Animal husbandry in the British Agricultural Revolution of the 18th century, when livestock breeds like the Dishley Longhorn cattle and Lincoln Longwool sheep were rapidly improved by agriculturalists such as Robert Bakewell to yield more meat, milk, and wool. A wide range of other species such as horse, water buffalo, llama, rabbit and guinea pig are used as livestock in some parts of the world. Insect farming, as well as aquaculture of fish, molluscs, and crustaceans, is widespread. Modern animal husbandry relies on production systems adapted to the type of land available. Subsistence farming is being superseded by intensive animal farming in
Chicken breeds recognized by the American Poultry Association China; they are large, feather legged, and lay brown eggs: This group consists of eleven breeds from Belgium, France, Germany, and the Netherlands. They are mostly sprightly birds, the Faverolles being an exception: This class consists of five breeds from the United Kingdom and one from Australia: These breeds originating in Italy and Spain have white earlobes and tend to be productive layers of white eggs. In general they are flighty, and exceptional free-range birds, with both evasion and foraging skills: Other breeds ae grouped in this class, which has three subclasses: Game, Oriental, and Miscellaneous. The Game subclass includes