Fish/Shellfish

Originally written by Luis Costigan of Effective Altruism Japan, modified by Yuki Takahashi. Summary Farm animal welfare is considered a high-priority cause area by the Effective Altruism community due to the sheer scale, neglectedness, and tractability of the problem. Egg-layer hens are the most farmed animals both globally and in Japan (excluding fish). The number is similar to that of humans. Over 99% of layer hens in Japan are reared in battery cages. Battery cages are plausibly extremely bad; many sources have evaluated a life in a battery cage to provide the lowest levels of welfare across all farmed land animals. Campaigning for corporations to source eggs from cage-free producers…