Wow! I confess to be one of the people who preach long and loud about lammi being a relatively new phenomena (well in the numbers we see now of course) as I rarely came across or heard of cases growing up or in my earlier life with horses. I thought we worked them more and fed them less back then in the dark ages and that is why it is more prevalent now as horses are generally worked less and fed more. This very interesting article does question my thoughts and I look forward to further research.