Open Access. Powered by Scholars. Published by Universities.®

Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2009

Iowa State University

Physical Sciences and Mathematics

Displacement rate

Articles 1 - 1 of 1

Full-Text Articles in Social and Behavioral Sciences

Land-Use Credits To Corn Ethanol: Accounting For Distillers Dried Grains With Solubles As A Feed Substitute In Swine Rations, Jacinto F. Fabiosa Apr 2009

Land-Use Credits To Corn Ethanol: Accounting For Distillers Dried Grains With Solubles As A Feed Substitute In Swine Rations, Jacinto F. Fabiosa

CARD Working Papers

Many studies on the impact of biofuels on greenhouse gas emissions do not consider indirect land-use change and land use avoided because of co-products utilization. This paper provides estimates of the land-use credit for corn ethanol when its by-product—distillers dried grains with solubles (DDGS)—is used in swine feed rations to substitute for corn and soymeal. The range of estimates used here covers the land-use credit used in the literature. Moreover, this study departs from earlier studies because feed rations from a least-cost optimization are used rather than rations from feeding trials, and DDGS nutrient profile variability is fully ...