Effect of dietary mannan oligosaccharides and fructo-oligosaccharides on physico-chemical indices, antioxidant and oxidative stability of broiler chicken meat
Avishek Biswas, Namit Mohan, Kapil Dev, Nasir Akbar Mir, Ashok Kumar Tiwari
Abstract
Abstract The objective of this present study was to investigate the potentiality of prebiotics (mannan oligosaccharides-MOS and fructo-oligosaccharides-FOS) in replacement of antibiotic growth promoter and their relationship with physico-chemical indices, antioxidant and oxidative stability and carcass traits of broiler chickens meat. Accordingly, 240 day-old broiler chicks of uniform body weight divided in 6 treatment groups with 5 replicate each (5 × 6 = 30) having 8 birds in each replicate. Six corn based dietary treatments were formulated viz. T 1 (control diet), T 2 (T 1 + Bacitracin methylene di-salicylate @ 0.002%), T 3 (T 1 + 0.1% MOS), T 4 (T 1 + 0.2% MOS), T 5 (T 1 + 0.1% FOS), and T 6 (T 1 + 0.2% FOS). Significant ( p < 0.05) increase in cut up part yields (%) and reduction in cholesterol and fat content in T 4 (0.2% MOS) group. The water holding capacity (WHC) and extract release volume (ERV) were increase ( p < 0.05) in 0.1 or 0.2% MOS supplemented group. DPPH (1, 1-diphenyl-2-picrylhydrazy) was higher ( p < 0.05) and lipid oxidation (free fatty acid and thio-barbituric acid reactive substances) was lower ( p < 0.05) in T 4 group. The standard plate count (SPC), staphylococcus and coliform counts were decreased ( p < 0.05) in T 3 or T 4 group. Thus, it can be concluded that mannan oligosaccharides (MOS) may be incorporated at 0.2% level in diet for improved physico-chemical indices, antioxidant and oxidative stability and carcass characteristics of broiler chickens meat and it may be suitable replacer of antibiotic growth promoter.