Abascal, K.B.S., Herbalist, J.D., Yarnell, E.N.D.R.H. (2003) The many faces of silybum marianum (Milk thistle). J Altern Complement Therap. 9: 170-175.
Ahvazi, M., Rezvani Aghdam, A., Habibi Khaniani, B. (2010) Medicinal plants seeds (morphology, physiology and medicinal properties). University of Jahad Unit Tehran. Tehran, Iran.
Alirezalu, K., Hesari, J., Alirezalu, A. Mohammadi, M., Fathi-Achachlouei, V. (2011) Evaluation of physicochemical properties and fatty acid composition of milk thistle seed oil. J Food Res. (Agric. Sci.). 21: 25-33.
Baah, J., Ivan, M., Hristov, A.N., Koenig, K.M., Rode, L.M., McAllister, T.A. (2007) Effects of potential dietary anti-protozoal supplements on rumen fermentation and digestibility in heifers. Anim Feed Sci Technol. 137: 126–137.
Bahatia, S.K., Kumar, S., Sangwan, D.C. (2004) Advances in Buffalo-Cattle Nutrition and Rumen Ecosystem. International Book Distributing Co. New Delhi, India.
Bhat, T.K., Singh, B., Sharma, P.O. (1998) Microbial degradation of tannins- a current perspective. Biodegradation. 9: 343-357.
Bodas, R., Fernández, M., García-González, R., González, J.S., López, S., Wallace, R.J. (2009) Phytogenic additives to decrease in vitro ruminal methanogenesis. Options Méditerranéennes. 85: 279- 283.
Boggs, D.L., Bergen, W.G., Hawkins D.R. (1987) Effects of tallow supplementation and protein withdrawal on ruminal fermentation, microbial synthesis and site of digestion. J Anim Sci. 64: 970.
Bohm, H., Boeing, H., Hempel, J., Raab, B., Kroke, A. (1998) Flavone and anthocyanins as natural antioxidants of food and their possible role in the prevention of chronic diseases. Z-Ernahrunqswiss. 37: 147-63.
Broudiscou, L.P., Papon, Y., Broudiscou, A.F. (2000) Effects of dry plant extracts on fermentation and methanogenesis in continuous culture of rumen microbes. Anim Feed Sci Technol. 87: 263-277.
Crowley, J.W. (1985) Effects of Nitrate on Livestock. Am Soc Agric Eng. 80: 20026.
Davies, D.R., Theodorou, M.K., Lawrence, M.I., Trinci, A.P.J. (1993) Distribution of anaerobic fungi in the digestive tract of cattle and their survival in faeces. J Gen Microbiol. 139: 1395-1400.
Ebdali Mashhadi, A.R., Fathi, Gh.E. (2002) Effects of different levels of density on yield and oil grain of medical plant silybum marianum in Ahwaz conditions. Pajouhesh-va-Sazandegi, (In Persian). Natur Resour. 54: 28-33.
Foley, A.E., Hristov, A.N., Melgar, A., Ropp, J.K., Etter, R.P., Zaman, S., Hunt, C.,W., Huber, K., Price, W.J. (2006) Effect of Barley and Its Amylopectin Content on Ruminal Fermentation and Nitrogen Utilization in Lactating Dairy Cows. J Dairy Sci. 89:4321-4335.
Fonvik, B., Vink, M. (2008) Most Important Medicinal Plants of The world. Translators: Sfaii Khoram, Mehdi. Jafarnia, Sasan. Khosroshahi, Sara. Mashhad, Iran.
France, J., Theodorou, M.K., Davies, D. (1990) The use of zoospore concentrations and life cycle parameters in determining the population of anaerobic fungi in the rumen ecosystem. J Theor Biol. 147: 413-422.
Garcia-Gonzalez, R., Lopez, S., Fernandez, M., Gonzalez, J.S. (2008) Dose response effects of Rhem officinale root and Frangula alnus bark on ruminal methane production in vitro. Anim Feed Sci Technol. 145: 319- 334.
Ghahraman, A. (1983) colorful flora of Iran. Research Institute of Forests and Rangelands. 9: 1095.
Goli, S.A.H., Kadivar, M., Bahrami, B., Sabzalian, M.R. (2008) Physical and chemical characteristics of Silybum marianum seed oil. J Food Sci Technol. 4: 27-32.
Harvatine, J., Allen, S. (2006) Fat supplements affect fractional rates of ruminal fatty acid biohydrogenation and passage in dairy cows. J Nutr. 136: 677.
Hess, H.D., Monsalve, L.M., Lascano, C.E., Carulla, J.E., Diaz, T.E., Kreuzer, M. (2003) Supplementation of a tropical grass diet with forage legumes and Sapindus saponaria fruits: effects on in vitro ruminal nitrogen turnover and methanogenesis. Aust J Agric Res. 54: 703-713.
