11.The owner or keeper shall maintain a record for each house of a holding of:U.K.
(a)
the number of chickens introduced;
(b)
the useable area;
(c)
the hybrid or breed of the chickens, if known;
(d)
by each control, the number of birds found dead with an indication of the causes, if known as well as the number of birds culled with cause;
(e)
the number of chickens remaining in the flock following the removal of chickens for sale or for slaughter.
Those records shall be retained for a period of at least three years and shall be made available to the competent authority when carrying out an inspection or when otherwise requested.