| dc.description.abstract | Cryopreservation of ram sperm has been in development for decades. The reason is that ram
sperm is more vulnerable to any external factors than sperm of other species. Every step of the
process of preserving ram sperm needs to be done carefully to avoid causing unnecessary
damage. It starts with possible semen collection methods all the way through lambing after
insemination with the collected and preserved semen. This process has its advantages over using
natural mating, however, there are disadvantages at the same time. The selected preservation
method can be influenced by the preferred insemination method, and vice versa. Substances
used for dilution of semen can be combined in many ways but it has to be done carefully, not
to cause harm to spermatozoa. Vaginal insemination is considered to only be successful with
fresh semen, while cryopreserved semen can only show acceptable success rates when deposited
directly into the uterus. | en_US |
