The effect of zeolite (clinoptilolite) on experimentally induced metabolic acidosis was studied in sheep under experimental conditions. Sucrose was administered at the doses of 10 and 15 g per kg l. w. either alone or, in other groups, together with 0.45 g zeolite per kg l. w. The content of volatile fatty acids in rumen contents and the indices of acid-base homeostasis of blood were monitored in the subsequent 24 and/or 48 hours. The examinations showed that simultaneous administration of zeolite with sucrose failed to prevent the rise of metabolic acidosis but the drop in the indices of acid-base homeostasis was less severe, or was delayed by three to six hours. The dose of 0.45 g zeolite per kg l. w. was found to be insufficient for the prevention of a medium-severe or severe course of metabolic acidosis.
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