The H7N3 strain of the virus was first detected on June 20 in Jalisco state.
The federal government declared a national animal health emergency on July 2 as the magnitude of the outbreak became apparent.
More than 1 million avian influenza vaccines have been imported from Pakistan, and farming officials say four labs will produce more than 80 million doses of the vaccine in seeds to deliver to farms.
The H7N3 strain is not easily transmitted between people, but world health officials say it has occasionally caused disease in humans in various parts of the world.
Photo: Agriculture Department (Mexico)