. Department bulletin. Agriculture; Agriculture. 20 BULLETIN 1143, U. S. DEPARTMENT OF AGRICULTURE. (Table 4). An average of spring pigs has been used. It took these pigs an average period of 20 days, extending from September 20 to October 10, to harvest the acre. The average total weight of these pigs was 426 pounds at the beginning of the period, and they gained an average of 119 pounds. The average daily gain per pig for the foiir years was pounds per day. Table 4.—Results obtained by pasturing 1 acre of corn with spring pigs at Huntley, Mont., in 1916, 1917, 1918, and 1920. Num- b
. Department bulletin. Agriculture; Agriculture. 20 BULLETIN 1143, U. S. DEPARTMENT OF AGRICULTURE. (Table 4). An average of spring pigs has been used. It took these pigs an average period of 20 days, extending from September 20 to October 10, to harvest the acre. The average total weight of these pigs was 426 pounds at the beginning of the period, and they gained an average of 119 pounds. The average daily gain per pig for the foiir years was pounds per day. Table 4.—Results obtained by pasturing 1 acre of corn with spring pigs at Huntley, Mont., in 1916, 1917, 1918, and 1920. Num- ber of pigs. Weights of animals and feed (pounds). Year. Pasture period. Hog weights. Corn con- Yield of check plat (bushels). Date on. Date off. Days. Initial. Final. Gain. Daily gain per pig- Total. Per pound of gain. 1916 1917 1918 19191 4 6 6 Sept. 30 Sept. 28 Sept. 6 Oct. 9 Oct. 15 Sept. 18 9 17 12 435 442 442 506 545 496 71 103 54 .75 924 538 448 1920 6 Sept. 18 Oct. 29 41 387 635 248 806 Average, 4 years. Sept. 20 Oct. 10 20 426 545 119 679 1 Yield of check plat. a Corn dried up before making grain. The average yield of the check plat was bushels per acre. With this yield as a basis, the pigs averaged 1 pound of gain for each pounds of corn eaten. An average of 57 pounds of alfalfa hay was fed with the corn. /9/5 /9/6 /9/7 /9/8 /9/9 /920 /92/ rtPX. M#Y JUNE JULY &L/G. SEPT. CORN Fig. 1.—Diagram showing graphically the period in each year during which pigs were pastured on rye, |. peas, barley, and corn and the gain mado while on each crop and between each weighing, arranged to show the combined gain on rye, peas, and barley. Figure 1 presents graphically the data obtained from this rotation each year. The base line of each figure represents the initial weight of the hogs. The increase in height of the figure represents the increase in weight of the hogs as the season p
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