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First domesticated animals
Dogs and cats, domesticated ~12,000 years ago.
Animals domesticated 9000-7000 BC
Sheep, goats, pigs, cattle.
Horses and donkeys domestication date
~3000 BC.
Poultry domestication date
~2000 BC.
Turkeys domestication date
1300s.
Percentage of world calories from animals
18%.
Percentage of protein from animals (world vs. North America)
World = 40%, North America = 62%.
Non-food contributions from animals
Fertilizer (NPK), cosmetics, glue (also soaps, lubricants, waxes).
Percentage of the world using animals for transport/work
~20%.
US households with dogs
62 million dogs.
US households with cats
37 million cats.
Expected world population in 2050
9.7 billion.
Factors increasing agricultural productivity
Mechanization, genetic selection, research.
Country with largest cattle numbers
India (30.5%).
Top US states with the most cattle
Texas, Nebraska, Kansas, California, Oklahoma.
Top milk-producing country
US.
Top dairy state
California.
Leading country in swine production
China.
Leading US state for swine
Iowa.
Top country for sheep numbers
China.
Top US state for sheep
Texas.
Top goat-producing country
China.
Top US state for goats
Texas.
Country with the most horses
US.
US state leading in horse numbers
Texas.
Country leading in poultry numbers
China.
Leading broiler state
Georgia.
Leading turkey state
Minnesota.
Leading egg-producing country
China.
Leading egg-producing US state
Iowa.