SCHEDULE 5A Additional conditions that apply in relation to conventionally reared meat chickens

PART 2 General additional conditions

5 Requirements for higher stocking densities
The requirements of this paragraph are that the keeper must—
(a) maintain and, on request, make available to the Secretary of State, documentation in the house giving a detailed description of the production systems, in particular information on technical details of the house and its equipment, including—
(i) a plan of the house including the dimensions of the surfaces occupied by the chickens;
(ii) ventilation and any relevant cooling and heating system (including their location), and a ventilation plan, detailing target air quality parameters (such as airflow, air speed and temperature);
(iii) feeding and watering systems (and their location);
(iv) alarm and backup systems in the event of a failure of any equipment essential for the health and well-being of the chickens;
(v) floor type and litter normally used; and
(vi) records of technical inspections of the ventilation and alarm systems;
(b) keep up to date the documentation referred to in subparagraph (a);
(c) ensure that each house is equipped with ventilation and, if necessary, heating and cooling systems designed, constructed and operated in such a way that—
(i) the concentration of ammonia does not exceed 20 parts per million and the concentration of carbon dioxide does not exceed 3,000 parts per million, when measured at the level of the chickens’ heads;
(ii) when the outside temperature measured in the shade exceeds 30°C, the inside temperature does not exceed the outside temperature by more than 3°C; and
(iii) when the outside temperature is below 10°C, the average relative humidity measured inside the house during a continuous period of 48 hours does not exceed 70%.
Sch. 5A inserted (23.12.2010) by The Welfare of Farmed Animals (England) (Amendment) Regulations 2010 (S.I. 2010/3033), regs. 1, 8, Sch.