1.Abudabos, A.M., Borges, C.A. Fritts and Waldroup, P.W. 2012. Effect of enzyme supplementation to normal and low density broiler diets based on corn-soybean meal.Asi. J. Anim. Vet. Adv., 7: 139-148.

2.Annongu El-Katcha I., Mosaad A. Soltan, Hany F. El-Kaney and El-Sayed Karwarie, R. 1997. Growth performance, blood parameters, immune response and carcass traits of broiler chicks fed on graded levels of wheat instead of corn without or with enzyme supplementation. Alexandria J. Vet. Sci., 40: 95-111.

3.Awad, A.R., J.L. Sell and Zimmerman, D.R. 2014. Effect of lowprotein diets on growth performance and body composition of broiler chicks. Poult. Sci., 81: 1156-1167.

4.Bureau of Indian Standards. 2007. Indian Standard, Poultry Feed Specifications (5th version, IS: 1374, 2007) 3-6.

5.Cho, J.H., P.Y. Zhao and Kim, I.H. 2012. Effects of emulsifier and multienzyme in different energy density diet on growth performance, blood profiles, and relative organ weight in broiler chickens. J. Agri. Sci., 4: 187-194.

6.Cowieson and Ravindran. 2008. Recent advances in research on enzymes for poultry diets. Poult. Sci., 90: 2013–2023.

7.Dozier, L.R.B., Sakomura, N.K., Barbosa, N.A.A., Bonato, M.A., Kawuauchi, I.M., Fernandes, J.B.K. and Costa, F.G.P. 2007. Corn and soybean meal metabolizable energy with the addition of exogenous enzymes for poultry. Brazilian J. Poult. Sci., 11: 51-55.

8.Duccan Multiple Range Test. 1995. Biometrics, 11: 1-42.

9.Garcia, M.I., Latorre, M.A., García, M., Lázaro, R. and Mateos, G.G. 2000. Heat processing of barley and enzyme supplementation of diets for broilers. Poult. Sci., 77: 90-93.

10.Hernandez, F., Lopez, M., Martinez, S., Megias, M.D., Catala, P. and Madrid, J. 2012. Effect of low-protein diets and single sex on production performance, plasma metabolites, digestibility, and nitrogen excretion in 1- to 48-day-old broilers. J. Poult. Sci., 91: 683–692.

11.Kidd, M.T., Morgan, G.W. and Price, C.J. 2001. Enzyme supplementation to corn and soybean meal diets for broilers. J. Poult. Res., 10: 65–70.

12.Malmo, G.A., Bolu, S.A., Olutade, S.G. and Suleiman, Z.G. 2013. Effects of feeding low protein diets with methionine and lysine supplementation on the performance and nitrogen economy of broilers. Res. Opin. Anim. Vet. Sci., 3: 330-334.

13.Panda, A.K., Lavanya, G. Reddy, E.P.K. Rao and Raju, M.V.L.N. 2012. Effect of dietary Supplementation of enzymes on performance of broiler chickens in maize-soybean meal based diet. Ani. Nut. Feed Tech., 12: 297-303.

14.Raju, M.V.L.N., Sodagopan, V.R., Sundar, G.S. and Rao, S.V.R. 1999. Performance of broiler fed low dietary protein levels with or without supplementation of lysine and methionine. Ind. J. Anim. Nut., 16(3): 194-198.

15.SPSS. 2009. Statistical Package for the Social Sciences Version, 17.

16.Summers, S.J., Leeson, D. and Diane Spratt. 1988. Yield and composition of edible meat from male broilers as influenced by dietary protein level and amino acid supplementation. Can. J. Anim. Sci., 68: 241-248.

17.Ting, K.C. and Bolloun, S.L. 1972. Effect of protein level and methionine supplementation on several metabolic responses in turkey. Poult. J. Nut., 102: 681-688.

18.Youssef, A.W., Hassan, H.M.A., Ali, H.M. and Mohamed, M.A. 2011. Performance, Abdominal fat and Economic efficiency of Broilers fed different energy levels supplemented with xylanase and amylase from 14 to 40 days of age. World J. Agri. Sci., 7(3): 291-297.

19.Yuan, J., Yao, J., Yang, F., Yang, X., Wan, X., Han, J., Wang, Y., Chen, X., Liu, Y., Zhou, Z., Zhou, N. and Feng, X. 2008. Effects of supplementing different levels of a commercial enzyme complex on performance, nutrient availability, enzyme activity and gut morphology of broilers. Asi-Aus J. Anim. Sci., 21(5): 692-700.

20.Zakaria, H.A.H., Mohammad, A.R. Jalal and Majdi Abu Ishmais, A. 2010. The influence of supplemental multi-enzyme feed additive on the performance, carcass characteristics and meat quality traits of broiler chickens. Int. J. Poult. Sci., 9(2): 126- 133.