Impact of Supplemental Feed Enzymes, Condiments Mixture or Their Combination on Broiler Performance, Nutrients Digestibility and Plasma Constituents

Abstract: An experiment was conducted to study the effect of adding three types of feed additives avizyme, phytase, a mixture of condiments at two levels or their combination to corn-soybean meal based diets. Dietary treatments included feeding a control corn-soybean diet, while in the other diets, the control diet was supplemented with 1g. avizyme / kg diet, 1000 FTU Natuophos phytase / kg diet and a mixture (1:1:1:1) of cardamom, cumin, hot and black pepper at 2 or 4 g/kg, or a combination of avizyme and phytase, Avizyme and mixture of condiments at 2 or 4 g/kg and combination of phytase and condiments mixture at 2 and 4 g/kg and combination of Avizyme, phytase and 2 or 4 g of condiments mixture / kg diet. Diets were iso-caloric and iso-nitrogenous. A number of 540 unsexed 7-days old Lohman broiler chicks were fed on 12 dietary treatments each contained 5 replicates of 9 chicks each. The experimental period lasted from 7 to 49 d. of age. Growth performance, carcass characteristics, chemical composition of the excrement, digestibility of nutrients and biochemical constituents of blood plasma were studied. The results obtained showed that, diet supplementation with a combination of Avizyme, phytase and 2 g/kg of condiments significantly increased the gain of body weight during the first growth period (7-21 days of age). The average live body weight gain increased significantly on using phytase supplementation alone by 7.6 % compared to the un-supplemented control for the whole experimental period. Chicks fed diets supplemented with Avizym