Which of the above illustrated poultry equipment is not used in a brooder house?

Which of the following equipment from the poultry equipments illustrated above could be used in the place of the equipment labelled II in the management of chicks?

In the poultry equipments above, which quality of eggs is associated with the equipment labelled I?

In the diagram above, what kind of identification method is illustrated?

A farmer collects 800 eggs from a laying stock of 1,200 birds per day. Determine the laying percentage of the birds