- Abdel-Fattah, S.A., El-Sanhoury, M.H., El-Mednay, N.M. and Abdel-Azeem, F., 2008. Thyroid activity, some blood constituents, organs morphology and performance of broiler chicks fed supplemental organic acids. International Journal of Poultry Science, 7(3): 215-222.
- Acamovic, T. and Brooker, J.D., 2005. Biochemistry of plant metabolites and their effects in animals. Proceedings of the Nutrition Society, 64(3): 403-412.
- Alcicek, A., Zkurt, M. and Cabuk, M., 2003. The effect of an essential oil combination derived from selected herbs growing wild in turkey on broiler performance. South Africa Journal of Animal Science, 33(2): 89-94.
- Al-Himdany, H.Q., Abbas, F.R. and Allaw, A.A., 2019. Effect of adding medicinal plant extracts to the broiler diets on productive performance. Indian Journal of Public Health Research & Development, 10(9): 682-686.
- Awad, W.A., Bohm, J., Razzazi-Fazeli, E., Ghareeb, K. and Zentek, J., 2006. Effect of addition of a probiotic microorganism to broiler diets contaminated with deoxynivalenol on performance and histological alterations of intestinal villi of broiler chickens. Poultry Science, 85(6): 974-979.
- AOAC, 1995. Official Methods of Analysis, 16th ed. Association of Official Analytical Chemists, Arlington, VA.
- Baurhoo, B., Letellier, A., Zhao, X. and Ruiz-Feria, C.A., 2007. Cecal populations of lactobacilli and bifidobacteria and Escherichia coli populations after in vivo Escherichia coli challenge in birds fed diets with purified lignin or mannanoligosaccharides. Poultry Science, 86(12): 2509-2516.
- Boling, S.D., Snow, J.L., Parsons, C.M. and Baker, D.H., 2001. The effect of citric acid on calcium and phosphorus requirements of chicks fed corn-soybean meal diets. Poultry Science, 80(6): 783-788.
- Boothe, D.M., 2012. Tetracyclines: The Merck Veterinary Manual. Whitehouse Station, Merck Company: 820-831.
- Boroumandnia, Z., Mohammadzadeh, S., Azizi, M. and Khaledari, M., 2014. The effect of adding Artichoke extract to drinking water on performance, carcass characteristics and blood lipoprotein concentration in broiler chickens. Journal of Experimental Animal Biology, 3(3): 71-79.
- Cabuk, M., Bozkurt, M., Alcicek, A., Akbas, Y. and Kucuyilmaz, K., 2006. Effect of herbal essential oil mixture on growth and internal organ weight of broilers from young and old breeder flocks. South African Journal of Animal Science, 36: 135-141.
- Ciftci, M., Simsek, U.G., Yuce, A., Yilmaz, O. and Dalkilic, B., 2010. Effects of dietary antibiotic and Cinnamon oil supplementation on antioxidant enzyme activities, cholesterol levels and fatty acid compositions of serum and meat in broiler chickens. Acta Veterinaria Brno, 79: 33-40.
- Daneshyar, M., Kermanshahi, H. and Golian, A., 2012. The effects of turmeric supplementation on antioxidant status, blood gas indices and mortality in broiler chickens with T3-induced ascites. British Poultry Science, 53(3): 379-385.
- Denli, M., Okan, F. and Uluocak, A.N., 2004. Effect of dietary supplementation of herb essential oils on the growth performance, carcass and intestinal characteristics of quail (Coturnix coturnixjaponica). South African Journal of Animal Science, 34(3): 241-250.
- Dorman, H.J.D. and Deans, S.G., 2000. Antimicrobial agents from plants: antibacterial activity of plant volatile oils. Journal of Applied Microbiology, 88: 308-316.
- Duke, J.A. and Duke, C.J., 1986. Handbook of Medicinal Herbs. CRC press, Florida, 677p.
