I went to one of my semen tanks the other day and it Had no nitrogen left in it. I quickly transferred the semen into one of my other tanks the semen was cold as well as the canisters were still frosty and the plug was still cold too. When I put the semen into the tank with nitrogen it did boil a little bit. I am going to get the semen looked at underneath a microscope to see if it is still good but that won't be for a while yet. What are the chances this semen is still good?