Mixed crop-livestock farming: A review of traditional technologies based on literature and field experience
Livestock play an important role in human society. In mixed farming systems in particular, they are able to utilize products that are not exploited by humans: kitchen wastes, grass from roadsides and wastelands, and crop residues from the cereal harvest. Animals give multiple products in return, such as meat, eggs, milk, fibres, social status and income, while dung and urine are valuable for fertilizing gardens, fields and fish ponds.