Paragraph 5
Insulation and ventilation of the building in which laying hens are kept shall ensure that air velocity, dust level, temperature, relative air humidity and gas concentrations are kept within limits that are not harmful to the hens.
Insulation and ventilation of the building in which laying hens are kept shall ensure that air velocity, dust level, temperature, relative air humidity and gas concentrations are kept within limits that are not harmful to the hens.