INTRODUCTION
The poultry industry is always looking for ways to increase its productivity. Undoubtedly, the possibility of
increasing the hatchability, and therefore the number of day-old chicks, and their quality by improving chick
uniformity is very attractive.
In this way, companies are evaluating the possibilities of moving from the multiple-stage system towards the
single stage system of incubation. Obviously, there are advantages and disadvantages in both systems and this
article summarizes them.