AOAC. (2006). Official Methods of Analysis. 18th ed. Association of Official Analytical Chemists, Arlington, VA.
Borucki Castro, S. I., Phillip, L. E., Lapierre, H., Jardon, P. W. & Berthiaume, R. (2007). Ruminal Degradability and Intestinal Digestibility of Protein and Amino Acids in Treated Soybean Meal Products. Journal of Dairy Science, 90, 810-822.
Calsamiglia, S. & Stern, M. D. (1995). A three-step in vitro procedure for estimating intestinal digestion of protein in ruminants. Journal Animal Science, 73, 1459-1465.
Cleale, R. M., Klopfenstein, T. J., Britton, R. A., Satterlee, L. D. & Lowry, S. R. (1987). Induced non-enzymatic browning of soybean meal. I. Effects of factors controlling non-enzymatic browning on in vitro ammonia release. Journal of Animal Science, 65(5), 1312-1318.
Crooker, B. A., Clark, J. H., Shanks, R. D. & Fahey Jr, G. C. (1987). Effects of ruminal exposure on the amino acid profile of feeds. Canadian Journal of Animal Science, 67(4), 1143-1148.
Erasmus, L. J., Botha, P. M., Cruywagen, C. W., & Meissner, H. H. (1994). Amino Acid Profile and Intestinal Digestibility in Dairy Cows of Rumen-Undegradable Protein from Various Feedstuffs1. Journal of dairy science, 77(2), 541-551.
European Comission. (1998). Establishing community methods of analysis for the determination of amino acids, crude oils and fats, and olaquindox in feedingstuffs and amending directive 71/393/EEC. Comission directive 98/64/EC.
FDA (U.S. Food and Drug Administration). (2004). CVM and ruminant feed (BSE) inspections. Rule 21 CFR, part 589. 2000. Code of Federal Regulations. Center for Veterinary Medicine, FDA, Washington, DC. http://www.fda.gov/cvm/RuminantFeed
Finley, J. W. (1985). Reducing variability in amino acid analysis. Pages 15–31 in Digestibility and Amino Acid Availability in CerealsandOilseeds. J.W. FinleyandD. T. Hopkins, ed. American Association of Cereal Chemists, Inc., St. Paul, MN.
., Hewage, I. I. & Lapierre, H
. (2016).Milk protein yield and mammary metabolism are affected by phenylalanine deficiency but not by threonine or tryptophan deficiency. Journal of Dairy Science
, 99(4), 3144-56.
Gargallo, S., Calsamiglia, S. & Ferret, A. (2006). A modified three-step in vitro procedure to determine intestinal digestion of proteins. Journal of animal science, 84(8), 2163-2167.
Gerrard, J. A. (2002). Protein–protein cross linking in food: Methods, consequences, applications. Trends Food Science Technology, 13, 391-399.
Harstad, O. M. & Prestlúkken, E. (2000). Effective rumen degradability and intestinal indigestibility of individual amino acids in solvent-extracted soybean meal (SBM) and xylose-treated SBM (Soypass©) determined in situ. Animal Feed Science Technology, 83, 31-47.
Ipharraguerre, I. R., Clark, J. H. & Freeman, D. E. (2005). Rumen fermentation and intestinal supply of nutrients in dairy cows fed rumen-protected soy products. Journal of Dairy Science, 88, 2879-2892.
Kim, C.-H., Choung, J.-J. & Chamberlain, D. G. (2001a). Responses of milk production to the intravenous infusion of amino acids in dairy cows given diets of grass silage and cereal-based supplements. Journal of Animal Physiology and Animal Nutrition, 85, 293-300.
Lobley, G. E. (2002). Protein turnover-What does it mean for animal production? Pages 1–15 in Proc. Symp. Amino Acids: Milk, Meat, and More. H. Lapierre and D. R. Ouellet, ed. Can. Soc. Anim.Sci., Quebec, Canada
Liu, K. (1999). Chemistry and nutritional value of soybean components. Pages 25–114 in Soybeans: Chemistry, Technology and Utilization. Monsanto, ed. Aspen Publishers, Gaithersburg, MD
Maxin, G., Ouellet, D. R. & Lapierre, H. (2013). Ruminal degradability of dry matter, crude protein, and amino acids in soybean meal, canola meal, corn, and wheat dried distiller’s grains. Journal of Dairy Science, 96, 5151-5160.
Mjoun, K., Kalscheur, K. F., Hippen, A. R. & Schingoethe, D. J. (2010). Ruminal degradability and intestinal digestibility of protein and amino acids in soybean and corn distillers grains products. Journal of Dairy Science, 93, 4144-4154
Nocek, J. E. (1985). Evaluation of specific variables affecting in situ estimates of ruminal dry matter and protein digestion. Journal of Animal Science, 60, 1347-1358.
