Feeding microparticle protein sources composed-diet with addition of natural additive to produce clean product of broiler for consumer health friendly

Abstract

Abstract Evaluation of feeding diet composed of microparticle protein source added with inulin of chicory root and Lactobacillus acidophilus on intestinal bacteria population, protein digestibility, and performance of broiler was the purpose of the present study. Experimental animals were 248 birds of day old broiler with body weight of 48.2±0.50g (240 birds for the main experiment, and 8 birds for endogenous correction). Feed composed of microparticle protein source added with inulin of chicory and Lactobacillus acidophilus at 1.2%, respectively. A completely randomized design with five treatments and six replications (8 birds each) was set in the present study. Treatments tested were R0: diet with 20% intact protein (control); R1: diet with 18% microparticle protein, R2: R1 + 1.2% inulin of chicory; R3: R1 + 1.2% Lactobacillus acidophilus; and R4: R1 + 1.2% Lactobacillus acidophilus + 1.2% inulin of chicory. Total lactic acid bacteria (LAB) and coliform, protein digestibility, and broiler performances (muscle protein mass, feed intake (FI), body weight gain (BWG), and feed conversion (FCR) were the parameters observed. Data were subjected to analysis of variance and continued to Duncan test at 5% probability level. LAB population significantly (P<0.05) increased, and in contrast, coliform count and FCR significantly (P<0.05) decreased in R2, R3 and R4. Protein digestibility and BWG improved in R3 and R4, but FI enhanced only in R4. In conclusion, feed composed of microparticle protein sources with addition of either chicory inulin or Lactobacillus acidophilus at 1.2%, respectively, increase total LAB, protein digestibility and growth performances of broilers. The combination of both additives have more profound effect on productivity and produce a healthy meat product indicated by high muscle protein mass derived from host animal with low pathogen.