Effect of Addition of Pediococcus pentosaceus Strain N6 Isolate and Cassava Peel on Total Microbes and Gastrointestinal Organ Weight of Super Native Chicken N Br Ketaren 1*, Yunilas 1 , E S Siregar2
1Animal Science Program Study, Faculty of Agriculture, Universitas Sumatera Utara, Padang Bulan, Medan 20155, Indonesia.
2 Departement of Biology, Faculty of Mathematics and Natural Sciences, Universitas SumateraUtara, Medan, Sumatera Utara, Indonesia
Abstract
The use of commercial antibiotics is dangerous because it causes residues in chicken meat. it is necessary to research the use of synbiotics as an alternative to antibiotics. This study aims to determine the best concentration between Pediococcus pentosaceus Strain N6 isolate and cassava peel flour on the weight of chicken digestive tract organs. Stage I. Determination of the best synbiotic concentration. using a completely randomized design with 4 treatments and 5 replicates. Treatment R0 = 1 ml isolate (control), R1 = 1 ml isolate + 3% (0.3 g cassava peel flour), R2 = 1 ml isolate + 6% cassava, R3 = 1 ml isolate + 9% cassava. Parameter: total microbial colonies. Phase II: addition of synbiotics to chicken feed. using RAL 4 treatments and 5 replicates. Treatment P0 = basal ration without synbiotic, P1 = basal ration + synbiotic 150 ml/kg ration, P2 = basal ration + synbiotic 300 ml/kg ration, and P3 = basal ration + synbiotic 450 ml/kg ration. Parameters: weight of digestive tract organs. The test results of treatment R3 produced the highest TPC: 7.64 X 109 CFU/ml. P3 treatment significantly reduced the weight of duodenum, jejunum and ileum (0.73%, 1.79% and 0.32%).
Keywords: Synbiotics, cassava flour, alternative antibiotics, digestive, microbial colonies
