Studies On The Effects Of Chromium On Energy,protein And Lipid Metabolism And Action Mechanism In Broilers

This study investigated the effects of chromium on energy, protein and lipid metabolism and action mechanism in broilers with CrCI3, Cr-Clly, Cr-Pie at 0.4 and 4mg/kg level (as Cr). Five hundred 1 -day broilers were fed separately after sex identification. At ten-day old, 420 selected broilers with an equal number of males and females were randomly assigned to the following treatment: control, 0.4mg/kg CrCI3, 4mg/kg CtCI3, 0.4mg/kg Cr-Gly, 4mg/kg Cr-Gly, 0.4mg/kg Cr-Pie and 4mg/kg Cr-Pie with six replicates at the equal number of males and females, ten broilers each . The experiment was divided into two phase, 3-6 weeks and 7-8 weeks. At six and eight weeks, metabolic experiment and slaughter experiment were conducted to evaluate the effects of chromium on energy, protein and lipid metabolism and deposition in broilers. The results indicated:1.Effects of chromium on growth performance and carcass characteristics in broilers. The results indicated: 1) For various chromium source, Cr-Pie and Cr-Gly significantly increased FT and ADO at 3-6 weeks than CrCI3 (pczlJ.05).And Cr-Pie markedly enhanced FT and ADO at 7-8 weeks (p<0.O5) and FT at 3-8 weeks (p