“At the Kansas station the following experiment was conducted, and illustrates the low cost of a ration including alfalfa hay for roughness as compared with a ration in which prairie hay was used. The experiment was with ten cows. The first ration consisted of 21 pounds of alfalfa hay and 9 pounds of corn. While the cows were on this ration each produced an average 26 pounds of milk per day, the milk containing 3.9 per cent of butterfat. To formulate a ration from prairie hay and bran which had the same amount of nutrients, we were obliged to feed 19 pounds of bran and 15 of hay. Fed on this each cow produced only 24 pounds of milk per day, containing 4 per cent of butterfat. The 21 pounds of alfalfa hay at $7 per ton, which is rather a high estimate, and 9 pounds of corn at 70 cents per hundred weight cost 13.6 cents per day. At this rate it cost 3¹⁄₃ cents to produce a gallon of milk, or approximately 13.5 cents for a pound of butterfat. Estimating bran at $16 per ton and prairie hay at $5 per ton, the cost of the second ration was 18.95 cents per day, and milk approximately 7 cents per gallon, making the butterfat worth 19.7 cents per pound. “The following two tables show the difference in cost between a ration in which alfalfa is used for part of the roughness and one which contains no alfalfa but has the same amount of digestible nutrients: Alfalfa hay 19 lbs at $ 7.00 per ton $ .066 Corn 7 lbs at .70 per cwt .049 Bran 2¹⁄₂ lbs at 18.00 per ton .0225 ------- $ .1375 Sorghum hay 10 lbs at $ 3.50 per ton $ .0175 Prairie hay 12 lbs at 6.00 per ton .036 Ground wheat 8 lbs at .80 per bu .1066 Cottonseed meal 3 lbs at 24.00 per ton .036 ------- $ .1961 “As shown by the table a gain of 5.86 cents is made by feeding the alfalfa. Being a proteinaceous feed it can to a great extent be substituted for cottonseed meal, linseed meal or gluten meal, and will entirely substitute other leguminous hays and forages, such as soy bean hay, cowpea hay, clover hay and vetch hay, any one of which is more expensive, for nutrients contained, than alfalfa hay.