(1) In these Regulations—
“automatic equipment” means automated or mechanical equipment, the failure of which will cause the livestock to suffer unnecessary pain or unnecessary distress unless the failure is rectified or other provision is made for the care of livestock;
“battery cage” means an enclosed space intended for laying hens in a battery system;
“battery system” means an arrangement of cages in rows or tiers or rows and tiers;
“boar” means a male pig after puberty, intended for breeding;
“calf” means a bovine animal aged six months or less;
“gilt” means a female pig intended for breeding, after puberty and before farrowing;
“intensive system” means a husbandry method in which livestock are kept in such numbers or density or in such conditions or at such production levels that their health and welfare depend upon frequent human attention;
“intensive unit” means a unit in which livestock are kept under an intensive system;
“laying hen” means an adult female domestic fowl ( Gallus gallus ) which is kept for egg production;
“pig” means an animal of the porcine species of any age, kept for breeding or fattening;
“piglet” means a pig from birth to weaning;
“rearing pig” means a pig from ten weeks to slaughter or service;
“sow” means a female pig after the first farrowing;
“stock-keeper” means the owner of the livestock or the person responsible for the livestock;
“weaner” means a pig from weaning to the age of ten weeks.
(2) Nothing in these Regulations shall apply to any act lawfully done under the Animals (Scientific Procedures) Act 1986 .
(3) These Regulations shall only apply in relation to livestock for the time being situated on agricultural land.
(4) These Regulations shall not apply in relation to bees or fish, including shellfish, crustaceans and molluscs.
(5) In these Regulations, a person knowingly permits livestock to be kept if—
(a) the livestock is under his control, and
(b) he knows or could reasonably be expected to know how the livestock is or may be kept.