Humane Foundation
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Factory Farming Explained

Industrial animal agriculture produces the overwhelming majority of meat, dairy and eggs consumed worldwide. This hub collects our reporting on how confinement systems operate, the welfare and public-health costs they generate, and the reforms and alternatives being tested.

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狭いジェステーションストールに閉じ込められた妊娠中の豚の姿、動きが制限されている様子。
注目記事

妊娠中の豚の工場式畜産: 自然行動と工業的生産の乖離を追う 2024

現代の工場式畜産における妊娠中の豚の飼育方法は、その自然な行動を著しく制限し、福祉に深刻な影響を与えています。

著者 田中 恵子 · 4 分で読了

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よくある質問

What is factory farming?
Factory farming is the intensive confinement of animals at high density to maximise output per unit of land, labour and feed. It relies on standardised housing, routine veterinary inputs and rapid growth genetics.
How many animals are raised on factory farms?
Most farmed land animals worldwide — commonly estimated at around 70–90% depending on region and species — are raised in intensive systems rather than pasture-based ones.
Why is factory farming a public health concern?
Dense confinement raises disease-transmission risk, drives antimicrobial use, and concentrates manure and air pollution near farming communities.

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