Abdelrahman M.M. and Hunaiti D.A (2008). The effect of dietary yeast and protected methionine on performance and trace minerals status of growing Awassi lambs. Livest. Sci. 115, 235-241.
Adriana F., Mendoza G., Pinos J.M., Plata F., Vega S. and Barcena R. (2009). Effects of rumen protected methionine on milk production of dairy goats. Italian J. Anim. Sci. 8, 271-275.
AOAC. (1995). Official Method of Analysis. Vol. I. 15PthPEd. Association of Official Analytical Chemists, Arlington, Virginia, USA.
AOAC. (2005). Official Method of Analysis. Vol. I. 18PthPEd. Association of Official Analytical Chemists, Arlington, Gaithersburg, MD.
Barakat M.A. and Saddick I.K. (1998). Effect of feeding methinonine supplementated ration to sheep: 1-Digestibility, nitrogen, and sulfur balances, body weight performance and wool characteristics. Minufiya. J. Agric. Res. 13(1), 13-19.
Cecava M.J., Merchen N.R., Berger L.L., Mackie R.I. and Fahey G.C. (1991). Effects of dietary energy level and protein source on nutrient digestion and ruminal nitrogen metabolism in steers. J. Anim. Sci. 69, 22-30.
El-Tahawy A.S. (2010). The prevalence of selected diseases and syndromes affecting Barki sheep with special emphasis on their economic impact. Small Rumin. Res. 90, 83-87.
Goedeken F.K., Klopfenstein T.J., Stock R.A., Britton R.A. and Sindt M.H. (1990). Protein value of feather meal for ruminants as affected by blood additions. J. Anim. Sci. 68, 29-36
Greenwood R.H. and Titgemeyer E.C. (2000). Limiting amino acid for growing Holstein steers limit-fed soybean hull based diets. J. Anim. Sci. 78, 1997-2004.
Lapierre H., Ouelle D.R. and Dopel L. (2009). Do you feed protein or amino acids to make milk. WCDS. Adv. Dairy Tech. 21, 175-189.
Mardiati Z., Sutardi T., Uryahadi S. and Ramli N. (2008). Effect of defaunation and supplementation methionine hydroxy analogue and branched chain amino acid in growing sheep diet based on palm press fiber ammoniated. Pakistan J. Nutr. 7(6), 813-816.
Mata G., Masters D.G., Liu S. and Gulati S.K. (2000). Responses to protected canola meal and methionine in grazing Merino weaners live weight and wool. Asian-australas. J. Anim. Sci. 13, 179-183.
Nolte J.E. and Ferreira A.V. (2005). The effect of rumen degradable protein level and source on the duodenal essential amino acid profile of sheep. South African. J. Anim. Sci. 35(3), 23-29.
Nolte J.E., Ferreira A.V., Nolte N.K., Petersen M.K. and Hallford D.M. (2004). Methionine, at least one branched chain amino acid, are limiting in lambs. Proc. West. Sect. Am. Soc. Anim. Sci. 55, 421-423.
Sankhyan L.P. (1983). Introduction to Farm Management. Tata MC-Grow Hill Publishing Company Limited New Delhi.
SAS (2002). Statistical Analysis System, Version 9.00. SAS Institute, Inc., Cary, NC.
Schwab C.G., Bozak C.K. and Nocek J.E. (1986). Change in amino acid pattern of soybean meal and corn gluten meal upon exposure to rumen fermentation. J. Anim. Sci. 63(1), 158-161.
Schwab C.G., Whitehouse N.L., Mc Laughlin A.M., Kadariya R.K.P., Stpierre N.R., Sloan B.K., Gill R.M. and Robert J.C. (2001). Use of milk protein concentrations to estimate the “m-
thionine bioavailability” of two forms of 2-hydroxyl-4 methylthio butanoic acid (HMB) for lactating cows. J. DairySci. 84(1), 146-151.
SPSS (2001). SPSS⁄PC + advanced statistics 4.0 for the IBM PC / XT / AT and PS / 2/ Marija J. Norusis. SPSS, Inc., New York.
Storm E. and Orskov E.R. (1984). The nutritive value of rumen microorganism in ruminants 4. The limiting amino acids of microbial protein in growing sheep determined by new approach. Br. J. Nutr. 52, 613-620.
Titgemeyer E.C., Merchen N.R. and Berger L.L. (1989). Evaluation of soybean meal, corn gluten meal, blood meal and fish meal as sources of nitrogen and amino acid disappearing from the small intestine of steers. J. Anim. Sci. 67, 262-266.
Van Soest P.J., Robertson J.B. and Lewis B.A. (1991). Methods for dietary fiber, neutral detergent fiber, and non starch polysaccharides in relation to animal nutrition. J. Dairy Sci. 74, 3583-3597.