System where storing, hatching and firs feeding are carried out in the same unit
There is also special hatching equipment that may be placed directly into the first feeding units (Fig. 12.9). The space, water supply and water outlet to the first feeding units can then also be used for storing and hatching of the eggs. In one arrangement the hatching installation consists of a perforated inner bottom and a fixed exterior bottom where the hatching substrate can be attached. It is placed inside the tank on legs and a special larvae outlet is directed into the tank outlet. The advantage with this system is that the same unit is used for egg storage, hatching and first feeding. Therefore less space is needed and no separate hatchery is necessary. Problems with disease, due to the lack of a special isolated area, can be a disadvantage with the system; neither is it as suitable for first specialized egg production. The system is most commonly used in smaller farms.