Secondary products revolution

Andrew Sherratt's model of a secondary products revolution involved a widespread and broadly contemporaneous set of innovations in Old World farming. The use of domestic animals for primary carcass products (meat) was broadened from the 4th-3rd millennia BC to include exploitation for renewable 'secondary' products: milk, wool, traction (the use of animals to drag ploughs in agriculture), riding and pack transport.

单词	Secondary product
释义	Secondary product 英语百科 Secondary products revolution Andrew Sherratt's model of a secondary products revolution involved a widespread and broadly contemporaneous set of innovations in Old World farming. The use of domestic animals for primary carcass products (meat) was broadened from the 4th-3rd millennia BC to include exploitation for renewable 'secondary' products: milk, wool, traction (the use of animals to drag ploughs in agriculture), riding and pack transport.
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