What pips&peeps said.
Those of you looking up dictionary definitions of livestock -- those are unfortunately almost certain to be entirely IRRELEVANT. Law, zoning, code type issues are legal issues and thus written in legal language, the vocabulary of which may SEEM to use conventional common words but usually has very special specific rigid definitions of its own for them.
It is *possible* that the zoning document that talks about no livestock fails to reference any definition of the term and that no specific legal definition applies.
However, it is much likelier that there IS some very specific, itemized list of what does and does not count as livestock in the eyes of the law. Even if it is not contained within that bylaw clause.
Dictionaries, and common useage, really have very little to do with law. Inconvenient but true. Gotta set aside your preconceptions about what each term means, and find out what its TECHNICAL meaning is, in order to find out what a law really does say.
Good luck though,
Pat