Once an egg is laid, its hatching potential can only be maintained, not improved. To ensure optimum hatchability and chick quality, it is vital to keep eggs in ideal conditions between laying and setting in the incubator. This means adjusting the temperature of the egg during each phase of storage and transportation – from the farm to the hatchery – to minimize losses. Follow this quick-reference temperature guide to produce the highest quality chicks (click to download PDF): Temperature changes should occur in a steady pattern, as any sharp changes will negatively affect eggs. Stages 1-5: Gradually cool eggs from the point of lay to the hatchery egg room, which is the coolest point for the egg. Stages 5 -7: Once in the hatchery room, begin pre-warming eggs before setting them in incubation, which is the warmest point. For more information on Egg Handling and Hatchery management, visit the Cobb Guide Academy.