Scienceline Publications Journal of World's Poultry Research 2322-455X 7 2 2017 June Effect of Chemically Treated Litter on Ammonia Emmission, Performance and Carcass Characteristics of Broiler Chicken 88 93 http://jwpr.science-line.com/attachments/article/41/J%20World%20Poult%20Res%207(2)%2088-93,%202017.pdf EN Arjumand Rashid Animal Husbandry Department Kashmir, India Mohd Tufail Banday Division of Livestock Production and Management, Faculty of Veterinary Sciences and Animal Husbandry, Shuhama, Srinagar, SKUAST-K, Kashmir, India Sheikh Adil Division of Livestock Production and Management, Faculty of Veterinary Sciences and Animal Husbandry, Shuhama, Srinagar, SKUAST-K, Kashmir, India Azmat Alam Khan Division of Livestock Production and Management, Faculty of Veterinary Sciences and Animal Husbandry, Shuhama, Srinagar, SKUAST-K, Kashmir, India Saim Qureshi Division of Livestock Production and Management, Faculty of Veterinary Sciences and Animal Husbandry, Shuhama, Srinagar, SKUAST-K, Kashmir, India Madeeha Untoo Division of Livestock Production and Management, Faculty of Veterinary Sciences and Animal Husbandry, Shuhama, Srinagar, SKUAST-K, Kashmir, India Mohd Ashraf Pal Professor, Division of Livestock Products Technology, Faculty of Veterinary Sciences and Animal Husbandry, Shuhama, Srinagar, SKUAST-K, Kashmir, India The condition of litter is a single major factor in deciding the emission of various harmful gases particularly ammonia, which is a major environmental concern, affecting the overall welfare of birds. Therefore, a study was conducted with the objectives to assess the effect of two chemicals namely aluminum sulfate and calcium carbonate on litter ammonia emission, performance and carcass characteristics of broiler chicken. A total of 240 day old Cobb broiler chicks were randomly distributed into four treatment groups, each having 4 replicates of 13 chicks each. In the control group no chemical was added to litter; however, in other groups litter was treated with Aluminum Sulfate (AS) @ 25g/kg; Calcium Carbonate (CC) @ 50g/kg; and combination of 25g Aluminum Sulfate and 50g Calcium Carbonate/kg (ASCC). The results revealed a significant reduction in litter ammonia emission in AS and ASCC groups compared to control and CC, which in turn had no statistical difference among themselves. AS was found to be highly effective in reducing the ammonia emission levels, either by itself or in combination, with values of 9.46 ± 0.35 (AS) and 10.499 ± 0.39 (ASCC) compared to 47.7 ± 2.40 and 51.15 ± 1.85 ppm in CC and control. A significant increase in the Body Weight Gain (BWG) of chicks in AS and ASCC groups with final BWG of 1069.76 g in control, 1358.21 g in AS, 1086.66 g in CC and 1370 g in ASCC. Likewise, an improved FCR of 1.86 was observed in both AS and ASCC groups followed by 1.98 in CC and 1.99 in control. No significant differences were found with respect to various carcass characteristics among treatment groups as compared to control. In conclusion, compared to CC, AS was found to be highly effective in reducing the litter ammonia emission and improving the performance of birds. Aluminium sulphate Ammonia emmsision Broiler chicken Performance