- Duwa, H., Kwari, I.D., Saleh, B. and Amaza, B., 2013. The influence of oxytetracycline and vita-stress supplement on the productive performance of broiler chickens in the semi-arid zone of Nigeria. Juornal of Agriculture and Veterinary Sceince, 2(6): 40-44.
- Ganjeh, M.R. and Salar Moeini, M., 2016. Effect of powder and hydroalcoholic extract of Origanum vulgare and virginiamycin on performance, blood metabolites, ileal microflora, jejunal morphology and meat quality of Broilers. Iranian Journal of Animal Science Research, 8(1): 121-108.
- Garcia, V., Catala-Gregori, P., Hernandez, F., Megias, M.D. and Madrid, J., 2007. Effect of formic acid and plant extracts on growth, nutrient digestibility, intestine mucosa morphology and meat yield of broilers. Journal of Applied Poultry Research, 16: 555-562.
- Goldin, B.R., 1998. Health benefits of probiotics. British Journal of Nutrition, 80: 203-207.
- Grashorn, M.A., 2010. Use of phytobiotics in broiler nutrition an alternative to infeed antibiotics?. Journal of Animal and Feed Science, 19: 338-347.
- Hatami., A., 2013. The Effect of Peppermint and Basil Herbs in the Diet on Growth Performance, Nutrient Digestibility, Some Blood Parameters and Immune System of Broilers. Master Thesis in Animal Nutrition, Mohaghegh Ardabili University.
- Hernandez, F., Madrid, J., Garcia, V., Orengo, J. and Megias, M.D., 2004. Influence of two plant extracts on broiler performance, digestibility and digestive organ size. Poultry Science, 83(2): 169-174.
- Horn, N.L., Donkin, S.S., Applegate, T.J. and Adeola, O., 2009. Intestinal mucin dynamics: response of broiler chicks and White Pekin ducklings to dietary threonine. Poultry Science, 88: 1906-1914.
- Jamali, M.R., Ghorbani, M.R., Tatar, A., Salari, S. and Chaji, M., 2016. Effects of different levels of purslane powder on microbial populations, blood biochemical parameters and tibia bone characteristics of laying hens. Iranian Journal of Veterinary Medicine, 12(4): 31-42.
- Kirkpinar, F., Bora Ünlü, H., Özdemir, G. and Baaliouamer, A., 2011. Effects of oregano and garlic essential oils on performance, carcase, organ and blood characteristics and intestinal microflora of broilers. Livestock Science, 137: 219-225.
- Kocabagli, N., 2001. The effect of dietary phytase supplementation at different levels on tibial bone characteristics and strength in broilers. Turkish Journal Veterinary Animanl Science, 25: 797-802.
- Koutsos, E. and Arias, V., 2006. Intestinal ecology: interactions among the gastrointestinal tract, nutrition, and the microflora. The Journal of Applied Poultry Research, 15(1): 161-173.
- Lee, K.W., Everts, H. and Beyen, A.C., 2003. Dietary carvacrol lowers body gain but improves feed conversion infemale broiler chickens. Journal of Applied Poultry research, 12: 394-399.
- Lee, K.W., Everts, H., Kappert, H.J., Wouterse, H., Frehner, M. and Beynen, A.C., 2004. Cinnamanaldehyde, but not thymol, counteracts the carboxymethyl cellulose-induced growth depression in female broiler chickens. International Journal of Poultry Science, 3: 608-612.
- Liopis, M., Antolin, M., Guarner, F., Salas, A. and Malagelada, J.R., 2005. Mucosal colonisation with Lactobacillus casei mitigates barrier injury induced by exposure to trinitronbenzene sulphonic acid. Gut, 54: 955-959.
- Mehdikhani, M., 2015. The Effect of Using the Commercial Combination of Medicinal Plant Extracts and Thyme and Mint Plant Extracts as an Alternative to Growth-Promoting Antibiotics on The Performance of Male Ross Broilers. Master Thesis in Poultry Nutrition, Urmia University.
- Orban, J.I., Adeola, O. and Stroshine, R., 1999. Microbial phytase in finisher diets of White Pekin ducks: effect on growth performance, plasma phosphorus concentration and leg bone characteristics. Journal of Poultry Science, 78: 366-377.
