquid or frozen.
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SART: Collection of Semen
In order to obtain sperm of optimal quality, it is important that patients follow clinic instructions for semen collection. Be aware that clinics may have different protocols for sperm collection for intrauterine insemination and in vitro fertilization. Also, some programs may have men take an antibiotic prior to collection for IVF cases. Common instructions follow:. Masturbation is the most frequent method used to produce a sperm sample on the day of oocyte retrieval. Occasionally, intercourse using a special condom or electroejaculation is required for successful collection.
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Collection of Semen
Semen analysis is an important test in the evaluation of male infertility and is also used to confirm sterility after a vasectomy. A semen sample is examined for sperm concentration, morphology, motility, and semen biochemistry e. Test results can include a number of pathologies, such as low sperm count oligospermia or complete lack of sperm in the ejaculate azoospermia. However, semen analysis is not a definitive test for infertility and low sperm count does not necessarily rule out the ability to father children. References:  .
A large majority of dairy cows in the US, Canada and European countries are artificially inseminated. Artificial insemination of beef cows is also popular, particularly in purebred herds. The advantage of AI over natural service is that it facilitates rapid genetic improvement by allowing use of only the top bulls. Some bulls have sired more than , offspring via AI. Semen is most commonly collected from bulls in bull studs using an artificial vagina , as described below.