Abstract
The precentage of fat, total solids and ash of the milk produced by a group of holstein cows receiving cottonseed meal as the only conentrate was compared with that of a similar group receiving a mixture of corn gluten meal, wheat bran, ground corn and oats. The roughage was the same for the two groups. The data collected covered a feeding period of sixteen consecutive months.Pour months after placing the animals on their respective experimental rations the milk produced by the group receiving the cottonseed meal ration had a lower percentage of total solids, fat and solids-not-fat than that from the control group. Later the ash content likewise became lower.