Temple Grandin has made huge contributions to the natural management of livestock. I must admit that I thought she was a kook the first time I met her forty years ago in Arizona when we were both working as reporters for livestock publications. Over the years I have developed a deep appreciation for her handicap and her contributions to the art of handling livestock. Many of her findings can be applied to dog training as well.
http://www.midsouthhorsereview.com/articles/2009/11/02/news/news25.txt
http://www.midsouthhorsereview.com/articles/2009/11/02/news/news25.txt