Dept. of Animal Nutrition, Genetics & Breeding
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Item SYNERGISTIC EFFECT OF DIETARY LIVE YEAST AND OLIGOSACCHARIDE ON GROWTH PERFORMANCE OF BROILER CHICKEN(DEPARTMENT OF ANIMAL NUTRITION, GENETICS AND BREEDING, SHER-E-BANGLA AGRICULTURAL UNIVERSITY, DHAKA -1207, 2019-12) AKHTER, SHARMINThis study was conducted to evaluate the effect of feeding graded levels of live yeast (Saccharomyces cerevisiae) and oligosaccharide on broiler performance. One-day old of Cobb-500 broiler chicks (n=150) were randomly allocated into five treatments. Each dietary treatment consisted of 3 replicates having 10 broilers in each of the replication. The dietary treatment contained no live yeast and oligosaccharide considered as control (T 0 ) and the other four treatments were T (2g yeast and 0.5g oligosaccharide/kg feed), T 1 (1g yeast and 0.5g oligosaccharide/kg feed), T (1g yeast and 1g oligosaccharide/kg feed) and T 4 3 (2g yeast and 1g oligosaccharide/kg feed). During the experimental periods of 4 weeks, feed intake, body weight gain, feed conversion ratio (FCR), survivability, flock uniformity values were calculated. Growth performance parameters were significantly (P<0.05) affected by experimental diets. Birds fed 1g yeast and 1g oligosaccharide/kg feed gained superior body weights (1765.90±4.89g) compared to control (l469.43±18.29g), and other dietary treatment. The mean body weight gains (g) at the 1 , 2 nd , 3 rd and 4 th week of different treatment groups were significantly higher (P<0.05) than control group. The feed intake of T (1g yeast and 1g oligosaccharide/kg feed) group was lower (2307.30±3.66g) compared to control (2421.07±25.99g). The groups fed diets containing 1g yeast and 1g oligosaccharide had lower FCR (1.33±0.00) compared to control (1.69±0.03). The inclusion of different dietary treatments had no significant (P>0.05) effects on survivability and flock uniformity. It is concluded that live yeast and oligosaccharide can be included in broiler diet at the rate of 1g yeast and 1g oligosaccharide/kg feed for better performance and higher economical return. 3 st 2Item THE EFFECTS OF LIGHT-EMITTING DIODE (LED) LIGHT WITH DEFFERENT COLOR ON THE GROWTH PERFORMANCE OF BROILER CHICKEN(DEPARTMENT OF ANIMAL NUTRITION, GENETICS AND BREEDING, SHER-E-BANGLA AGRICULTURAL UNIVERSITY, DHAKA -1207, 2019-12) BISWAS, TRINAArtificial lighting is one of the most powerful management tools available to commercial broiler producers. The study was carried out by a total of 150 day-old Cobb 500 broiler chicks were reared in Sher-e-Bangla Agricultural University Poultry Farm, Dhaka. This study aimed at comparing the performance of commercial broiler submitted to lighting using different LED colors or conventional incandescent lamps. This study maintain standard lighting program and were fed balance diet. The overall growth performance of broiler in red LED, green LED and 40W incandescent light were almost same. Body weight was comparatively better (P<0.01) among studies green light sources. Feed conversion ratio (FCR) and feed consumption was almost similar in red LED, green LED and 40W incandescent light. Uniformity (%) was significantly different (P<0.01) among studies, with the best results obtained with red LED light sources. It was concluded that the replacement of incandescent light bulbs by red and green LEDs does not cause any negative effect on the growth performance of commercial broiler. Therefore, switching to red and green LEDs may be can result in overall increased revenue for farmer because of the lower energy costs.