Ruminal Nitrogen Metabolism: Perspectives for Integration of Microbiology and Nutrition for Dairy
References
- . Sequestration, migration and lysis of protozoa in the rumen. J. Gen. Microbiol. 1990;136:1869–1875
- . Nitrogen metabolism in the rumen. J. Dairy Sci. 2004;88(E Suppl):E9–E21
- . Cyclic GMP-dependent protein kinases in protozoa. Front. Biosci. 2005;10:1229–1238
- . Structure, function, and evolution of microbial adenylyl and guanylyl cyclases. Mol. Microbiol. 2004;52:1229–1242
- . Influence of soybean oil in high fiber diets fed to nonlactating cows on ruminal unsaturated fatty acids and nutrient digestibility. J. Dairy Sci. 1998;81:2451–2458
- . Adaptation of microorganisms to cold temperatures, weak acid preservatives, low pH, and osmotic stress: A review. Comp. Rev. Food Sci. Food Safety. 2003;3:1–20
- . Riding the ciliate cell cycle–A thirty-five-year prospective. J. Euk. Microbiol. 2001;48:505–518
- . Microbial growth rates in nature. Bacteriol. Rev. 1971;35:39–58
- . Adaptation of beef cattle to high-concentrate diets: Performance and ruminal metabolism. J. Anim. Sci. 2006;84(E Suppl):E25–E33
- . The ability of “low G + C gram-positive” ruminal bacteria to resist monensin and counteract potassium depletion. Curr. Microbiol. 1999;39:226–230
- . Selection of a highly monensin-resistant Prevotella bryantii subpopulation with altered outer membrane characteristics. Appl. Environ. Microbiol. 1999;65:4753–4759
- . Variations in the ability of ruminal gram-negative Prevotella species to resist monensin. Curr. Microbiol. 2000;40:185–189
- . CodY-regulated aminotransferases AraT and BcaT play a major role in the growth of Lactococcus lactis in milk by regulating the intracellular pool of amino acids. Appl. Environ. Microbiol. 2003;69:3061–3068
- . Generation times of Epidinium caudatum and Entodinium caudatum, determined in vitro by transferring at various time intervals. J. Anim. Sci. 1998;76:1189–1196
- . Rumen Microbiology. Nottingham, UK: Nottingham University Press; 2003;
- . In vitro determination of generation times for Entodinium exiguumOphryoscolex purkynjei, and Eudiplodinium maggii. J. Euk. Microbiol. 2004;51:333–338
- . Factors affecting the migration and sequestration of rumen protozoa in the family Isotrichidae. J. Gen. Microbiol. 1989;135:539–548
- . Simulation of the dynamics of protozoa in the rumen. Br. J. Nutr. 1994;72:679–699
- . Different mathematical approaches to estimating microbial protein supply in ruminants. J. Dairy Sci. 1998;81:3370–3384
- . Quantification of the recycling of microbial nitrogen in the rumen using a mechanistic model of rumen fermentation processes. J. Agric. Sci. 1998;130:81–94
- . Application of the gas production technique to feed evaluation systems for ruminants. Anim. Feed Sci. Technol. 2005;123-124:561–578
- . Simulation of the effects of diet on the contribution of rumen protozoa to degradation of fibre in the rumen. Br. J. Nutr. 1995;74:617–634
- . 16S rDNA library-based analysis of ruminal bacterial diversity. Antonie Van Leeuwenhoek. 2004;86:263–281
- . Ammonia production by ruminal microorganisms and enumeration, isolation, and characterization of bacteria capable of growth on peptides and amino acids from the sheep rumen. Appl. Environ. Microbiol. 2002;68:4925–4931
- . Quantitative meta-analysis on the effects of defaunation of the rumen on growth, intake and digestion in ruminants. Livest. Prod. Sci. 2004;85:81–97
- . Novel hydrolase diversity retrieved from a metagenome library of bovine rumen microflora. Environ. Microbiol. 2005;7:1996–2010
- . Maximizing microbial protein synthesis in the rumen. J. Nutr. 1996;126:1347S–1354S
- . Modeling ruminal digestibility of carbohydrates and microbial protein flow to the duodenum. J. Dairy Sci. 1998;81:3350–3369
