Estimating COVID ‐19 Impacts on the Broiler IndustryJoshua G. Maples,Jada M. Thompson, John D. Anderson,David P. AndersonApplied Economic Perspectives and Policy(2020)引用 32|浏览63关键词broilers,COVID-19,poultry,Q12,Q13,Q18AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要