NRC. (2001). Nutrient Requirements of Dairy Cattle. 7th rev. ed. National Research Council, National Academies Press, Washington, DC
Ørskov, E. R. & McDonald, I. (1979). The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agriculture Science, 92, 499-503.
Overton, T. R., Emmert, L. S. & Clark, J. H. (1998). Effects of source of carbohydrate and protein and rumen-protected methionine on performance of cows. Journal of Dairy Science, 81, 221-228.
Patton, R. A. (2010). Effect of rumen-protected methionine on feed intake, milk production, true milk protein concentration, and true milk protein yield, and the factors that influence these effects: A meta-analysis. Journal of Dairy Science, 93, 2105-2118.
Paz, H. A., Klopfenstein, T. J., Hostetler, D., Fernando, S. C. & Kononoff, P. J. (2014). Ruminal degradation and intestinal digestibility of protein and amino acids in high-protein feedstuffs commonly used in dairy diets. Journal of Dairy Science, 97, 6485- 6498
Prestlúkken, E. & Rise, O. (2003). Protein and amino acid digestibility in dairy cows measured with mobile nylon bags recovered in ileumor in faeces. Acta Agric. Scand. Sect. A Animal Science, 53, 11-20.
Richardson, C. R. & Hatfield, E. E. (1978). The limiting amino acid in growing cattle. Journal of Animal Science, 46, 740-745.
Yu, P. (2011). Dry and moist heating-induced changes in protein molecular structure, protein subfraction, and nutrient profiles in soybeans. Journal of dairy science, 94(12), 6092-6102.
Satter, L. D. (1986). Protein supply from undegraded dietary protein. Journal of Dairy Science, 69, 2734-2749.
Schwab, C. G. (2010). Balancing diets for amino acids: Nutritional, environmental and financial implications. Pages 1-13 in proc. Tri –State Dairy Nutri. Conf., Ft. Wayne. IN. The Ohio State University, Columbus.
Sniffen, C. J., O’Connor, J. D., Van Soest, P. J., Fox, D. G. & Russell, J. (1992). A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein system availability. Journal of Animal Science, 70, 3562-3577.
Tice, E. M., Eastridge, M. L. & Firkins, J. L. (1993). Raw soybeans and roasted soybeans of different particle sizes. 1. Digestibility and utilization by lactating cows. Journal of Dairy Science, 76, 224-235.
Titgemeyer, E. C. & Merchen, N. R. (1990b). The effect of abomasal methionine supplementation on nitrogen retention of growing steers postruminally infused with casein or nonsulfur-containing amino acids. Journal of Animal Science, 68, 750-757.
Vanhatalo, A., Huhtanen, P., Toivonen, V. & Varvikko, T. (1999). Responses of dairy cows fed grass silage diets to abomasal infusions of histidine alone or in combinations with lysine and methionine. Journal of Dairy Science, 82, 2674-2685.
Van Duinkerken, G., Blok, M. C., Bannink, A., Cone, J. W., Dijkstra, J., Van Vuuren, M. & Tamminga, S. (2011). Update of the Dutch protein evaluation system for ruminants: The DVE/OEB2010 system. Journal of Agriculture Science, 149, 351-367.
Van Soest, P. J., Robertson, J. B. & Lewis, B. A. (1991). Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science, 74, 3583-3597.
Van Straalen, W. M., Odinga, J. J. & Mostert, W. (1997). Digestion of feed amino acids in the rumen and small intestine of dairy cows measured with nylon-bag techniques. British Journal of Nutrition, 77, 83-97.
Varvikko, T. (1986). Microbially corrected amino acid composition of rumen undegraded feed protein and amino acid degradability in the rumen of feeds enclosed in nylon bags. British Journal of Nutrition, 56, 131-140.
Volden, H. & Larsen, M. (2011). Digestion and metabolism in the gastrointestinal tract. Pages 59–80 in NorFor-The Nordic Feed Evaluation System. H. Volden, ed. Wageningen Academic Publishers, Wageningen, the Netherlands.
Windschitl, P. M. & Stern, M. D. (1988). Evaluation of calcium lignosulfonate-treated soybean meal as a source of rumen protected protein for dairy cattle. Journal of Dairy Science, 71, 3310-3322.
Wu, Z., Bernard, J. K., Eggleston, R. B. & Jenkins, T. C. (2012). Ruminal escape and intestinal digestibility of ruminally protected lysine supplements differing in oleic acid and lysine concentrations.Journal of Dairy Science, 95, 2680-2684.