Turmeric (Curcuma domestica) and Garlic (Allium sativum) towards broiler immune system infected by Salmonella pullorum bacteria as a feed additive

Abstract

The use of synthetic antibiotics as feed additive causes residues and drug resistance in bacteria. Synthetic antibiotcs can be obtained from fitobiotik. This study is conducted to determine the effects of phytobiotic Turmeric Extract, Garlic Extract, and the combination of Turmeric and Garlic Extracts as a feed additive on broiler immune system which is infected by Salmonella pullorum. One hundred of d.o.c were reared intensively for 38 days and divided into five treatments and four replications, with five chicks in each replicate. The treatments consisted of R0 to R4. R0 is basal diet without phytobiotic or antibiotic as a negative control; R1 is basal diet + 0.015% tetracycline (Salmonella pullorum infection as a positive control); R2 is basal diet + 2.5% TWE (Salmonella pullorum infection); R3 is basal diet + 2.0% GWE (Salmonella pullorum infection); and R4 is basal diet + 2.5% TGWE + Salmonella pullorum infection). The results show that feeding fitobiotik Turmeric Extract, Garlic Extract, and the combination of Turmeric and Garlic Extracts to maintain the immune responses of broiler does not show the effect on the H/L ratio (P>0,05), but it significantly affects the percentage of the bursa fabricius weight and percentage of the spleen weight (P<0,05). As the conclusion of this study, turmeric and garlic phytobiotic extracts diet as feed additive can maintain broiler immune responses which infected by Salmonella pullorum.