noun
egg-laying hen; layer
Refers to a hen kept primarily for egg production, often in agricultural or poultry farming contexts.
この農場では採卵鶏を500羽飼育している。
This farm raises 500 egg-laying hens.
肉鶏 refers to chickens raised for meat (broilers), while 採卵鶏 refers to hens raised for egg production.
Compound of 採卵 (さいらん, 'egg collection') and 鶏 (けい, 'chicken').