- Pirmohammadi, A., Daneshyar, M. and Farmoumand, P., 2015. Effect of Thymus vulgaris and Mentha pulegium powders on performance, carcass characteristics and some blood parameters of broilers under heat stress condition. Iranian Journal of Veterinary Medicine, 11(2): 12-25.
- Ponte, P., Rosado, C., Crespo, J.P., Crespo, D.J., Moura˜o, J.L., Chaveiro-Soares, M.A., Bra´s, J.L.A., Mendes, I., Gama, L.T., Prates, J.A.M., Ferreira, L.A.M. and Fontes, M.G.A., 2008. Pasture intake improve the performance and meat sensory attributes of free- range in broilers. Poultry Science, 87: 71-79.
- Rath, N.C., Balog, J.M., Huff, W.E., Huff, G.R., Kulkarni, G.B. and Tierce, J.F., 1999. Comparative difference in the composition and biomechanical properties of tibiae of seven-and seventy-two-week-old male and female broiler breeder chickens. Journal of Poultry Science, 78(8): 1232-1239.
- Rezaei, M., Karimi Tarshizi, M.A. and Roozbehan, Y., 2011. Effect of dietary fiber on intestinal morphology and performance of broiler chickens. Journal of Animal Science (Pajouhesh & Sazandegi), 90: 52-60.
- SAS Institute, 2003. SAS Users guide: Statistics. Version 9.1. SAS Institute Inc., Cary, NC.
- Sell, J.L., Angel, C.R., Piquer, F.J., Mallarino, E.G. and Batshan, H.A., 1991. Development patterns of selected characteristics of the gastrointestinal tract of young turkey. Poultry Science, 70(5): 1200-1205.
- Shalaei, M. and Hosseini, S.M., 2017. Effect of feed additives on small intestinal morphology, mineralization and strength of tibia bone of broilers and laying hens. Iranian Journal of Veterinary Medicine, 12(4): 52-63.
- Shirzadegan, K. and Rezaeipour, V., 2016. The impacts of different levels of cinnamon powder (Cinnamomum veru) on performance, blood metabolites and inner organs weight of broilers. Livestock Production Research, 7(13): 16-23.
- Soltan, M.A., 2008. Effect of dietary organic acid supplementation on egg production, egg quality and some blood serum parameters in laying hens. International Journal of Poultry Science, 7(6): 613-621.
- Toghyani, M., Toghyani, M., Zamanizad, M. and Shahryar, H.A., 2011. Assessment of performance, immune responses, serum metabolites and prevalence of leg weakness in broiler chicks submitted to early age water restriction. Tropical Animal Health and Production, 43: 1183-1189.
- Viveros, A., Brenes, A., Arija, I. and Centeno, C., 2002. Effects of microbial phytase supplementation on mineral utilization and serum enzyme activities in broiler chicks fed different levels of phosphorus. Poultry Science, 81: 1172-1183.
- Viveros, A., Chamorro, S., Pizarro, M., Arija, I., Centeno, C. and Brenes, A., 2011. Effects of dietary polyphenol-rich grape products on intestinal microflora and gut morphology in broiler chicks. Poultry Science, 90: 566-578.
- Wenk, C., 2006. Are herbs, botanicals and other related substances adequate replacements for antimicrobial growth promoters?: 329-340. In: Barug, D., de Jong, J., Kies, A.K. and Verstegen, M.W.A., (Eds). Antimicrobial Growth Promoters. Wageningen Academic Publishers, The Netherlands, 422p.
- Yasar, S. and Forbes, J.M., 1999. Performance and gastro-intestinal response of broiler chickens fed on cereal grain-based foods soaked in water. British Poultry Science, 40: 65-76.
- Zhang, B. and Coon, C.N., 1997. The relationship of calcium intake, source, size, solubility in vitro and in vivo, and gizzard limestone retention in laying hens. Poultry Science, 76(12): 1702-1706.
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