A growing area of agriculture involves raising insects for food, animal feed, or other products. In terms of food, insects are nutritious and can be raised more cheaply than cows with a smaller carbon footprint. In addition to food products, insect produces include honey, silk, dyes, and a substance called "lac" which can be used for treating wood. Many of the techniques and practices used in other biotechnology careers are also used in insect farming. These include quality control, supply chain management, animal handling, documentation, and managing production.