3.—(1) Owners and keepers of animals must take all reasonable steps–
(a)to ensure the welfare of the animals under their care; and
(b)to ensure that the animals are not caused any unnecessary pain, suffering or injury.
(2) Owners and keepers of animals (other than fish, reptiles and amphibians) must ensure that the conditions under which the animals are bred or kept comply with the requirements set out in Schedule 1.
(3) In deciding whether the conditions under which animals are being bred and kept comply with the requirements set out in Schedule 1, the owner and keeper of the animals must have regard to their species, and to their degree of development, adaptation and domestication, and to their physiological and ethological needs in accordance with established experience and scientific knowledge.