Bell AW, Slepetis R, Ehrhardt UA. 1995. Growth and accretion of energy and protein in the gravid uterus during late pregnancy in Holstein cows. J Dairy Sci 78:1954–1961.
Bequette BJ, Backwell FRC, Crompton LA. 1998. Current concepts of amino acid and protein metabolism in the mammary gland of the lactating ruminant. J Dairy Sci 81:2540–2559.
Breves G, Schröder B, Heimbeck W, Patton R. 2010. Short communication: Transport of 2-hydroxy-4-methyl-thio-butanoic isopropyl ester by rumen epithelium
in vitro. J Dairy Sci 93:260–264.
Fowler CM. 2009. Evaluation of 2-Hydroxy-4-(methylthio) butanoic acid isopropyl ester and methionine supplementation on efficiency of microbial protein synthesis and rumen bacterial. MS thesis. The Ohio State University.
Drackley JK. 1999. Biology of dairy cows during the transition period: the final frontier. J Dairy Sci 82:2259–2273.
Grummer RR, Hoffman PC, Luck ML, Bertics SJ. 1995. Effect of prepartum and postpartum dietary energy on growth and lactation of primiparous cows. J Dairy Sci 78:172–180.
Guinard J, Rulquin H. 1995. Effects of graded amounts of duodenal infusions of methionine on the mammary uptake of major milk precursors in dairy cows. J Dairy Sci 78:2196–2207.
Littell RC, Milliken GA, Stroup WW, Wolfinger RD. 1996. SAS system for mixed models. SAS Inst INC; Cary, NC:
Noftsger S, St-Pierre NR, Sylvester JT. 2005. Determination of rumen degradability and ruminal effects of three sources of methionine in lactating cows. J Dairy Sci 88:223–237.
NRC. 2001. Nutrient requirements of dairy cattle. 6th EditionNational Academy Press; Washington, DC:
Ordway RS, Boucher SE, Whitehouse NL, Schwab CG, Sloan BK. 2009. Effects of providing two forms of supplemental methionine to periparturient Holstein dairy cows on feed intake and lactational performance. J Dairy Sci 92:5154–5166.
Phipps RH, Reynolds CK, Givens DI, Jones AK, Geraert P-A, Devillard E, Bennett R. 2008. Short communication: Effects of 2-hydroxy-4-(methylthio) butanoic acid isopropyl ester on milk production and composition of lactating Holstein dairy cows. J Dairy Sci 91:4002–4005.
Pisulewski PM, Rulquin H, Peyraud JL, Verite R. 1996. Lactational and systemic responses of dairy cows to postruminal infusions of increasing amounts of methionine. J Dairy Sci 79:1781–1791.
Rulquin H, Graulet B, Delaby L, Robert JC. 2006. Effect of different forms of methionine on lactational performance of dairy cows. J Dairy Sci 89:4387–4394.
Institute SAS. 2004. SAS/STAT 91 User’s Guide. SAS Institute Inc; Cary, NC:
Sharma BK, Erdman RA. 1988. Abomasal infusion of choline and methionine with or without 2-amino-2-methyl-1-propanol for lactating dairy cows. J Dairy Sci 71:2406–2411.
Socha MT, Schwab CG, Putnam DE, Whitehouse NL, Garthwaite BD, Ducharme GA. 2008. Extent of methionine limitation in peak-, early-, and mid-lactation dairy cows. J Dairy Sci 91:1996–2010.
St-Pierre NR, Sylvester JT. 2005. Effects of 2-hydroxy-4-(methylthio) butanoic acid (HMB) and its isopropyl ester on milk production and composition by Holstein cows. J Dairy Sci 88:2487–2497.