Semen storage and handling for A.I.
By Joseph C. Dalton, Caldwell Research & Ext. Center, University of Idaho
Artificial insemination is an efficient and cost-effective strategy to improve the genetics and reproductive performance of a herd. Reputable commercial AI studs and custom semen collection businesses, through stringent collection, processing and quality control, provide a highly fertile product to their customers. When semen is purchased and transferred to the producer’s or professional AI technician’s liquid nitrogen refrigerator, the maintenance of male fertility is in the hands of the producer, farm employees, and AI technicians.
In order to realize the maximal potential fertility within straws of frozen semen, the liquid nitrogen refrigerator must be managed properly. The liquid nitrogen refrigerator consists of a “tank within a tank,” with insulation under vacuum between the inner and outer tanks. Liquid nitrogen refrigerators should be stored in a clean, dry area, preferably on a wood stand to avoid possible corrosion (due to contact with wet or damp concrete).
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