Jaykay - is not well phrased but "(in relation to livestock) whether subsidy payments are claimed or for the selling of offspring, meat and meat products, wool, eggs, cheese, milk etc (this is an illustrative list only);" I read as you're not hobby if you're selling stock or meat
It
is badly written, mainly because someone has ignored the semicolon and put an extra bullet point in. It seems most likely someone official wrote it and some secretary somewhere bullet-pointed the list.
If you read the sense of the phrase intended by the semicolon, then it's saying you're not a business if your income exceeds expenses
either because you claim subsidies
or from the sale of produce etc. After all, if you couldn't sell produce or animals, you'd have no income at all, would you, from your hobby, let alone it not exceeding expenses.
Ha, being a nuisance to the Police is probably the best protection we have then