- Aug 27, 2018 -
The cryopreservation technology of livestock semen is to use the cooling ability of liquid nitrogen to freeze the semen, so that the sperm is completely dormant and achieve long-term preservation.
Therefore, the frozen essence should be immersed in the liquid nitrogen level, otherwise it will easily lose its vitality and fail.
It is generally stipulated that liquid nitrogen should be replenished when the amount of liquid nitrogen is reduced to 1/3 of the total capacity. There are three ways to check the amount of liquid nitrogen.
(1) Weighing method
(2) Wood stick method:
(3) When there is sweating or hoarfrost around the neck of the Liquid nitrogen Container, it is proved that the vacuum degree of the liquid nitrogen tank has deteriorated and cannot be reused. It should be replaced immediately.
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