Shams, M., Azadeghan Mehr, M., Dastar, B. and Hosseini, S. (2008) Effect of different levels of protein and probiotics on production traits and some blood parameters in broiler. Journal of Agricultural Science, 14.
 Liong, M.T. and Shah, N.P. (2006) Effects of lactobacillus symbiotic on serum lipoprotein, intestinal micro folora and organic acid in rats. Journal of Dairy Science, 89, 1390-1399. doi:10.3168/jds.S0022-0302(06)72207-X
 Sahin, T., Kaya, I., Unal, Y. and Email, D.A. (2008) Dietary supplementation of probiotics and prebiotics combination on performance, carcass quality and blood parameters in growing quaile. Journal of animal and veterinary, 7, 1370-1373.
 Dibaji, S.M., Seidavi, A. and Asadpour, L. (2012) Effect of dietary inclusion of the synbiotic biomin IMBO on broilers performance and some blood metabolites, research opinions. Animal Veterinary Science, 2, 10-13.
 Sharifi, M.R., Shams, M., Dastar, B. and Hosseini, S. (2011) The effect of dietary protein and symbiotic on performance parameters, blood characteristics and carcass yields of Japanese quail (coturnix coturnix japonica). Italian Journal of Animal Science, 10, 17-21.
 Awaad, W.A., Ghareeb, K., Abdel-Raheem, S. and Bohm, J. (2009) Effects of dietary inclusion of probiotic and synbiotic on growth performance, organ weights, and intestinal histomorphology of broiler chickens, Poultry Science, 88, 49-55. doi:10.3382/ps.2008-00244
 Chen, Y.C., Nakthong, C. and Chen, T.C. (2005) Improvement of laying hen performance by dietary prebiotic chicory oligofructose and inulin. International Journal of Poultry Science, 4, 103-108. doi:10.3923/ijps.2005.103.108
 Zarei, M., Ehsani, M. and Torki, M. (2011) Dietary inclusion of probiotics, prebiotics and synbiotic and evaluating performance of laying hens. American Journal of Agricultural Biological Sciences, 6, 249-255. doi:10.3844/ajabssp.2011.249.255
 Haddadin, M.S.Y., Abdolrahim, S.M., Hhashlamon, E.A.R. and Robinson, R.K. (1996) The effects of lectobacillus acidophilus on production and chemical composition of hens eggs. Poultry Science, 75, 491-494. doi:10.3382/ps.0750491