EFFECT POWDER OF GOLDEN SNAIL (P. CANALICULATA) AND SUPLEMENTATION OF PROBIOTIC IN THE RATION TO THE PRODUCTION AND CARCASS PERCENTAGE OF PEKING DUCK IKHSANDI ABSTRACT The objective of the research is to study the effect powder of golden snail (p. canaliculata) and suplementation of probiotic in the ration to the production and carcass percentage of peking duck. The material used in this study is the peking duck. This research was conducted during 60 days by the inhabitants of Mireuk Lamreudeup, Baitussalam Subdistrict, Aceh Besar. Research design used was completely randomized design (CRD), which consists of 5 treatments and 4 replications where each of replications was an experimental unit consisting of 5 peking ducks. The treatment is tested to each sample is R1 (basal rations); R2 (96% + 4% R1 golden snails and 0,5 ml Probiotics); R3 (94% R1 + 6% golden snails and 0,5 ml Probiotics); R4 (92% R1 + 8% golden snails and 0,5 ml Probiotics); R5 (R1 + 90% 10% golden snails and 0,5 ml Probiotics). Variabel measured include : final body weight, carcass weight, carcass percentage, weight of chest pieces (chest, wings, leg and back weight) and the percentage of the chest, wings, leg, and back percentage of carcass pieces. The result of this study shows that the use of golden snails powder and probiotic supplementation of probiotic in the rations significantly effect (P