Agriculture Reference
In-Depth Information
developed countries. Over 90 percent of world milk production takes place within mixed
farming systems. The mixed farming system is most common in the United States,
Europe, and northeastern Asia.
As population increases, some systems are coming under pressure to modify.
Intensive landless systems are on the decline in Europe, while production in grassland
and mixed farming systems is increasing in most of the world.
7.4
CHICKEN, DUCK, AND GOOSE PRODUCTION
Chicken
Latin Name: Gallus gallus or Gallus domesticus (Fig. 7.6)
Other English Names: Rooster, hen, cock, cockerels, pullets, chick
Duck
Latin Name: Anas platyrhynchos (Fig. 7.7)
Other English Names: drake, duckling, hen
Goose
Latin Name: Anser anser and Anser cygnoides (Fig. 7.10)
Other English Names: gander, gosling
Chickens are found in all countries of the world, with the greatest concentrations in China,
the United States, Indonesia, and Brazil (Fig. 7.8). Since they are kept in close proximity to
humans, chickens are found in nearly every climate where humans live.
Figure
7.6.
Farmyard chickens in Ecuador.
