家禽養殖

家禽養殖是指人們飼養例如雞、鴨、火雞和鵝等家禽，這些家禽的肉以及產下的蛋供人們食用。家禽養殖也是畜牧業的一種。家禽養殖中雞的養殖數量龐大。每年有超過600億隻雞被宰殺並供人食用。^[1][2]專門下雞蛋的雞被稱為蛋雞，而專門供人食用的雞被稱為肉雞^[3]，而廣東更加將肉雞細分為騸雞、雞項、雲英雞、老雞等分類作為不同菜色的食材。

世界上74%的肉雞和68%的蛋雞都是在專門的養雞場中飼養。^[4]與養雞場相對的是家庭自由放養。養雞場通常在飼料或飲用水中投放國家批准的藥物，例如抗生素，這樣做的目的是防止禽類疾病爆發。^[5]

參考文獻

1. Global Animal Slaughter Statistics And Charts. Faunalytics. 2018-10-10 [2019-11-05]. （原始內容存檔於2022-06-02） （美國英語）.
2. Compassion in World Farming – Poultry. Ciwf.org.uk. [October 3, 2018]. （原始內容存檔於2017-04-26）. There are more chickens in the world than any other bird. In fact, more than 50 billion chickens are reared annually as a source of food, for both their meat and their eggs.
3. Compassion in World Farming – Poultry. Ciwf.org.uk. [October 3, 2018]. （原始內容存檔於2017-04-26）. Chickens farmed for meat are called broiler chickens, whilst those farmed for eggs are called egg-laying hens.
4. State of the World 2006 World "atch Institute, p. 26
5. Food-Animal Production Practices and Drug Use. National Center for Biotechnical Information. 1999 [February 28, 2016]. （原始內容存檔於2019-12-15）.