Broody hens provide optimum conditions for embryos developing in the eggs they are sitting on. The brood patch provides heat from one direction only, and the eggs at the side of the patch are cooler than those in the middle of the nest. However, because the broody hen regularly turns and moves the eggs in
When a hatchery manager talks about incubation temperature, he or she refers to the temperature set point at the controller of the incubator. This temperature set point regulates the temperature of the air stream along the incubator’s temperature sensors. If the air temperature is too high or too low, the incubator controller adjusts the cooling
A healthy, well managed breeder flock, receiving a balanced feed ration, will produce good quality hatching eggs. At the moment an egg is laid, it contains an embryo of 30,000 - 60,000 cells. At that point in time, each cell is already programmed for its future function. With the best of care, the hatching
THE STRUCTURE OF THE EGG To be well informed of the factors influencing the quality of the egg (both hatching egg and consumer egg) and those of the incubation and hatching process it is necessary to know the structure of the egg. Below you will find a rough enumeration of the most important parts.