Photo and headline: Drovers, 4/30/2026
Proper semen tank management is critical to the success of any artificial insemination (AI) program. A standard 20-liter liquid nitrogen (LN) tank can hold up to 720 straws, representing a significant financial and genetic investment. [emphasis added]
Sandy Johnson, Kansas State University Extension beef specialist, says in a recent Beef Tips article, “Collecting and packaging semen is a routine job performed by highly trained professionals. Once it leaves the collection site, its quality is maintained only through proper handling as it makes its way to the cow.”\
A LN tank can be thought of as a large thermos with a vacuum between the inner and outer walls. The vacuum must remain intact to maintain the proper storage temperature. If frost is seen on the outside of the tank, action must be taken immediately as the seal has been lost.
And coincidentally....
Latest bird flu wrinkle: H5N1 in bull semen. (5/1/2026)
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