英文文献：Rbst Use Among U.S. Dairy Farmers: A Comparative Analysis From 6 States-Rbst在美国奶农中的使用:来自6个州的比较分析
英文文献作者：Barham, Bradford L.,Foltz, Jeremy D.,Moon, Sunung,Jackson-Smith, Douglas
英文文献摘要：
This paper uses data from dairy farmers in six U.S. states to examine farm-level factors influencing the adoption of recombinant bovine somatatropin (rBST), a productivity-enhancing hormone that is injected in cows. The results of multinomial logit estimations of rBST adoption and disadoption show that herd size, education, and complementary technologies all play positive and important roles in rBST adoption.

本文使用了来自美国六个州的奶农的数据，研究了影响采用重组牛生长激素(rBST)的农场层面的因素，rBST是一种被注射到奶牛体内的提高生产率的激素。基于多项logit估计的rBST采用与失用结果表明，群体规模、教育、互补技术对rBST的采用均有积极的影响。