WBRZ
BATON ROUGE, La. - Scientists at LSU's AgCenter are using cryogenic freezing to preserve the genetic material of Louisiana crawfish, among other aquatic species.
At the Aquatic Germplasm and Genetic Resources Center, researchers store sperm, eggs, and embryos of aquatic species in liquid nitrogen. Jack Kock, the associate director of the center, says the process is similar to in-vitro fertilization.