Piedmontese fattening calf with urethral obstruction. The presence of saline crystals (phosphate calculi) adhering to the preputial hair is a diagnostic element that can precede the manifestation of symptoms related to partial or total urethral obstruction: restlessness, dysuria, colic pain, kicking at the abdomen, raised tail, and frequent attempts to urinate. In cases of partial obstruction, a medical approach can be attempted by acidifying the urine with ammonium chloride added to the concentrate (0.5%) to promote the elimination of salts through the urine. In this case, a low urethrostomy was necessary: favorable outcome.
