Roger Epley Ph.D - Optimizing the Use of Distillers's Grains in Rations
Follow up email from Dr. Epley:
"There is an error in Table 4 in the paper. Under the column "No Minimum Lysine", the "Total feed cost, $/day" should be $4.91. And, the "Net after feed cost, $/day" should be $8.11. This gives us a 55 cent per cow advantage for the ration with the metabolizable lysine set at 6.3.% (of MP).
Also, it may be interesting to note that we actually do feed the ration with the metabolizable lysine set at 6.3% (of MP) to a herd of real live cows. And, we do get close to 100 lbs of milk with a 3.75% milk fat and 3.05% milk protein."