Proceeding2562

1054 การประชุมวิชาการระดับชาติมหาวิทยาลัยทักษิณ ครั้งที่ 29 ประจ�ำปี 2562 วิจัยและนวัตกรรมเพื่อการพัฒนาที่ยั่งยืน Digestibility of organic waste and nutrient element composition of manure of Thai red-rounded millipedes ( Thyropygus allevatus Karsch, 1881) Chutimon Songprab 1* Yuphin Phimkhot 2 and Tanapan Patthamarnon 3 Abstract Introduction : Elimination of organic waste and production of organic fertilizer using decomposition of millipedes is now interesting. Objectives : To study feeding rate, digestibility and nutrient element composition of manure of millipedes cultured in organic waste. Methods : Thai red-rounded millipedes were cultured in 4 different organic waste levels (0, 20, 40 and 60 grams) with 9 milipedes for one month. Weight of the remaining organic waste and body weight of millipedes were recorded. Nutrient contents of millipede manure were also analyzed. Results : Feeding rate of millipedes in each experimental group was 0.047, 0.865, 1.339 and 2.021 g/day with average degradability of 1.46 3.26 3.33 and 3.46%. The average nitrogen content in manure was 6.49. 6.02 6.49 and 6.83%. The average phosphorus content was 186.00, 115.67, 121.33 and 125.33 mg kg-1 and the average potassium content was 254.67, 460.00, 819.00 and 905.33 mg kg-1. Conclusion : Feeding rate of millipedes tends to increase with the amount of organic waste. Millipedes are capable of decomposing organic waste and released manure with higher amount of nutrient elements compared to soil nutrient standard. Keywords : Millipedes, Organic waste, Digestibility, Nutrient elements