平均して、鶏肉は年間約276個の卵または週に約5個の卵を産むことができます。ただし、鶏肉が産む卵の数は、品種、食事、環境などのいくつかの要因の影響を受けます。また、1日の光の時間数は雌鶏を刺激して卵を生産し始め、鶏は一般に秋と冬に卵を産む卵を少なくします。健康な雌鶏は最初の1年で最大250個の卵を産むことができますが、鶏が年をとるにつれて卵の生産量はゆっくりと低下し、約5〜8歳になるまで横たわります。
On average, a chicken can lay about 276 eggs per year or about 5 eggs per week. However, the number of eggs a chicken lays is influenced by several factors, including breed, diet, and environment. The number of hours of light in a day also stimulates a hen to start producing eggs, and hens generally lay fewer eggs in the fall and winter. While a healthy hen can lay up to 250 eggs in her first full year, egg production slowly drops as the hens get older, and they will lay until they are about 5 to 8 years old.