1- Abdelqader, A., A. Al-Fataftah, and G. Das. 2013. Effects of dietary Bacillus Subtilis and inulin supplementation on performance, egg shell quality, intestinal morphology and microflora composition of laying hens in the late phase of production. Animal Feed Science and Technology, 179: 103-111.
2- Chow, J. M. 2002. Probiotics and prebiotics: A brief overview. Journal of Renal Nutrition, 12(2): 76-86.
3- Cotter, P. F., A. Malzone., B. Paluch., M. S. Lilburn, and Sefton. 2000. Modulation of humoral immunity in commercial laying hens by a dietary prebiotic. Poultry Science, 79 : 38-45.
4- Delzenne, N. M., C. Daubioul., A. Neyrinck., M. Lasa, and H. S. Taper .2002. Inulin and oligofructose modulate lipid metabolism in animals: review of biochemical events and future prospects. British Journal of Nutrition, 87(2): 255-259.
5- Denli, M., F. Okan, and K. Celik. 2003. Effect of dietary probiotic, organic and antibiotic supplementation to diets on broiler performance and carcass yield. Pakistan Journal of Nutrition, 2(2): 89-91.
6- Duncan, D. B. 1955. Multiple rang and multiple F tests. Biometrics, 11: 1-20.
7- Gibson, G. R, and M. Roberfroid. 1995. Dietary modulation of the human colonie microbiota: introducing the concept of prebiotics. Journal of Nutrition, 125: 1401-1412.
8- Guo, F. C., H. F. J. Savelkoul., R. P. Kwakkel., B. A. Williams, and M. Verstegen. 2003. Immunoactive, medicinal properties of mushroom and herb polysaccharides and their potential use in chicken diets. World’s Poultry Science Journal, 59: 427-440.
9- Hooge, D. M. 2004. Meta-analysis of broiler chicken pen trials evaluating dietary mannan oligosaccharide. Poultry Science, 3: 74-163.
10- Jafari, B., A. Rezaie, and E. Habibi. 2011. Comparative effect of Chicory (Cichoriumintybus L.) and Nigella sativa extract with an antibiotic on different parameters of broiler chickens. Journal of Applied Environmental and Biological Sciences, 1: 525-528
11- Jahanian, R. 2009. Immunological responses as affected by dietary protein and arginine concentrations in starting broiler chicks. Poultry Science, 88: 1818-1824.
12- Jin, L. Z., Y. W. Ho., N. Abdullah, and S. Jalaludin. 1997. Probiotics in poultry: mode of action. Poultry Science, 55: 351-368
13- Juskiewicz, J., Z. Zdunczyk., E. Z. Sikorska., B. Krol., J. Milala., and A. Jurgonski. 2010. Effect of the dietary polyphenolic fraction of chicory root, peel, seed and leaf extracts on caecal fermentation and blood parameters in rats fed diets containing prebiotic fructans. British Journal of Nutrition, 24: 1-10.
14- Knap, I, and A. B. Kehlet. 2007. New Bacillus subtilis (GalliPro Max) significantly improves broiler production both in combination with antibiotic growth promoter (AGP) and without AGP. Poultry Science, 86: 196-197.
15- Lee, K. W., H. Everts, and A. C. Beyen. 2003. Dietary carvacrol lowers body gain but improves feed conversion in female broiler chickens. Journal of Applied Poultry Research, 12: 394-399.
16- Leshchinsky, T. V, and K. C. Klasing. 1999. Experimental factors that impact in vitro lymphocyte proliferation. Poultry Science, 78: 39-40.
17- Liu, H. Y. 2008. Influence of chicory feeding on performance and gut development in broilers. MSc Thesis. Swedish University of Agricultural Sciences, Sweden.
18- Lund, B., S. Hansen, and P. Kürti. 2005. Efficacy of Gallipro-A microbial feed additive for broilers. Pages 25–29 in Proc. 15th European Symposium Poultry Nutrition. World’s Poultry Science Association, Budapest, Hungary.
