This is a linkpost for https://www.youtube.com/watch?v=jlw1W6vxkMw
In this EA Global: San Francisco 2015 talk, Nick Cooney surveys the cost-per-animal impact of current efforts to end animal suffering.
In the future, we may post a transcript for this talk, but we haven't created one yet. If you'd like to create a transcript for this talk, contact Aaron Gertler — he can help you get started.
Just to clarify - the picture of the sow is a farrowing crate, not a gestation crate. They are similar, but the farrowing crate is where the sows gives birth and is slightly wider. She will be in here for 3-4 weeks usually in the US. The gestation crate is where she is housed for the rest of pregnancy and is narrower. Both types of crate clearly constrain the sow from carrying out natural behavior, even making posture changes difficult.