Detergents can be used with the function to remove dirts and to penetrate in cracks, but these do not have to be mixed other agents of cleanness, therefore they can inactivate one or another one during the cleanness (LANA, 2000). After the withdrawal of lot must to carry through cleanness efficient, where if remaining portion removes of ration that porventura is in the place, removes equipment, washes, disinfects (with deodorants that they better provide action on pathogenic agents) and it displays to the sun; it leaves bed, gets wet and enlona the truck; they are swept and they washed ceilings, screens, walls silos and pisos (LANA, 2000). After the accomplishment of the cleanness, initiates the disinfection process, that still must be made with the humid installations, where if applies insecticides of low toxicidade and whitewash hidratada with water. The great difficulty is in carrying through the disinfection if attacking the environment (JAENISCH et al, 2010). According to Saints (et al, 2009), it can also be used quaternary ammonia, phenols and cresis and chlorine.

The installations must be closed and without use per approximately 10 days (LANA, 2000). Some factors exist that can influence in the action of the deodorant, as for example: Phenolic coefficient of the product; dilution in which the deodorant is used; temperature and way of application and time of exposition (LANA, 2000), in addition the antimicrobiana performance can be affected by the presence of organic material (JAENISCH et al, 2010). In such a way it is necessary to observe some points during the choice of the deodorant: not to be toxic for animal men or, to be highly germicida, who are effective, to be not-corrosive, to be soluble in water, to have to be able of penetration, preference to be odourless and to have low cost (LANA, 2000). According to Lana (2000), it is in this period (that it precedes achegada of the pintinhos), that you vary activities must happen, for example, the extermnio of rodents; the revision and maintenance of the equipment, curtains, screens and roofs and other problems that can porventura appear.