Beginning January 1, 1896. this station conducted a test between these meals. It was desirable to ascertain whether new process oil meal can be fed safely to cattle during usual fattening periods, and its comparative influence as a nutrient. The experiment lasted four months, January, February, March, and April. Nine animals were used and divided into three separate lots. Lot 1 consisted of two cows and a yearling steer; lot 2 consisted of two cows and a yearling steer. These two lots were as near alike as could be selected. Lot 3 consisted of a three year old bull, an aged cow and a yearling steer. The cows in lots 1 and 2 were bred before the trial begun, so as to ascertain whether there is anything in new process oil meal that would interfere with the health of cows during the period of gestation. Lot 1 was fed during January and February on old process meal and during March and April on new process meal. Lot 2 was fed during January and February new process meal, and during March and April on old process meal. Lot 3 was fed as lot 1, was—old process for two months and then new process for two months. The total gains made by the nine cattle while eating old process meal were 697 pounds, and the total gains made by them when eating new process meal were 783 pounds. Lot 1 gained 295 pounds on the old process meal and 328 on the new process meal. Lot 2 gained 244 on the old process meal and 201 on the new process meal. Lot 3 gained 158 on the old process meal and 254 on the new process meal. The average daily gain of each of the nine cattle was 1.36 pounds.
Wilson, James and Reed, C. D.
"Old versus new process oil meal.,"
Bulletin: Vol. 3
, Article 4.
Available at: https://lib.dr.iastate.edu/bulletin/vol3/iss33/4