For comprehensive reports on animal agribusiness and its toll on farm animal welfare, the environment, and public health, browse through our Research Library below. Each report is available as a downloadable PDF.
Animal Agriculture Overview
- Top 30 egg-/laying hen-producing countries
- Top 30 pig-producing countries
- Top 30 chicken meat-producing countries
- Global number of animals raised for food
Farm animal welfare
- About chickens (2014)
- About pigs (2015)
- About fish (2009)
- About turkeys (2010)
- An HSUS Report: The Welfare of Intensively Confined Animals in Battery Cages, Gestation Crates, and Veal Crates
- Management of cage-free hens (2020)
- CẨM NANG NUÔI GÀ ĐẺ CÔNG NGHIỆP THEO PHƯƠNG PHÁP KHÔNG NUÔI NHỐT TRONG LỒNG CÁ THỂ (2020)
- Welfare issues with furnished cages (summary) (2024)
- Welfare issues with furnished cages (full report) (2024)
- Norsk Kylling: A case study for the future of broiler chicken production (2024)
Economics
- Cage- and crate-free implementation guide (2025)
- Business case for preimplantation group housing (2025)
- Business case for preimplantation group housing (2023)
- El caso de negocio para los sistemos pre-implantacion de alojamiento grupal (2025)
- Guia para implementação de compromissos livres de gaiolas e celas de gestação
- 非笼养和非限位 饲养实施指南
- Producer economic survey: Guidance for companies seeking cage-free eggs
Financial institutions
Human health implications of intensive animal agriculture
Archive
Humane World for Animals
Aquatic animals
The welfare of animals in the aquaculture industry (2008)
Fish and pain perception (2008)
Animal welfare and organic aquaculture in open systems (2009)
Welfare of crustaceans at slaughter (2008)
Welfare of farmed fish at slaughter (2008)
Cattle
Welfare of calves in the beef industry (2012)
Tail docking in dairy cows (2012)
The welfare of cows in the dairy industry (2009)
Animal welfare in the veal industry (2012)
Economics
Economics of alternatives to gestation crate housing of sows (2011)
Aspectos económicos de la adopción de alternativas al confinamiento de cerdas en jaulas de gestación (2011)
Farm animal welfare
HSI animal welfare guidelines for smallholder livestock programs (2014)
Animal welfare in the meat, egg and dairy industries (2009)
Welfare issues with the use of hormones and antibiotics in animal agriculture (2016)
Human and environmental health implications
The environmental, public health, and social impacts of pig factory farming (2012)
Impactos de la cría intensiva de cerdos en el medio ambiente, la salud pública y la sociedad (2012)
Health professionals & animal agriculture (published) (2009)
Human health & animal welfare risks of transport (published) (2007)
Zoonotic infectious diseases (published) (2007)
Human health implication of intensive poultry production (2008)
Food safety and fois gras (published) (2008)
Food safety and cage egg production (2010)
La inocuidad de los alimentos y la producción de huevos en jaulas (2010)
Human health impacts of odors from industrial farm animal production (2011)
Los impactos sobre la salud humana de olores emitidos por instalaciones de cría intensiva de animales de producción (2011)
Impact of industrial farm animal production on food security in the developing world (2014)
The industrialization of animal agriculture in the developing world (published)(2012)
Biosecurity challenges of industrial farm animal production (2013)
Public health impacts of factory farming in South Asia (2013)
intensive farm animal production and livestock-associated MRSA (2013)
The impact of animal agriculture on global warming and climate change (2014)
An HSI/India report: The impact of diet on water (2016)
An HSI factsheet: Diet and the environment (2016)
The impact of animal agriculture on the environment and climate change in Brazil (2011)
O impacto da criação de animais para consumo no meio ambiente e nas mudanças climáticas no Brasil (2011)
Factory farming in America: The true cost (2008)
Health professionals and climate change (2009)
Implications of farm animal-based bioenergy production (2009)
Chicken and turkey live hang and worker safety (2006)
Fact sheet: Non-therapeutic antibiotic use (2008)
Food safety concerns with downed cattle slaughter (2008)
Food safety risks associated with U.S. horse slaughter 2012)
Impacts of factory farms on local communities (2010)
Industrialized animal agriculture and rural communities (2008)
Industrialized animal agriculture and world hunger (2009)
Live bird markets and avian influenza (2007)
Non-therapeutic antibiotic use (2008)
Poultry production and avian influenza (2007)
Pigs
The welfare of animals in the pig industry (2014)
El bienestar de animales en la industria porcina (2014)
Welfare issues with gestation crates (2013)
Welfare of breeding sows in the pig industry (2010)
Welfare of piglets in the pig industry (2010)
Poultry
The welfare of animals in the egg industry (2011)
Animal welfare in the chicken industry (2013)
Animal welfare in the turkey industry (2008)
Manual catching of poultry (2009)
Transport of day-old chicks (2008)
Animal welfare in the duck industry (2008)
Animal welfare in the foie gras industry (2012)
Breeding for egg production (2009)
Hen welfare in battery cages and alternative systems (2009)
Understanding mortality rates of laying hens in cage-free egg production systems (2010)
Caponizing chickens (2008)
Animal welfare and food safety aspects of confining broiler chickens to cages (published) (2013)
Food safety in egg production systems (2011)