Effects Of Organic Manganese And Organic Chromium On Growth Performance, Lipid Metabolism And Trace Element Deposition In Tissues Of Broilers

360 broilers were divided into 9 groups randomly (included 8 treatments), and each group with 4 repeats. The 3x3 (organic Manganese x organic Chromium) experiment was designed to study effects of adding organic manganese (0, 60 and 120mg/kg) and organic chromium (0, 400 and 600 g/kg) to the corn-soybean basal diets on growth performance, lipid metabolism, their deposition and their interaction in broilers. The results showed:1. Adding organic manganese or organic chromium had no significant effect on growth performance of broilers (P>0.05). All treated groups improved body weight of broilers. Adding 120mg/kg organic manganese alone reduced significantly abdomen fat percentage of broilers.2. Adding organic manganese alone significantly increased the manganese deposition in shinbone (P<0.05) and chromium deposition in chest muscle (P<0.01), reduced chromium deposition in liver and kidney (P<0.05). Adding organic chromium alone reduced chromium deposition in liver (P<0.05). There were significant interaction between manganese and chromium in reducing the deposition of manganese and chromium in liver (P<0.05). Results showed that mere were antagonistic effects of manganese and chromium in dose.3. At the end of the experiment, adding 120mg/kg organic manganese or 400 g/kg organic chromium alone significantly reduced the content of serum total triglyceride, total cholesterol and glucose, and abdomen fat percentage (P<0.05). And mere were significant interaction effects between manganese and chromium for all indexes about fat metabolism, and mat showed a tendency to reduce fat deposition (P<0.05).4. And the end of the experiment, adding organic manganese reduced the content of serum albumin and urea nitrogen, and the interaction between manganese and chromium improved the content of serum amino acid and urea nitrogen (P<0.05), adding organic chromium alone improved the content of serum amino acid and reduced the content of albumin and urea nitrogen significantly (P<0.01). Except for the index of serum albumin, the interaction between manganese and chromium affected all indexes of protein metabolism significantly (P<0.05).