家禽养殖

家禽养殖是指人们饲养例如鸡、鸭、火鸡和鹅等家禽，这些家禽的肉以及产下的蛋供人们食用。家禽养殖也是畜牧业的一种。家禽养殖中鸡的养殖数量庞大。每年有超过600亿只鸡被宰杀并供人食用。^[1][2]专门下鸡蛋的鸡被称为蛋鸡，而专门供人食用的鸡被称为肉鸡^[3]，而广东更加将肉鸡细分为骟鸡、鸡项、云英鸡、老鸡等分类作为不同菜色的食材。

家禽养殖

世界上74%的肉鸡和68%的蛋鸡都是在专门的养鸡场中饲养。^[4]与养鸡场相对的是家庭自由放养。养鸡场通常在饲料或饮用水中投放国家批准的药物，例如抗生素，这样做的目的是防止禽类疾病爆发。^[5]

参考文献

1. Global Animal Slaughter Statistics And Charts. Faunalytics. 2018-10-10 [2019-11-05]. （原始内容存档于2022-06-02） （美国英语）.
2. Compassion in World Farming – Poultry. Ciwf.org.uk. [October 3, 2018]. （原始内容存档于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]. （原始内容存档于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]. （原始内容存档于2019-12-15）.