Salted ducks. [Photo provided to China Daily]

Ducks are checked for quality at Nanjing Osmanthus Ducks Group. [Phoro provided to China Daily]

Tratitional method of making salted ducks. [Photo provided to China Daily]

Workers use traditional methods to prepare ducks in Nanjing, capital of Jiangsu province. The city is known as China's "duck capital".

Tratitional method of making salted ducks. [Photo provided to China Daily]

Tratitional method of making salted ducks. [Photo provided to China Daily]

A laboratory worker at Nanjing Osmanthus Ducks Group performs a safety test to assess the quality of duck meat. [Photo provided to China Daily]

Modern machinery is used to package the birds. [Photo provided to China Daily]