U.S. Hog Production From 1992 to 2009: Technology, Restructuring, and Productivity Growth

William McBride ; Nigel Key

United States Department of Agriculture

关键词: Hogs;    pigs;    farm productivity;    production contracts;    pork prices;    scale of production;    farm structure;    total factor productivity;    concentration;    Agricultural Resource Management Survey;   

RP-ID  :  ERR-158

学科分类：农业科学（综合）

美国|英语

来源: United States Department of Agriculture Publications

【 摘 要 】

U.S. hog farm numbers dropped by 70 percent over 1991-2009 while hog inventories remained stable. The result has been an industry with larger hog enterprises, increased specialization in a single phase of production, greater reliance on purchased rather than homegrown feed, and greater use of production contracts. This structural change has led to higher productivity and lower pork prices.