Hi there. We farm in north Cumbria, beef and sheep, and I have a few Jerseys which I multiple suckle.
Up here we see little TB, although there has been a case near to me recently, so we are on a 4-year testing cycle. All adult cattle are tested.
In Gloucestershire you would be on a more frequent testing regime. Your can look up about risk levels and TB testing intervals on the Defra website.
linkyAt the moment, only cattle are TB tested. Work is ongoing to develop reliable tests for camelids.
Other species can get bovine TB; it has been recorded in pigs, wild boar, deer - both farmed and wild, alpaca, llamas, goats, dogs, cats, ferrets, sheep and of course badgers.
to start with I would like to get some pygmy goats or goats and then slowly expand into pigs, and maybe half dozen jersey cattle suckler herd.
I'm not sure what you mean by "half dozen jersey cattle suckler herd". Generally the term "suckler herd" means beef cattle, each of which has and rears one calf each year. The calves are usually weaned at around 9 months, or self-wean.
I don't think you would be able to operate Jerseys on this principle, they give too much milk for one calf.
Perhaps you were meaning that you would multiple-suckle the Jerseys; that they would rear their own calves plus some bought-in ones. This is what I do with mine. Each Jersey rears between 4 and 7 calves each year; I wean at 4 months of age, and she will have two or sometimes three sets of calves per lactation.