Impact of supplementing chelated manganese, zinc, and copper in broiler diets on growth performance, serum biochemical markers, and cecal short-chain fatty acids

The impact of replacing inorganic Mn, Zn, and Cu with chelated organic sources in broiler diets on growth performance, serum biochemical markers, serum mineral concentrations and cecal short-chain fatty acids over the course of a 35-day experiment. 120 one-day-old unsexed broiler chicks (Ross 308) were randomly assigned to five equal groups, with 24 chicks in each of the three replicates (8 per each). Group 1 was given a diet that comprised inorganic forms of Mn, Zn, and Cu sulphate and considered as control, whereas groups 2, 3, and 4 were received diets containing organic chelated forms of these elements, respectively (Mn, Zn and Cu glycine). Chicks in group 5 receiving diets containing a combination of organic- Mn, Zn and Cu glycine. Adding chelated organic Mn, Zn, and Cu glycine to broiler diets, improved growth performance metrics. In comparison to the inorganic-treated group, the groups supplemented with organic trace minerals consumed significantly less feed. The feed conversion ratio and European performance efficiency factor of the group treated with organic chelated trace elements showed a notable improvement. Furthermore, all organic-treated groups showed a substantial increase in serum total protein, globulin, serum Mn, Zn, Cu, Ca, & P concentrations, and cecal SCFAs. Reduced levels of the liver function test (ALT and AST), renal function test and lipid profile were observed in all groups that received organic chelated trace mineral. In conclusion, adding organic Mn, Zn, and Cu to broiler diets, resulted in noticeable improvements in all evaluated parameters tested in this experiment