Effect of probiotic and yeast supplementation on performance, egg quality characteristics and economics of production in Vanaraja layers
2011
Swain, B.K. | Naik, P.K. | Chakurkar, E.B. | Singh, N.P.
An experiment was conducted to study was conducted to evaluate the effect of dietary supplementation of Improval (mixture of probiotic, Lactobacillus sporogenes, 5X10⁷ cfu/g and yeast, Saccharomyces cerevisiae, 1.5X10⁸ cfu/g) on performance of Vanaraja laying chickens during a period of 14 weeks. 51 weeks old, 60 laying hens were randomly distributed into 5 equal groups (duplicated into 4 groups of 3 laying hens each) in wiremesh floored cages. Five experimental diets were formulated by supplementing 0, 0.5, 1.0, 1.5 and 2.0 g of probiotic and yeast (improval)/Kg diet to the control diet. Results indicated that supplementation of probiotics and yeast did not affect the egg production and feed conversion efficiency. Feed intake was decreased (P<0.05) due to addition probiotics and yeast @ 1.5 or 2.0 g/kg diet. The egg weight, shell thickness, shell per cent, albumen and yolk per cent increased (P<0.05) due to probiotic and yeast supplementation @ 1.5 or 2.0g/Kg diet. Highest net profit was recorded in laying hens fed probiotics and yeast @ 1.5g/Kg diet (23.3%) compared to that of control diet (18.8%). It is concluded that supplementation of probiotics and yeast @ 1.5–2.0 g/Kg diet in Vanaraja laying hens is beneficial in terms of better egg size, shape, stronger shell, increased albumen and more net profit.
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