Selected Book Chapters and Reviews
Hristov, A.N., J. Oh, C. Lee, R. Meinen, F. Montes, T. Ott, J. Firkins, A. Rotz, C. Dell, A. Adesogan, W. Yang, J. Tricarico, E. Kebreab, G. Waghorn, J. Dijkstra, and S. Oosting. 2013. Mitigation of greenhouse gas emissions in livestock production—A review of technical options for non-CO2 emissions. Gerber, P.J, B. Henderson, and H.P.S. Makkar, eds. FAO Animal Production and Health Paper No. 177. FAO, Rome, Italy.
Firkins, J.L., and Z. Yu. 2015. How to use data on the rumen microbiome to improve our understanding of ruminant nutrition. J. Anim. Sci. 93:1450-1470.
Hackmann, T.J., and J.L. Firkins. 2015. Maximizing efficiency of rumen microbial protein production. Frontiers in Microbiology 6:465. doi: 10.3389/fmicb.2015.00465.
Selected Journal Articles
Sylvester, J.T., S.K.R. Karnati, Z. Yu, M. Morrison, and J.L. Firkins. 2004. Development of an assay to quantify rumen ciliate protozoal biomass in cows using real-time PCR. J. Nutr. 134:3378-3384. (Editorial Commententary)
Hackmann, T.J., L.E. Diese, and J.L. Firkins. 2013. Quantifying the responses of mixed rumen microbes to excess carbohydrate. Appl. Environ. Microbiol. 79:3786-3795. (Editor pick)
Diaz, H.L. K.N. Barr, K.R. Godden, J.E. Plank, I. Zapata, A.N. Schappacher, W.P. Wick, and J.L. Firkins. 2014. Eukaryotic inhibitors or activators elicit responses to chemosensory compounds by ruminal isotrichid and entodiniomorphid protozoa. J. Dairy Sci. 97:2254-2269.
Firkins, J.L., C.M. Fowler, E. Devillard, and B.J. Bequette. 2015. Kinetics of microbial methionine metabolism in continuous cultures administered different methionine sources. J. Dairy Sci. 98:1178-1194.
Hackmann, T.J., and J.L. Firkins. 2015. Electron transport phosphorylation in rumen butyrivibrios: Unprecedented ATP yield for glucose fermentation to butyrate. Front. Microbiol. 6:622. doi: 10.3389/fmicb.2015.00622.
Roman-Garcia, Y., R.R. White, and J.L. Firkins. 2016. Meta-analysis of postruminal microbial nitrogen flows in dairy cattle. I. Derivation of equations. J. Dairy Sci. 99:7918-7931.
White, R.R., Y. Roman-Garcia, J.L. Firkins. 2016. Meta-analysis of postruminal microbial nitrogen flows in dairy cattle. II. Approaches to and implications of more mechanistic prediction. J. Dairy Sci. 99:7932-7944.
White, R.R., Y. Roman-Garcia, J.L. Firkins, P. Kononoff, M.J. VandeHaar, H. Tran, T. McGill, R. Garnett, and M.D. Hanigan. 2017. Evaluation of the National Research Council (2001) dairy model and derivation of new prediction equations. 2. Rumen degradable and undegradable protein. J. Dairy Sci. 100:3611-3627.
Sok, M. D.R. Ouellet, J.L. Firkins, D. Pellerin, and H. Lapierre. 2017. Amino acid composition of rumen bacteria and protozoa in cattle. J. Dairy Sci. 100:5241-5249.
Wenner, B.A., J. de Souza, F. Batistel, T.J. Hackmann, Z. Yu, and J.L. Firkins. 2017. Association of aqueous hydrogen concentration with methane production in continuous cultures modulated to vary pH and solids passage rate. J. Dairy Sci. 100:5378-5387.
