SYNERGISTIC EFFECT OF DIETARY LIVE YEAST AND OLIGOSACCHARIDE ON GROWTH PERFORMANCE OF BROILER CHICKEN

Abstract

This 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.

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