人類蓄養家豬的歷史相當悠久，不過至16世紀才廣為世界所知，中國飼養的豬即是人類最早馴養的豬的直系後代[1]。20世紀後期，家豬發展培育達到成熟，除了宗教因素，豬肉已普遍成為人類主要食用肉品之一。其分類約有大骨架脂肪型，鹹肉型及鮮肉型。豢養區域，多為生產穀物或玉米的農產產地。
根據世界糧食組織的統計[2]，在2010年底，全世界家豬約為9.65亿頭。其中，中國境內的家豬為4.76亿頭，佔總數百分之49%，為全世界第一；第二名則為美國，為6.49千万隻，而屠宰頭數亦以中國最多。
世界各地飼養家豬的方式多為圈養，例如台灣的蓄豬業。20世紀中期以前，此地區家豬多食加熱過的廚餘或蕃薯葉，且為個別小規模蓄養，不過現今以企業化大型經營為主，飼料部分也多改成專用飼料。比較值得一提的是，現今台灣部分區域，如客家地區以及新北市三峽區清水祖師廟仍有神豬競賽，為地方上的傳統文化[3]。
A pig is any of the animals in the genus Sus, within the Suidae family of even-toed ungulates. Pigs include the domestic pig and its ancestor, the common Eurasian wild boar(Sus scrofa), along with other species; related creatures outside the genus include the wild boar, peccary, the babirusa, and the warthog. Pigs, like all suids, are native to theEurasian and African continents. Juvenile pigs are known as piglets.[1] Pigs are omnivores and are highly social and intelligent animals.[2]
A pig is any of the animals in the genus Sus, within the Suidae family of even-toed ungulates. Pigs include the domestic pig and its ancestor, the common Eurasian wild boar(Sus scrofa), along with other species; related creatures outside the genus include the wild boar, peccary, the babirusa, and the warthog. Pigs, like all suids, are native to theEurasian and African continents. Juvenile pigs are known as piglets.[1] Pigs are omnivores and are highly social and intelligent animals.[2]
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