In forestomach disease, what does a decrease in cud-chewing frequency indicate?

• A. It signals improved digestion.
• B. A decrease indicates reduced rumen motility and buffering, increasing risk of acidosis and energy deficiency.
• C. It indicates hydration status only.
• D. It indicates dehydration is resolved.

Answer: (B)

A decrease in cud-chewing frequency points to reduced rumen motility and less saliva production. Chewing cud drives saliva flow, which provides buffering (bicarbonate and minerals) to neutralize fermentation acids in the rumen. When cud chewing drops, buffering is diminished and fermentation acids can accumulate, lowering rumen pH and raising the risk of acidosis. Slower rumen movement also impairs mixing and fiber digestion, contributing to an energy-deficient state. So this finding signals problems with rumen function and buffering, not an improvement in digestion or just hydration status.