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共检索到7条 ,权限内显示50条;
Poland: Large Commercial ASF Outbreak in Northeastern Poland
- 关键词：
- 年份：
- 2020
- 摘要：
- implemented protection and surveillance containment procedures. Since the begin ...
Climate Change Policy and the Adoption of Methane Digesters on Livestock Operations
- 关键词：
- Methane methane digesters manure livestock climate change greenhouse gases carbon offset agricultural economics
- 年份：
- 2011
- 摘要：
- in the price of carbon could induce significantly more dairy and hog < ...
Changes in Manure Management in the Hog Sector: 1998-2004
- 关键词：
- hog production manure management structural change scale of production contracts environmental regulation Agricultural Resource Management Survey (ARMS)
- 年份：
- 2009
- 摘要：
- on manure management technologies and practices, the use of nutrient management ...
Characteristics and Production Costs of U.S. Hog Farms, 2004
- 关键词：
- hog operations
- 年份：
- 2007
- 摘要：
- Hog production in 2004 was characterized by wide variation in the types, sizes, ...
The Changing Economics of U.S. Hog Production
- 关键词：
- Hogs pigs farm productivity production contracts pork prices scale of production farm structure total factor productivity concentration Agricultural Resource Management Survey
- 年份：
- 2007
- 摘要：
- The increasing size and specialization of hog operations refle ...
Market Integration in the North American Hog Industries
- 关键词：
- hogs pigs pork hog industry imports trade Canada market integration structural change policy change
- 年份：
- 2004
- 摘要：
- with a strong U.S./Canadian dollar exchange rate, created incentives to expand ...
Economic and Structural Relationships in U.S. Hog Production
- 关键词：
- agricultural economics Hog production industry structure structural change production costs contract production manure management ARMS ERS USDA
- 年份：
- 2003
- 摘要：
- blems. The increasing market control and power concentrated among packers and la ...
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