The result of this experiment shows that 2000 pounds of grain produced 6263/4 pounds live weight, or 17.3 pounds of growth for every bushel of corn and equivalent; that we can approximate one dollar per bushel for corn when pork is five and one-half cents per pound; that the dam can be made to increase in flesh during the suckling period; that the proper balancing of the ration is necessary to secure these results.
The object of this experiment is to determine the most profitable development of a litter of pigs and the maintenance of the dam. In other words to produce the greatest possible live weight with a given quantity of grain without detriment to the vigor and constitution of the growing animal. The experiment, therefore, involves two points, namely, increase of flesh and fat in proper balance with increase of bone and skin. The subject is a registered Poland China sow, two years old. She was purchased of W. M. McFadden, West Liberty, Iowa. She scored second in points of excellence at the State Fair one year ago. So we have a good animal to start with. She farrowed March 3, 1891. Her litter consisted of four pigs, three boars and one sow. The pigs and dam were weighed when the pigs were thirty-six hours old. The weight of the pigs, was thirteen and one-fourth pounds; weight of dam, 348 pounds. The weighing was done March 4, at two o’ clock p. m . The supplementary feed was prepared by mixing ground barley, oil meal, corn and cob meal and bran, the mixture being soaked thirty-six hours in cold water before feeding. The principal feed was ear corn, and shelled corn soaked. The sow was fed three times a day during the first two periods and twice a day thereafter.
Wilson, James; Patrick, G. E.; Curtiss, C. F.; and Kent, D. A.
"Hog experiment No. 1,"
Bulletin: Vol. 2
, Article 5.
Available at: https://lib.dr.iastate.edu/bulletin/vol2/iss14/5