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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.
Bladder stones, also called bladder calculi, often form when concentrated urine sits in your bladder. Bladder stones usually develop secondary to another condition, such as an enlarged prostate or a urinary tract infection. Kidney stones (renal calculi or nephrolithiasis) are pieces of minerals found in the kidneys.