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Subject: Animal Nutrition × Author: FANCON, AIBANIAIRI × End date: 2022 × Start date: 2020 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    EFFECTS OF FEEDING OF PREBIOTICS, PROBIOTICS AND SYNBIOTICS IN BROILER CHICKEN ON CORN-SOYA BASED DIET
    (College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, 2022-01) FANCON, AIBANIAIRI; Bhuyan, Robin
    An experiment was conducted at the Experimental Poultry Shed of the Department of Animal Nutrition, College of Veterinary Science, Assam Agricultural University, Khanapara, Assam to assess the effect of dietary supplementation of Prebiotic, Probiotic and Synbiotic on the performance, nutrient utilization, haemato-biochemical parameters and carcass traits of broiler birds. One hundred and eighty (N=180) day old commercial (Ven Cobb) broiler chicks were randomly distributed into four treatments groups.Each treatment had three replicates with 15 chicks in each replicate.Dietary groups consisted of Group-T0(control) birds which were fed basal diet without any supplementation;In Group- T1, birds were fed basal diet supplemented with Prebiotic (@ 0.2%); Group-T2: basal diet with 0.035% Probiotic; Group-T3(Synbiotic) contains basal diet with Prebiotic @0.2% + Probiotic @ 0.035 respectively. The basal diet was prepared as per ICAR (2013) recommended for Pre-starter, Starter and Finisher phase using commonly available feed ingredients. Results of the study showed that the average weekly body weight change (g/ bird), weekly gain in weight and total gain were significantly higher (P<0.05) in synbiotic, i.e., T3 group as compared to the other groups. The total gain in weight during the entire experimental trial was 1669.46±33.46, 1724.219±33.14, 1770.173±38.50 and 1827.952±40.36 (g/bird) for T0, T1, T2 and T3 groups respectively. The feed intake did not differ significantly among the groups. However, significantly better (P<0.05) FCR was observed in T3, followed by T2, T1 and T0. The Broiler Performance Efficiency Index (BPEI) among the experimental groups was 91.06±0.05, 98.67±0.05, 104.66±0.04and 109.88±0.05for T0, T1, T2 and T3 group, respectively; where T3 showed the best (P<0.05) BPEI followed by T2, T1 and T0.The retention of Nitrogen differed significantly among the groups, with T3 showing better results as compared to the other groups. However, Retention of Phosphorus and Calcium did not differ significantly among the groups. The serum total protein, albumin, globulin, superoxide dismutase and GGT did not show any significant effect among the treatment groups, however serum cholesterol was lowest (P<0.05) in T3 group as compared to the other groups. The dressing percentage, prime cuts, giblet weights, lymphoid organs weight did not differ significantly among the groups. Caecal microbial profile showed that Lactic acid bacteria was increased significantly in the prebiotic and probiotic supplemented groups, whereas E. coli count did not show any significant effect among the groups. The net profit per bird was found highest in the T3 group (Rs.20.51), followed by T2 (Rs.16.13), T1 (Rs.12.37) and T0 (Rs.6.54) groups.