Brazilian food processor BRF is confident local companies will be able to circumvent chicken trade bans in a matter of days as local authorities have so far been able to control a bird flu outbreak in the world's largest chicken-exporting nation.

Brazil's poultry exports fell in both value and volume in May from a year earlier, government data showed on Thursday, as trade restrictions following a bird flu case weighed on the sector.

Brazil said Wednesday it had contained an outbreak of avian flu that had forced it to suspend chicken meat exports to China and 20 other countries