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Urinary Calculi is the formation of crystals or stones in the urinary tract which block the elimination of urine from the body.(These are commonly referred to as Kidney Stones in humans.) Most often these crystals are formed due to a metabolic imbalance in the body caused by feeding too much grain to bucks and wethers.rinary Calculi is the formation of crystals or stones in the urinary tract which block the elimination of urine from the body.
Calculi Urine Strainer (kidney stones collector) is a disposable, white funnel that has an ultra-fine mesh bottom specially designed to catch small kidney stones in the urine. Urine strainers can fit easily in any specimen collection hat containers.