Ho, Y.W., Barr, D.J.S. (1995) Classification of anaerobic gut fungi from herbivores with emphasis on rumen fungi from Malaysia. J Mycologia. 87: 655–677.
Hristov, A.N., Kennington, L.R., McGuire, M.A., Hunt, C.W. (2005) Effect of diets containing linoleic acid- or oleic acid-rich oils on ruminal fermentation and nutrient digestibility, and performance and fatty acid composition of adipose and muscle tissues of finishing cattle. J Anim Sci. 83: 1312-1321.
Imiki, H., Tuncer, S.D., Aylanc, Y., Aytac, M. (2008) Determination of some digestibility of nutrients, rumen and blood metabolites of Akkaraman rams fed low-tannin sorghum and other conventional feeds. Ankara Üni. Vet Fak Derg. 55: 177-182.
Jenkins, T.C., Palmquist, D.L. (1984) Effect of fatty acids or calcium soaps on rumen and total nutrient digestibility of dairy rations. J Dairy Sci. 67: 978.
Kamra, D.N. (2005) Rumen microbial ecosystem. J Curr Sci. 89: 124-135.
Khazaal, K., Boza, J., Orskov, E.R. (1994) Assessment of phenolics-related anti nutritive effects in Mediterranean browse: a comparison between the use of the in vitro gas production technique with or without insoluble polyvinylpolpyrrolidone. Anim Feed Sci Technol. 49: 133-149.
Khejornsart, P., Wanapat, M., Rowlinson, P. (2011) Diversity of anaerobic fungi and rumen fermentation characteristic in swamp buffalo and beef cattle fed on different diets. Livet Sci. 139: 230–236.
Knott, S.G. (1971) Nitrite poisoning in livestock. Q Agric J. 97: 485 489.
Krause, D.O., Denman, S.E., Mackie, R.I., Morrison, M., Rae, A.L., Attwood, G.T., McSweency, C.S. (2003) Opportunities to improve fiber degradation in the rumen: microbiology, ecology and genomics. FEMS Microbiol Rev. 27: 663-693.
Kren, V., Walterova, D. (2005) Silybin and silymarin new effects and applications. Biomed Papers. 149: 29–41.
Maldar, M., Roozbehan, Y., Alipour, D. (2010) The Effect of adaptation to oak leaves on digestibility (in vitro) and ruminal parameters in alamout Goat. Iran J Anim Sci. 41: 193-297.
Martin, C.J., Rouel, J.P., Jouany, M., Doreau, A., Chilliard, Y. (2008) Methane output and diet digestibility in response to feeding dairy cows crude linseed, extruded linseed, or linseed oil. J Anim Sci. 86: 2642–2650.
McAllister, T.A., Rode, L.M., Major, D.J., Cheng, K.J., Buchanan-Smith, J.G. (1990) Effect of ruminal microbial colonization on cereal grain digestion. Can J Anim Sci. 70: 571.
McCarthy, R.D., Klusmeyer, T.H., Vicini, J.L., Clark, J.H., Nelson, D.R. (1989) Effects of source of protein and carbohydrate on ruminal fermentation and passage of nutrients to the small intestine of lactating cows. J Dairy Sci. 72: 2002.
McDougall, E.L. (1948) Studies on ruminant saliva. 1. The composition and output of sheep’s saliva. J Biochem. 43: 99-106.
Menk, K.H., Stingass, H. (1988) Estimation of the energetic feed value obtained from chemical analysis and in vitro gas production using rumen fluid. Anim Res Dev. 28: 6-55.
Menke, K.H., Raab, L., Salewski, H., Fritz, D., Schneider, W. (1979) The estimation of the digestibility and metabolizable energy content of ruminal feedstuffs from the gas production when they are incubated with rumen liquid in vitro. J Agric Sci. 93: 217-222.
Mohammadabadi, T., Danesh Mesgaran, M., Chaji, M., Tahmasebi, R. (2012) Evaluation of the effect of fat content of sunflower meal on rumen fungi growth and population by direct (quantitative competitive polymerase chain reaction) and indirect (dry matter and neutral detergent fiber disappearance) methods. Afr J Biotechnol. 11: 179-183.
Montgomery, S.P., Drouillard, J.S., Nagaraja, T.G., Titgemeyer, E.C., Sindt, J.J. (2008) Effects of supplemental fat source on nutrient digestion and ruminal fermentation in steers. J Anim Sci. 86: 640-650.
NRC. (1996) Nutrient Requirements of Beef Cattle. (7th ed.) National Academic Press. Washington DC, USA.
Omidbaigi, R. (2009) Production and Processing Medicinal Plants. Astan Quds Razavi. Mashhad, Iran.
