This would be the only thing that would concern me going into pigs in the medium term, this AHDB document suggests the USA has production costs a third cheaper than ours here in the UK... but I've never heard the pig sector worry about future trade deals with cheap pork like the beef and the chicken sectors have...
View attachment 2016 Pig cost of production in selected countries.pdf
View attachment 2016 Pig cost of production in selected countries.pdf