8.—(1) In this Act the expression “compound feeding stuff” means any article for consumption by animals which is not a maize meal mixture and which is either—
(a) a mixture of two or more articles, at least one of which is a feeding stuff; or
(b) a feeding stuff or medicine which passes in commerce under the designation of a proprietary or protected trade name.
(2) In this section the word “animals” means horses, mules, jennets, asses, cattle, sheep, swine, goats or poultry.