19- Mussatto, S. I, and I. M. Mancilha. 2007. Non digestible oligosaccharides: A review. Carbohydrate Polymers, 68: 587-597.
20- National Research Council. 1994. Nutrient Requirements of Poultry. 9th ed. National Academy of Sciences, Washington, DC.
21- Nodehi, H., H. Darmani-Kuhi., M. Roostaei Ali-mehr, and N. Miralami. 2013. Effects of dried inulin and chicory root on growth performance and intestinal microflora of broiler chickens. Animal Science (Agriculture Research Education and Extension Organization, Iran. (In Persian)
22- Peterson, A. L., M. A.Qureshi., P. R. Ferket, and J. C. J. Fuller. 1999. Enhancement of cellular and humeral immunity in young broilers by the dietary supplementation of β-hydroxy-β-methylbutyrate. Immunopharmacology and Immunotoxicology, 21(2): 307-330.
23- Rakoff-Nahoum, S., J. Paglino, F. Eslami-Varzaneh, S. Edberg, and R. Medzhitov.2004. Recognition of commensal microflora by toll-like receptors is required for intestinal homeostasis. Rescigno M. CCR6+ dendritic cells: The gut tactical-response unit. Immunity, 24: 508–510
24- Rehman, H., C. Rosenkranz, J. Böhm, and J. Zentek. 2007. Dietary inulin affects the morphology but not the sodium-dependent glucose and glutamine transport in the jejunum of broilers. Poultry Science, 86: 118-122.
25- Roberfroid, M. 2007. Prebiotics: The concept revisited. Journal of Nutrition, 137: 830-837.
26- Ross, E. 2000. Intestinal absorption of triglyceride and cholesterol dietary and pharmacological inhibition to reduce cardiovascular risk. Atherosclerosis, 51: 357-379.
27- Santoso, U., K. Tanaka, and M. Ohtanis. 1995. Effect of dried bacillus subtilis culture on growth, body composition and hepatic lipogenic enzyme activity in female broiler chicks. British Journal of Nutrition, 74: 523-527.
28- SAS Institute. 2007. SAS User’s Guide. Version 9.1 ed. SAS Inst. Inc., Cary, NC.
29- Savage, T. F., P. F. Cotter, and E. I. Zakrewska. 1996. Effect of feeding a mannan oligosaccharide on immunoglobulins, plasma IgG and bile IgA of Wrolstad MW male turkeys. Poultry Science, 75: 143-148.
30- Spring, P., C. Weng., K. A. Dawson, and K. E. Newman. 2000. The effects of dietary mannoligosaccharide on caecal parameters and the samonella-challenged broiler chicks. Poultry Science, 79: 205-211.
31- Velasco, S., L. T. Ortiz., C. Alzueta., A. Rebole., J. Trevino, and M. L. Rodriguez. 2010. Effect of inulin supplementa- tion and dietary fat source on performance, blood serum metabolites, liver lipids, abdominal fat deposition, and tissue fatty acid composition in broiler chickens. Poultry Science, 89: 1651-1662.
32- Watzl, B., S. Girrbach, and M. Roller. 2005. Inulin, oligofructose and immunomodulation. British Journal of Nutrition, 93: 49-55
33- Xu, Z., C. Hu., M. Xia., X. Zhan, and Wang, M. 2003. Effects of dietary fructooligosaccharide on digestive enzyme activities, intestinal microflora and morphology of male broilers. Poultry Science, 82: 1030-1036.
34- Yusrizal, Y, and T. Chen. 2003. Effect of adding chicory fructans in feed on broiler growth performance, serum cholesterol and intestinal length. Poultry Science, 2: 214-219.
35- Zentek. J., B. Marquart., T. Pietrzak., O. Ballevre, and F. Rochat. 2003. Dietary effects on bifidobacteria and Clostridium perfringens in the canine intestinal tract. Journal of Animal Physiology and Animal Nutrition, 87: 397-407.