We used to have Open Threads on this forum. I was hoping someone would bring them back. No one did. So now I'm the change I want to see in the world.
Use this thread to post things that are awesome, but not awesome enough to be full posts. This is also a great place to post if you don't have enough karma to post on the main forum.
Also Happy New Year!
I believe funding work on corporate engagement to improve farm animal welfare probably has much higher expected value than any personal decisions about diet. There are limitations in this area regarding room for more funding, but Compassion in World Farming USA is an effective organization that seems to have room for funding in corporate engagement:
http://www.openphilanthropy.org/blog/suggestions-individual-donors-open-philanthropy-project-staff-2016#Compassion_in_World_Farming_USA_
That being said, I personally find these questions interesting, and here are some thoughts.
I believe the average beef cattle in the US has net positive welfare. So in terms of direct effects on farm animal welfare, I believe eating beef increases welfare. There are indirect effects though, and some are presumably negative, including climate change, and mice and birds killed in fields for feed production. Other indirect effects might be positive (i.e. reducing insect suffering). There are other reasons why people might want to avoid beef though, such as the view that killing animals for food is inherently wrong, or the view that unnecessary harm to an animal (i.e. castration without anesthesia) cannot be offset by X number of happy days on pasture.
Beef cattle might be alone in this regard. I thought that the average dairy cow in the US might have net positive welfare but I did some more investigation and now believe their welfare is somewhat net negative. Other potential candidates for animals in the US with net positive welfare may be other small ruminants (sheep, goats) but I couldn't find much evidence on the welfare of these animals.
The overwhelming majority eggs in the US come from hens raised in battery cages, which I believe experience strongly net negative welfare. Moving from conventional eggs to cage-free eggs probably substantially reduces suffering. I believe avoiding eggs completely would eliminate suffering even further though, because cage-free has its own animal welfare problems.
"Organic" in the US probably means at least somewhat improved welfare in some animal products (eggs, pork, dairy), and not in others (chicken, beef). Generally organic in the US prohibits extreme confinement, which is relevant for egg-laying hens (bans battery cages), the mothers of pigs raised for pork (bans gestation crates), and dairy cows (bans tie-stalls which ~10% of dairy cows are housed in). Organic dairy also requires that the cows spend some time on pasture.
I haven't spend much time looking at other animal welfare certifications, but I'm skeptical of most of these. I'd note though that Open Philanthropy has issued a grant to the Global Animal Partnership (GAP) which suggests to me that GAP certifications are meaningful. That doesn't mean, however, that GAP certified animal products are from animals with net positive welfare.
http://www.openphilanthropy.org/focus/us-policy/farm-animal-welfare/global-animal-partnership-general-support
I should note that farmed fish probably have net negative welfare, and eating farmed fish is probably particularly harmful because of how long they live (~20x as long as chickens raised for meat). I believe wild fish is probably similarly harmful, because supply of wild fish seems to be constrained and so demand for wild fish probably mostly just increases supply of farmed fish. I mention this because many people have the impression that eating less meat and more fish would reduce farm animal suffering, and I believe this view is likely very wrong.
Could you explain why the same factors don't apply to chicken?