author(s)
Anand Kumar Jain, Aditya Mishra, Deepika D Caesar, Jyotsana Shakkarpude, Arun Mourya, RPS Baghel and RK Sharma

abstract
Poultry is the fastest growing livestock sector in the developing countries. The global poultry sector is expected to continue to grow, as demand for poultry meat is driven by growing needs, population, rising incomes and urbanization. The present experiment was conducted to investigate the effect of inorganic and chelated trace minerals supplementation on production performance and carcass traits in broilers. A total of 216 broilers randomly divided into twelve groups and each group consisting of 18 broilers in 3 replicates. T1 group was kept as control. T2, T3 and T4 group was supplemented with zinc (40 mg/kg of feed) inorganic, chelated and 50% chelated form respectively. T5, T6 and T7 groups was supplemented with selenium (0.3 mg/kg of feed) from inorganic, chelated and 50% chelated form respectively. T8, T9 and T10 groups was supplemented with chromium (2 mg/kg of feed) from inorganic, chelated form and 50% chelated form respectively. T11 and T12 group was supplemented with combination of all 3 minerals from inorganic and chelated form respectively. Significant difference (p<0.05) was observed in body weight gain between all the groups as compared to control group. The maximum body weight gain was attained in T12 group, supplemented with combination of chelated form of Zn, Se and Cr whereas, minimum body weight gain was attained in T1 (control group). Significant difference (p<0.05) in total feed intake (g) was observed in T12 group as compared to control group. Maximum feed intake was observed for T12 group and minimum feed intake was observed for T7 group. The FER differed significantly (p<0.05) for all the treatment groups as compared to T1 group. Significant difference (p<0.05) was observed in dressed weight (%) and drawn weight (%) in T12 as compared to T1 group. Eviscerated weight (%), organ (liver, heart gizzard, giblets and pancreas) weight (% live wt.) and percent processing loss (blood, feather and head) differed non significantly between all the groups. In the present investigation chelated Zn, Se and Cr supplementation showed better body weight gain, which could lead to increased production performance and minimum mortality in broilers.