DOMESTICATION AND BREEDING
Wild animals were first domesticated by man in the Neolithic.
Later on species were bred according to a range of possible uses, i.e. animals to carry or draw goods, to produce raw material (fur, wool, feathers), or food (meat, milk, eggs). All species also produce manure that is very useful to fertilize the fields.
As from the end of the 18 th century, the so-called physiocrats proposed a new agriculture involving more feed, i.e. more animals, i.e. more manure, i.e. more cereals.