*羅漫銀雞 Lohmann Silver chickens?

Lohmann is a type of chicken that is bred as layers. That is, it is used for laying eggs in the poultry industry. "Silver" refers to the color of the feather (white). I am not sure if the Chinese translation mentioned has any meanings at all. Lohmann is the strain of the breed and silver is the color of the feather. You may want to translate that into 羅曼銀羽雞.