Samples are collected from animals from all over the U.S.
Shorthorn cows in Nebraska
Upon arrival, sample viability is evaluated using computer assisted sperm analysis (CASA)
Example of filled, sealed and labeled straws ready to be cryopreserved
Information about sample provenance and semen storage location is entered into the Animal-GRIN database
Navajo Churro sheep in Arizona
Semen samples are cooled to 5C and cryoprotectants are added. Samples are then packaged with an automated straw filler and labeler.
Straws are cooled to -140C using a programmed cooling apparatus, and then they are plunged into LN2
Once samples have received proper cooling treatments, they are placed in cryovats for long term storage