EFFECT OF DIETARY SUPPLEMENTATION OF BANANA INFLORESCENCE WITH PROBIOTIC ON GROWTH PERFORMANCE IN BROILER CHICKS
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Date
2023-03-10
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COLLEGE OF VETERINARY AND ANIMAL SCIENCES POOKODE, WAYANAD, KERALA VETERINARY AND ANIMAL SCIENCES UNIVERSITY
Abstract
One ninety two Vencobb 430Y day-old broiler chicks were divided into six treatment groups (G1, G2, G3, G4, G5, and G6) with four replicates were reared under experimental condition and fed with a corn-soya based broiler basal diet (G1) and supplemented with probiotic Lactobacillus acidophilus, one billion cfu/g( LA) (G2), dried banana inflorescence at 0.5% (DBI) (G3), steam treated (SBI)banana inflorescence at 0.5% (G4), LA+DBI (G5) or LA+SBI (G6) for 42 days to study the growth performance, feed intake, nutrient utilization, fecal bacterial count, carcass characteristics, intestinal histo-morphometry and techno-economics. The cumulative weight gain observed at the end of six weeks were 1495.66 ± 48.86, 1333.85 ± 69.05, 1531.77 ± 83.75, 1631.25 ± 54.97, 1380.25 ± 73.01and 1434.59 ± 93.04 grams respectively in G1 to G6 groups and the values did not vary significantly. The cumulative feed intake in groups G1 to G6 were 3845.91 ± 51.09, 3715.68 ± 25.28, 3732.37 ± 48.03, 3614.41 ± 52.67, 3652.47 ± 15.68 and 3651.2 ± 13.03 grams and varied significantly (P < 0.01) and the highest was in G1. The cumulative FCR recorded in G1 to G6 groups were 2.54 ± 0.11, 2.79 ± 0.16, 2.40 ± 0.21, 2.22 ± 0.07, 2.67 ± 0.15 and 2.60 ± 0.19 respectively showed no variation between groups. Fresh excreta samples were collected from three birds per group on 7th 28thand 42nd day were examined for E coli count and lactobacilli counts. The Lactobacillus count varied significantly (P < 0.01) between treatments and increased in G6 (9.29 ± 0.02), G5 (8.86 ± 0.13), G4 (8.82 ± 0.06), G3 (8.62 ± 0.09) and G1 (8.55 ± 0.28) and G2 (8.26 ± 0.14) on day 28 and G4 (9.65 ± 0.08), G6 (9.48 ± 0.08), G3 (9.31 ± 0.14), G5 (9.11 ± 0.06), G2 (9.06 ± 0.07) and G1 (9.03 ± 0.05) on day 42. The E. coli count showed significantly (P < 0.01) high value in G4 (9.65 ± 0.05) than other groups. A three day metabolism trial was conducted in two birds from each replicate showed dry matter digestibility was significantly (P < 0.01) higher in G4 (77.51 ± 0.73), G5 (77.36 ± 0.79), G6 (76.21 ± 0.45), G3 (77.06 ± 0.69) than G1 (74.88 ± 0.46) and G2 (75.1 ± 0.61). The crude protein digestibility was similar between treatments. The ether digestibility significantly (P< 0.01) between 92.41 ± 0.46 (G4), 90.16 ± 0.53 (G2), 90.64 ± 36 (G3) than 81.86 ± 0.25(G1), 78.37 ± 0.99 (G5), 79.22 ± 0.6 (G6). The crude fibre digestibility were significantly (P < 0.01) higher in G2 (45.59 ± 1.25), G1(44.74 ± 1.07) and G6 (40.72 ± 1.14) against G3 (30.98 ± 2.21), G4(34.33 ± 1.99) and G5(31.61 ± 3.36). The carbohydrate digestibility was significantly (P < 0.01) higher in G5 (81.44 ± 0.67) than G3 (80.26 ± 0.59), G6 (79.12 ± 0.34), G4 (78.27 ± 0.75), G2 (76.41 ± 0.57) and the control G1 (76.46 ± 0.49).The organic matter digestibility was significantly (P< 0.01) higher in G5 (80.03 ± 0.7) than G4(79.53 ± 0.66), G3 (79.46 ± 0.61), G6
(78.87 ± 0.39), G2 (77.52 ± 0.55) and G1 (76.93 ± 0.43).Two birds from each replicate were subjected for the study of carcass traits and one bird from each replicate was subjected for gut pH and histomorphometry. The carcass weight differed significantly (P < 0.01) between the groups and the highest dressing weight wasrecorded in G4 (1228.94± 36.5) and G3 (1189.77 ± 5.61) followed by G1 (1079.80 ± 11.6) G6 (1039 ± 15.72), G5 (1025± 17.45), and G2 (1007.52 ± 10.97 and percent carcass yield were G4 (71.81± 0.18) G3 (71.7± 0.15), G6(71.26 ± 0.14), G5 (71.08 ± 0.18), G2 (70.92 ± 0.25) and G1 (70.42 ± 0.18) respectively. The percent thigh weight and Giblet were G5 (14.66 ± 0.21, 8.04 ± 0.3), G6 (14.54 ± 0.24, 8.22 ± 0.21), G2 (13.96 ± 0.33, 7.8 ± 0.18), G1 (13.08 ± 0.35, 7.63 ± 0.17), G3 (12.8 ± 0.19, 6.92 ± 0.26) and G4 (12.66 ± 0.35, 6.36 ± 0.26) respectively and differed significantly (P<0.01). The percent breast weight among groups did not vary significantly. The weight of intestine varied significantly (P < 0.01) in G3 (178.75 ± 8.36), G6 (177.63 ± 4.45), G4 (175 ± 7.84), G5 (173.13 ± 4.83) than G2 (158.63 ± 5.01) and G1(141.88 ± 6.37). The histo morphometric studies showed significant difference(P<0.01) between treatments in the villus height and crypt depth of duodenum, jejunum, ileum and caecum, the highest was in G4. The pH of ileum and caecum were similar between the treatment groups. The profit per kg live weight of bird was highest in G4 (Rs. 8.41) than G3 (Rs. -1.22), G1 (Rs. -3.63), G6 (Rs. -10.30), G5 (Rs. -14.71) and G2 (Rs. -16.59) respectively.The dietary supplementation of steam treated banana inflorescence showed, increase in histo-morphometric measurements of gut, improved the digestibility of nutrients, improved the carcass weight and yield, weight, giblet weight, thigh and breast muscle weight over the control and lactobacillus supplemented groups and the combinations. Therefore, from the study it can be concluded that the dried and steam treated banana inflorescence can be used profitably as a feed additive in broiler ration.