Artificial Insemination

Stirling Cryogenics has been supplying on-site liquid Nitrogen systems to Artificial Insemination facilities since the mid 60’s, to store both bull semen and embryos. Liquid nitrogen is required for the long-term storage of this biological material. Its low temperature of -196ºC (77K) and inert caracteristics prevent the deterioration of biological quality.

Basically there is a choice between receiving bulk liquid nitrogen from industrial gas suppliers and producing liquid nitrogen on site. The bulk-supplier option is often used in countries with good infrastructures, meaning no liquid nitrogen producing equipment is required at the AI facility itself. The disadvantage is that this relies on reliable logistics and thus good infrastructure.

Artificial insemination

For an AI program to be successful, progeny testing must be based upon the availability of a "semen archive bank" built up slowly and updated every year. Without this, no effective program for genetic improvement of cattle can be practical since the results of a particular insemination stage are not known until about four years after its start.

For reasons of reliable uninterrupted liquid Nitrogen supply, producing on site is strongly recommended for artificial insemination facilities where bulk supply cannot be absolutely guaranteed. Many centers in industrialized countries invest in a liquid nitrogen system as an additional source of supply in case of a supply emergency such as strikes, natural catastrophies, etc. An on-site system is an absolute must for stations in remote areas not having good infrastructure to their site.

StirLIN-1 Compact

StirLIN-1 Compact

The success of cattle improvement in India

Stirling played a key role in the development of artificial insemination in India and many other countries in the world by supplying the most essential element in the chain of requirements: a reliable on site liquid nitrogen system. After more then 40 years of investment in the implementation of artificial insemination, India has improved the quality of its cattle and increased its dairy and beef production to a level where these have become accessible to more than a billion people. Farmers and co-operatives have learned to appreciate the added value of artificial insemination to genetically improve the quality of the nation's livestock. This ensures top quality cattle, economic value for farmers and above all improved nurishment for the people of India.

How Stirling Cryogenics can help with AI

Stirling Cryogenics has developed a range of liquid nitrogen production systems named StirLIN. Production ranges from 60 to more then 3000 liters per day. The technology is based on the world-famous Stirling cryogenerators in combination with air separation using pressure swing adsorption (PSA).


Video of StirLIN equipment used in Artificial Insemination

Altough dating from the early 90's this old, interesting and entertaining video still very well pictures the use of Stirling equipment in Artificial Insemination: Miracle of Life 

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