Blood metabolites and hormones--especially glucose and insulin--in veal calves: effects of age and nutrition.

摘要: Summary Veal calves often develop insulin resistance, hyperglycaemia and glucosuria. We have studied effects of age nutrition on blood metabolites hormones, with major emphasis glucose insulin, in four groups veal from 66–69 kg until slaughter at 175–196 kg. Calves were fed milk replacers which differed respect to lactose, total sugar, protein fat content. Mean intakes 1, 2, 3 4 lactose (1.24, 1.08, 0.95 0.66 kg/d), sugar (1.27, 1.10, 1.01 96 crude (0.40, 0.48, 0.65 0.49 kg/d) (0.32, 0.31, 0.37 0.46 different. Average daily gains 1.46–1.49 feed/gain ratios 1.49–1.61 kg/kg. Glucose concentrations not associated intakes, but followed albeit differently the start end growth trial. Thus, higher (P < 0.05) than trial all groups, whereas increased increasing only group 2. In conclusion, affected degree modified hyperinsulinemia a given age, age-dependent rise could be explained by alone.