Effect of Addition of Pediococcus pentosaceus Strain N6 Isolate and Cassava Peel on Total Microbes and Gastrointestinal Organ Weight of Super Native Chicken

¹ Animal 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 Sumatera Utara, Medan, Sumatera Utara, Indonesia

^* Corresponding author: jamayahnur@usu.ac.id

Abstract

The use of commercial antibiotics causes residues in chicken meat. The study aims to determine the best concentration between Pediococcus pentosaceus Strain N6 isolate and cassava peel flour on the weight of the digestive tract organs of super native chickens The study consisted of 2 stages. Stage I. Determination of the best synbiotic concentration. using a completely randomized design (CRD) 4 treatments and 5 replicates. Treatments consisted of R0 = 1 ml isolate without the addition of synbiotics, R1 = 1 ml + 3% isolate (0.3 g cassava peel flour), R2 = 1 ml + 6% isolate, and R3 = 1 ml + 9% isolate. The parameter observed was a total microbial colony (TPC). Phase II: addition of synbiotics to super native 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 measured: TPC, weight of digestive tract organs: duodenum, jejunum, and ileum, test results, R3 produced TPC: 64 X 109 CFU/ml, decreased the weight of duodenum, jejunum and ileum (0.73%, 1.79% and 0.32%).