No person shall operate a poultry hatchery save under and in accordance with a poultry hatchery licence (sect. 8). The Minister may, in his absolute discretion, grant or refuse to grant to any person such licences (sect. 9). The holder of a poultry hatchery licence shall not use for hatching in his poultry hatchery any eggs except eggs which either: (a) have been produced at, and obtained by him from, an egg supply farm which is an approved egg supply farm or in respect of which a provisional pe