Effect of feeding dried neem (Azadirachta indica) and kadipatta (Murraya koenigii) leaf powder on growth performance, nutrient utilization, carcass traits and haemato-biochemical parameters in broiler chicken
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Date
2015-07
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
A feeding trial was conducted to discern the effect of dietary incorporation of neem and kadipatta leaf powder on growth performance, nutrient utilization, carcass traits and haemato- biochemical parameters in commercial broilers. A total of 120, day-old broiler chicks were divided randomly into 6 treatment groups with 2 replicates each i.e. 10 broiler chicks per replicate. Chicks of treatment T1 (control) were fed basal diet whereas in treatment group T2, T3, T4, T5 and T6, basal diet was supplemented with leaf powder as 0.2% neem, 0.2% kadipatta, 0.1% kadipatta plus 0.3% neem, 0.3% kadipatta plus 0.1% neem and 0.2% kadipatta plus 0.2% neem, respectively. The feeding trial lasted for 42 days viz., 0-21 days (starter phase) and 22-42 days (finisher phase). Feed intake and body weight changes in broiler chicks were recorded at weakly intervals and a metabolism trial of 4 days collection period was conducted during the 6th week of feeding trial. Meat quality analysis viz, cut up parts, dressing percentage, organ weight, processing losses and chemical composition was determined at 6th week of feeding trials. Blood haemato-biochemical analysis as well as shear force values were performed at the end of experiment. During the starter phase, the body weight gain of broiler chicks of treatment group T6 (708.64 g) was significantly (P<0.05) higher than other treatment groups T1 (690.27 g), T2 (694.99 g) T3 (684.28 g), T4 (665.29 g) and T5 (670.15). During 22- 42 days (finisher phase), the body weight gain of broiler chicks of treatment group T6 (1500.46 g) was significantly (P<0.05) higher than other treatment groups T1 (1286.63 g), T2 (1439.11 g) T3 (1335.53 g), T4 (1316.81 g) and T5 (1418.05 g). FCR and Performance index were improved in broiler chicks of treatment groups T6. During whole experimental period (0-42 days), supplementation of 0.2% kadipatta plus 0.2% neem leaf powder improved broiler performance in terms of feed intake, body weight gain, FCR and performance index. Final body weight was recorded highest in T6 (2209.10 g) followed by T2 (2134.10 g), T5 (2088.20 g), T3 (2019.61), T4 (1982.10) and lowest in T1 (1976.90 g). Nutrient utilization in terms of dry matter, crude protein, crude fat and crude fiber was significantly (P<0.05) improved in broilers fed diet supplemented with 0.2% kadipatta plus 0.2% neem leaf powder (T6). Composition of breast and thigh muscles showed significant (P<0.05) difference in supplemented group as compared to control. Significant (P<0.05) difference were observed in Hb, PCV and TEC in broilers of supplemented groups. Significant (P<0.05) reduction in serum cholesterol and glucose were recorded in broilers of treatment groups, whereas, there was no significant difference in albumin, globulin. Significant (P<0.05) increase in serum total protein were recorded in broilers of treatment groups. Serum enzymes activity viz.,SGPT and SGOT showed significant difference (P<0.05) among the broilers of different treatments as compared to control. It is concluded that 0.2 % kadipatta plus 0.2% neem leaf powder in the diet of broilers improved growth performance, nutrient utilization, increase Hb, PCV, TEC or total serum protein and reduced serum cholesterol, serum glucose or serum enzymes which in turn is beneficial and can be recommended for improving performance of broiler chicken.
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