I live in Brazil... you need to be aware that large Brazilian companies play a lot of games with derivatives, hedging and financial speculation. Indeed, the majority of profits at big Brazilian companies are from finance and not from their base business. (This from an analysis by O Globo newspaper several years ago.)
BRSF was formed when Perdigao bought Sadia, a company that basically went BK due to bad bets on derivatives.
I am NOT saying BRFS is a bad stock, just mentioning one of the risks.
While you're in that part of the world, Brazil, take a look at ABV. It's also one of those stocks that will do well under any economic condition. I own a piece of both and consider them to be maintenance free. I don't have to watch what they do, just let them run. (No spam intended,do your d.d.) JMHO.