Rilevazione dell'eventuale produzione fisiologica di boldenone nel vitello a carne bianca

The Authors studied the possible physiological presence of 17-alpha-boldenone in urine and faeces of veal calves raised in a controlled environment, and investigated the possible interference of faecal contamination as a reason for boldenone urinary positivity. Results show that in any subject the boldenone is present in faeces and absent in urine and that faecal pollution causes urinary positivity. The Authors evaluated also the influence of two milky diets with different content in phytosterols showing a greater positivity in the group of subjects fed with the diet having the higher content in phytosterols.