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 Agricultural Genetic Resources Preservation Research: Fort Collins, CO
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ARS Home Plains Area Fort Collins, Colorado Center for Agricultural Resources Research Agricultural Genetic Resources Preservation Research Docs Animal





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Virtual Tourheadline bar Samples are collected from animals from all over the U.S. Shorthorn cows in Nebraska  Navajo women with a churro sheep. Upon arrival, sample viability is evaluated using computer assisted sperm analysis (CASA)  Example of filled, sealed and labeled straws ready to be cryopreserved /ARSUserFiles/30123030/animal/scott_freezer_peggy_greb 300.jpg Information about sample provenance and semen storage location is entered into the Animal-GRIN database /ARSUserFiles/30123030/animal/AnimalGRIN350.png
 Shorthorn cows in Nebraska. Navajo Churro sheep in Arizona Evaluating sample viability in the laboratory. Semen samples are cooled to 5C and cryoprotectants are added.  Samples are then packaged with an automated straw filler and labeler. Filled, sealed, and labeled semen straws. 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 /ARSUserFiles/30123030/animal/carrie_vault_peggy_greb 300.jpg


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