It can occur during preparation of the inseminating device or during travel to the cow. If precautions are taken to prevent cold shock, the advantage of warm water thaw will be realized. Check the temperature of the thaw water immediately before removing the straw from the tank. Use an easy to read, accurate thermometer. Duration of thaw should be between 30 and 60 seconds.
Some organizations recommend the pocket thaw for straws.
This method is successful for semen processed and packaged by their system. However, the pocket thaw should not be used for semen packaged in straws from other organizations. Thaw semen according to the recommendations of the organization supplying that specific unit of semen. In Handling Semen - Keep insemination equipment clean and dry at all times. Thoroughly dry each straw or ampule of semen.