MOSCOW – Rosselkhoznadzor, Russia's veterinary and phytosanitary surveillance agency, said Russia is prepared to ban imports of pork from Brazil and Canada after finding ractopamine in shipments of pork.

The agency already has imposed temporary restrictions on pork products manufactured at two plants — one facility owned by Sao Paulo, Brazil-based BRF SA (formerly known as Brasil Foods) and another facility owned by HyLife Foods LP in Neepawa, Manitoba. The agency said all pork products shipped from the BRF establishment before June 19, 2014, will be subjected to "total laboratory testing."

"This fact arouses the Rosselkhoznadzor's resentment since there is a bilateral agreement [with Brazil] on growth-promoter non-use for production of animal products intended for import to the Russian Federation," the agency said in a statement.

Rosselkhoznadzor also reported finding ractopamine in a shipment of frozen pork imported from Canada. The agency said it would impose temporary restriction on imports from HyLife Foods "in case of repeated detection of banned substances."

In both cases, Rosselkhoznadzor requested telephone consultations with Canadian and Brazilian authorities.