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20162
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Subject: Animal Nutrition × End date: 2016 × Start date: 2010 ×
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    ThesisItemOpen Access
    Effect of graded levels of dietary incorporation of ginger (Zingiber officinale) powder as feed additive on growth, nutrient utilization, carcass characteristics and haemato-biochemical constituents in commercial broiler chickens
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-07) Mangal, Girish; Tiwari, D.P.
    A feeding trial was conducted to discern the effect of dietary incorporation of ginger rhizome powder on growth performance, nutrient utilization, carcass traits and haemato-biochemical parameters in commercial broiler chickens. A total of 150, day-old broiler chicks were divided randomly into 5 treatment groups with 3 replicates each i.e. 10 broiler chicks per replicate. Chicks of treatment T1 (control) were fed basal diet (starter and finisher diet), whereas in treatment groups T2, T3, T4 and T5, basal diet was incorporated with 0.50, 0.75, 1.00 and 1.25 % ginger rhizome powder, respectively, as feed additive. The feeding trial lasted for 42 days viz., 0-21 days (starter phase) and 21-42 days (finisher phase). A metabolism trial was conducted during the 6th week of feeding trial. Blood samples were collected on 42nd day of feeding trial to study haemato-biochemical parameters. During the starter phase (0-21 days), maximum weight gain was recorded in broiler chicks of treatment group T5 (518.48 g) fed diet incorporated with 1.25 % ginger rhizome powder and significantly higher than T1 (395.33 g) followed by treatment groups T4 (543.33 g), T3 (540.24 g) and T2 (493.48 g). During 21- 42 days (finisher phase), the average body weight gain was 956.72, 981.59, 912.13, 987.67 and 983.63 g in broiler chicks of treatment groups T1, T2, T3, T4 and T5, respectively and did not differ significantly among different groups. Feed intake, feed conversion ratio, performance index and protein efficiency ratio were not significantly different in broiler chicks of various treatment groups. During entire feeding trial period (0-42 days), incorporation of ginger rhizome powder in the basal diets improved growth performance in terms of body weight gain, feed conversion ratio, performance index and protein efficiency ratio. The average cumulative body weight gain was 1352.06, 1433.60, 1410.64, 1487.80 and 1502.11 g in broiler chicks of treatment groups T1, T2, T3, T4 and T5, respectively and differed significantly (P<0.05) among different groups. There was significantly (P<0.05) higher weight gain in chicks fed diets incorporated with ginger rhizome powder than chicks of control group. There was no significant difference in feed intake and nutrient utilization among different treatment groups of broiler chickens; however, there was improvement in nutrient utilization due to ginger rhizome powder incorporation in the diet. A non-significantly decrease in abdominal fat was observed in broilers fed diets incorporated with ginger rhizome powder. The various carcass traits in broilers were not affected due to feeding of ginger rhizome powder. There was significant (P<0.05) differences in protein and ether extract content of thigh muscles, whereas these were statistically similar in breast muscles. There was significant increase in protein content and decrease in ether extract contents of thigh muscles. No significant difference was observed in haematological parameters in broiler chicks of different treatment groups. There was significant (P<0.05) reduction in serum cholesterol recorded in broiler chicks of treatment groups T5 (133.76 mg/dl) and T4 (133.46 mg/dl). Whereas, there was no significant difference in serum triglycerides, serum total protein, albumin, globulin and glucose concentrations and Serum ALP, SGPT and SGOT activities among the different treatment groups, however, there was also considerable reduction in serum triglycerides content in broiler chicks fed diet containing ginger rhizome powder. It is concluded that inclusion of 1.00 % ginger rhizome powder in the diet of broiler chicks improved growth performance, nutrient utilization and reduced serum cholesterol and triglycerides which in turn is beneficial in producing the designer meat in broiler chickens.
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    ThesisItemOpen Access
    Effect of dietary black cumin (Nigella sativa), garlic (Allium sativum) and turmeric (Curcuma longa) vis-a-vis antibiotic as feed additive on performance of broiler and laying chickens
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-06) Singh, Pankaj Kumar; Anil Kumar