2007-01-01 08:37:08 · 5 answers · asked by heather shrives-dornan 1 in Science & Mathematics ➔ Biology
Very small ice-cube trays...
You need something other than a household freezer.
2007-01-01 08:40:41 · answer #1 · answered by Gaspode 7 · 4⤊ 0⤋
Storage facilities mainly use liquid nitrogen. But the sperm must be brought down to the liquid nitrogen temperature at a certain rate as not to destroy the cellular structure. Too fast and the cells can crack and be useless. Too slow and the genetic structure can be damaged.
2007-01-01 08:46:14 · answer #2 · answered by intelect1 2 · 0⤊ 0⤋
I am assuming you would like the sperm to be viable after thawing. Typically one would store samples in liquid nitrogen (don't do this at home). This type of storage keeps the temp at about -200C.
See the following sites for companies that will do this for you:
http://www.cryochoice.com/steps_storage.aspx
http://ww2.kgw.com/Global/story.asp?S=5036398
http://www.haveababy.com/cryogam/cryogam.asp
2007-01-01 08:50:01 · answer #3 · answered by teachbio 5 · 0⤊ 0⤋
The home freezer does not get cold enough. So you need not buy anything!
2007-01-01 08:46:52 · answer #4 · answered by Jas K 3 · 0⤊ 0⤋
They use liquid nitrogen at -70C
2007-01-01 09:59:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