The Effect of Carrier for Vitamin E on Liver Concentrations of Vitamin E and Vitamin E Excretion in Broilers

D. A. Lauzon, S. L. Johnston, L. L. Southern, Z. Xu
2008 Poultry Science  
Two experiments were conducted to determine the effect of 2 carrier sources of vitamin E on growth performance and excreta and liver vitamin E concentrations of broilers. Chicks were pretested from d 0 to 7 posthatching on a corn-soybean meal diet without vitamin E supplementation, and the experiments lasted from d 7 to 19 posthatching. Each treatment in both experiments was replicated with 6 pens with 5 chicks each. Initial and final BW were 155 and 684 g in experiment 1 and 155 and 691 g in
more » ... periment 2. In experiment 1, the dietary treatments were the corn-soybean meal diet with varying concentrations (0, 30, 100, or 300 IU/kg) of supplemental vitamin E either absorbed to verxite (VE) or adsorbed to silica (SE). In experiment 2, the dietary treatments were the 0 and 30 IU/kg of vitamin E as VE or SE. In experiment 1, feed intake decreased and gain:feed increased as concentration of VE increased, but feed intake increased and gain:feed decreased as concentration of SE increased (source × concentration, P < 0.03). Gain, feed intake, and gain:feed were not affected (P > 0.10) by
doi:10.3382/ps.2007-00241 pmid:18420984 fatcat:4drzc7xvingbxiw6kpaslmou2e