The efficacy of disinfectant solutions is usually enhanced when applied in warm solutions rather that cold solutions. When possible, allow all surfaces to dry thoroughly prior to reuse. Dryness helps prevent the reproduction, spread and transport of disease organisms. Although a surface is clean, it is more easily recontaminated with organisms if water remains on the surface. It is important when selecting the best disinfectant to consider its effect upon the developing embryo and the hatchery environment.
Embryos are in a very sensitive stage of development when the eggs enter the hatchery.
They can be severely affected if subjected to chemical vapors, even if a sterile environment is provided. It must be remembered that an egg is not produced in a sterile environment. Before it is laid, the egg is subjected to a series of microbial attacks that can reduce the embryo's potential to develop into a healthy, robust chick. The vent is probably the most contaminated area that an egg passes through. Poorly maintained nests can also distribute organisms to noninfected eggs.