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Digestion of the diet and fecal excretion of neutral and acidic steroids by veal calves fed a milk replacer supplemented with cholesterol



Digestion of the diet and fecal excretion of neutral and acidic steroids by veal calves fed a milk replacer supplemented with cholesterol



Nutrition Reports International 28(4): 825-834



Veal calves, aged about 9 wk, were fed a milk replacer diet without or with added cholesterol (1%, w/w; on the basis of air-dry matter). The calves fed cholesterol displayed significantly elevated concentrations of serum cholesterol within 5 days. Dietary cholesterol did not significantly influence body weight and body weight gain of the nonruminant calves. The feed conversion ratio (kg feed/kg body weight gain) was significantly decreased by dietary cholesterol. During days 19 to 22 of the experiment, feces and urine were quantitatively collected in order to investigate the digestion of the diet and the fecal excretion of steroids. Cholesterol-feeding of the calves did not affect the apparent digestibility of dry matter, N, crude fat, ash and carbohydrates. N retention tended to be increased in the calves fed cholesterol, but this effect did not reach statistical significance. Dietary cholesterol drastically increased the fecal excretion of the neutral steroids cholesterol, coprostanol and coprostanone, but it did not alter the fecal excretion of bile acids.

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Accession: 001182685

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