Hay stocks are at a 50-year low, and the hay that is on the market is expensive. Vanessa Corriher-Olson, agriculture and life sciences professor at Texas A&M University, joins us with more. Hay stocks are at a 50-year low, and the hay that is on the market is expensive. Vanessa Corriher-Olson, agriculture and life sciences professor at Texas A&M University, joins us with more.