Incubation takes 3-4 weeks. The juveniles live on their yolk sack for 10-14 days during which time they become fully formed juvenile crayfish, ready to be stocked in the growout ponds. The whole cycle takes 4-6 weeks. The juveniles are transported from hatchery to farm in plastic, oxygen-filled bags. - See more at: http://hatcheryinternational.com/husbandry/climate-controlled-hatcheries-and-innovative-breeding-progra/#sthash.t3pFFKre.dpuf