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Increasing the Butterfat Percentage in Milk through the Use of Cottonseed Meal

Iowa Agricultural Experiment Station

Abstract

1. The substitution of cottonseed meal for other protein supplements in the ration of dairy cows caused, on the average, a slight temporary increase in the fat content of the milk. The animals did not give uniform results, however, and the full effects were not noted until a few days after administration started.
   
2. The substitution of cottonseed meal for corn produced a marked temporary increase in the fat content of the milk though the full effects were not noted until a few days after the work started. The animal showed a fairly uniform reaction.
   
3. The feeding of cottonseed meal for a second period, separated from the first period by a few days only, depressed rather than increased the fat content of the milk.
   
4. Some cows will be put off feed by even small quantities of cottonseed meal.