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The Effect of Alfalfa Ash upon the Digestibility and Utilization of Cottonseed Hulls by Sheep¹

Oklahoma Agricultural Experiment Station

Abstract

The addition of alfalfa ash to a semi-purified ration for sheep in which all minerals except calcium, phosphorus, sodium, chlorine and sulfur were supplied by cottonseed hulls improved the digestibility of all ration components.

A marked loss in weight was noted in sheep receiving the basal ration, and it was found that this condition could be reversed by addition of alfalfa ash. A depletion-repletion regimen was therefore feasible, and was used to study the effect of various additives to the basal ration. With this technique, a synthetic alfalfa ash promoted weight gain equal to that on natural alfalfa ash, while cobalt resulted in no improvement.

¹ Published with the approval of the Director of the Oklahoma Agricultural Experiment Station. Paper Number 3 on studies of the effect of alfalfa ash upon the utilization of roughages.

² Departments of Animal Husbandry and Agricultural Chemistry.