Performance of local Bali ducks (Anas sp.) on feeding Asystasia gangetica flour in rations

Utilization of Asystasia gangetica flour in rations to reduce production costs and the role of phytochemical compounds in maintaining the performance of local Bali ducks. This research aims to determine the response of local Bali ducks to the provision of Asystasia gangetica flour in rations. The study used were completely randomized design with 4 treatments and 5 replications. Treatment given: 100% commercial ration + 0% Asystasia gangetica flour as control (A); 95% commercial diet + 5% Asystasia gangetica flour (B); 90% commercial ration + 10% Asystasia gangetica (C) flour; and 85% commercial ration + 15% Asystasia gangetica flour (D). Observed performance variables: initial body weight, final body weight, body weight gain, ration consumption, drinking water consumption, feed conversion ratio and production cost efficiency. The results of the research showed that initial body weight, final weight, body weight gain and consumption of rations containing Asystasia gangetica flour in ration had no effect on the performance of local Bali ducks. In addition, replacing some commercial rations with Asystasia gangetica flour caused the FCR value to increase. The highest FCR value in treatment D4 was 3.74 and decreased respectively in treatments D3, D2 and D1 (3.65, 3.58 and 3.51). Production costs decreased along with the increasing use of Asystasia gangetica flour (2.02-6.03%). It can be concluded that replacing some commercial rations with Asystasia gangetica flour of 10-15% can provide the same performance as treatment without Asystasia gangetica flour and reduce production costs.