Russia has temporarily banned imports of New Zealand beef.
Russia’s agriculture safety watchdog, known as Rosselkhoznadzor, said it found a banned feed additive, ractopamine, in some beef samples.
Ractopamine, which promotes muscle growth, is banned in beef and sheep feed in New Zealand.
The Special Agricultural Envoy, Mike Petersen, believed further testing would show New Zealand beef was clean.
The meat industry is confident the ban on beef imports will be quickly overturned.
The watchdog said it was also considering banning New Zealand fish after claiming it discovered traces of mercury in some supplies.