Orpin, C.G. (1977) The rumen flagellate Piromonas communis: its life-history and invasion of plant material in the rumen. J Gen Microbiol. 99: 107-117.
Orskov, E.R., McDonald, I. (1979) The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. J Agric Sci. (Cambridge). 92: 499-503.
Palmquist, D.L., Jenkins, T.C. (1980) Fat in lactation rations: review. J Dairy Sci. 63: 1.
Parnian Khaje Dizaj, F., Taghizadeh, A., Moghaddam, G.A., Janmohammadi, H. (2010) Use of in vitro gas production technique for evaluation of nutritive parameters of barley and corn grain treated by different microwave irradiation times. Iran J Anim Sci Res. 21: 15-27.
Patra, A.K., Kamra, Neeta Agarwal, D.N. (2006) Effect of plant extracts on in vitro methanogenesis, enzyme activities and fermentation of feed in rumen liquor of buffalo. Anim Feed Sci Technol. 128: 276–291.
Pirmohammadi, R., Teimouri yansari, A., Afshar hamidi, B.A., Manafiazar, Gh. (2007) Effect of different fibrous and nonfiber carbohydrate levels on nutrient digestibility of total mixed ration using in vivo in buffalo. Ital J Anim Sci. 6: 476-479.
Rainone, F. (2005) Milk Thistle. Am Fam Physician. 72: 1285–1288.
Roger, V., Grenet, E., Jamot, J., Bernalier, A., Fonty, G., Gouet, P. (1992) Degradation of maize stem by two rumen fungal species, Piromyces comrnunis and caecomyces comrnunis, in pure cultures or in association with cellulolytic bacteria. Rep Nutr Dev. 32: 321-329.
Rymer, C., Huntington , J.A., Williams, B.A., Givens, D.I. (2005) In vitro cumulative gas production techniques: History, methodological considerations and challenges. Anim Feed Sci Technol. 123-124: 9-30.
Sallam, H.S.M.A., da Silva Bueno, I.C., de Godoy, P.B., Eduardo, F.N., Schmidt Vittib, D.M.S., Abdalla. A.L. (2010) Ruminal fermentation and tannins bioactivity of some browses using a semi-automated gas production technique. Trop Subtrop Agro-ecosyst. 12: 1-10.
Sallam, H.S.M.A., Abdeigaleil, S.M.A., Bueno, I.C.S., Nassera, M.E.A., Araujo, R.C., Abdalla, A.L. (2011) Effect of some essentioal oils on in vitro methan emission. Arch Anim Nutr. 65: 203-214.
Saller, R., Meier, R., Brignoli, R. (2001) The use of silymarin in the treatment of liver diseases. Drugs. 61: 2035-2063.
Simánek, V., Křen, V., Ulrichová, J., Vicar, J., Cvak, L. (2000) Silymarin: What is the name…? An appeal for the change of editorial policy. Hepatology. 32: 442-443.
Smith, A.H., Zoetendal, E., Mackie, R.I. (2005) Bacterial Mechanisms to Overcome Inhibitory effects of Dietary Tannins. Microbiol Ecol. 50: 197-205.
Sun, X.Z., Hoskin, S.O., Muetzel, S., Molan, G., Clark, H. (2011) Effects of forage chicory (Cichorium intybus) and perennial ryegrass (Lolium perenne) on methane emissions in vitro and from sheep. Anim Feed Sci Technol. 166: 391-397.
Sommart, K., Parker, D.S., Rowlinson, P., Wanapat, M. (2000) Fermentation characteristics and microbial protein synthesis in an in vitro system using cassava, rice straw and dried ruzi grass as substrates. Asian-Aust. J Anim Sci. 13: 1084-1093.
Szumacher-Strabel, M., Cieślak, A., Nowakowska, A. (2009) Effect of oils rich in linoleic acid on in vitro rumen fermentation parameters of sheep, goats and dairy cows. Anim Feed Sci Technol. 18: 440-452.
Tabatabaei, M.M. (2003) Aspects Physiology of ruminants Nutrition. Buali Sina University Publications. Hamedan, Iran.
Tilly, J.M.A., Terry, R.A. (1963) A two stage technique for the indigestion of forage crops. J Br Grassl Soc. 18: 104-111.
Tyler, V. (1993) The Honest Herbal. Pharmaceutical Products. (3th ed.) Binghamton, NY, USA.
Van Soest, P.J., Robertson, J.B., Lewis, B.A. (1991) Methods of dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. J Dairy Sci. 74: 3583-3597.
Yang, W.Z., Beauchemin, K.A., Koenig, K.M., Rode, L.M. (1997) Comparison of hull-less barley, barley, or corn for lactating cows: Effect on extent of digestion and milk production. J Dairy Sci. 80: 2475-2486.