- . Effects of grain variability and processing on starch utilization by lactating dairy cattle. J. Anim. Sci. 2001;79(E Suppl):E218–E238
- . Integration of ruminal metabolism in dairy cattle. J. Dairy Sci. 2006;89(E Suppl):E31–E51
- . Effects of feed intake and dietary urea concentration on ruminal dilution rate and efficiency of bacterial growth in steers. J. Dairy Sci. 1987;70:2312–2321
- . Whole animal nitrogen balance in cattle. In: Pfeffer E, Hristov A editor. Nitrogen and Phosphorus Nutrition of Cattle and Environment. Cambridge, MA: CAB International; 2005;p. 167–185
- . Characterisation and quantification of the microbial populations in the rumen. In: Sejrsen K, Hvelplund T, Nielsen MO editor. Ruminant Physiology, Digestion, Metabolism and Impact of Nutrition on Gene Expression, Immunology and Stress. Wageningen, the Netherlands: Wageningen Academic Publishers; 2006;p. 19–54
- . In vitro growth and starch digestion by Entodinium exiguum as influenced by the presence or absence of live bacteria. J. Anim. Sci. 2001;79:2465–2471
- . The Cornell net carbohydrate and protein system for evaluating herd nutrition and nutrient excretion. Anim. Feed Sci. Technol. 2004;112:29–78
- . Metagenomics: From acid mine to shining sea. Environ. Microbiol. 2004;6:543–545
- . Effects of urea infusion and ruminal degradable protein concentration on microbial growth, digestibility, and fermentation in continuous culture. J. Anim. Sci. 2003;81:329–336
- . Efficacy of ionophores in cattle diets for mitigation of enteric methane. J. Anim. Sci. 2006;84:1896–1906
- . Assessment of amino acid requirements for optimum fermentation of xylan by mixed micro-organisms from the sheep rumen. Anim. Sci. 2005;80:353–360
- . Formation of trans fatty acids is not involved in growth-linked membrane adaptation of Pseudomonas putida. Appl. Environ. Microbiol. 2005;71:1915–1922
- . Fat supplements affect fractional passage rates of ruminal fatty acid biohydrogenation and passage in dairy cows. J. Nutr. 2006;136:677–685
- . Whole linted cottonseed as a forage substitute: Fiber effectiveness and digestion kinetics. J. Dairy Sci. 2002;85:1988–1999
- . Chemical factors involved in ruminal fiber digestion. J. Dairy Sci. 1986;69:2755–2766
- . Effect of sodium laurate on ruminal fermentation and utilization of ruminal ammonia nitrogen for milk protein synthesis in dairy cows. J. Dairy Sci. 2004;87:1820–1831
- . Factors affecting the efficiency of nitrogen utilization in the rumen. In: Hristov AN, Pfeffer E editor. Nitrogen and Phosphorus Nutrition of Cattle and Environment. Wallingford, UK: CAB International; 2005;p. 117–166
- . Effect of carbohydrate source on ammonia utilization in lactating dairy cows. J. Anim. Sci. 2005;83:408–421
- . Critical aspects of feed protein evaluation systems for ruminants. J. Anim. Feed Sci. 2005;14(Suppl. 1):145–170
- . Efficiency of energy utilization by mixed rumen bacteria in continuous culture. J. Dairy Sci. 1975;58:1645–1659
- . Effects of dietary sunflower seed oil on rumen protozoa population and tissue concentration of conjugated linoleic acid in sheep. Small Rumin. Res. 2001;41:215–227
- . Ruminal fermentation and duodenal flow following progressive inoculations of fauna-free wethers with major individual species of ciliate protozoa or total fauna. J. Anim. Sci. 2000;78:750–759
- . Effects of IsotrichaDasytrichaEntodinium, and total fauna on ruminal fermentation and duodenal flow in wethers fed different diets. J. Dairy Sci. 2000;83:776–787
- . Technical note: Effect of removal of microbial cells by centrifugation on peptide and α-amino nitrogen concentrations in ruminal fluid. J. Dairy Sci. 2002;85:3059–3061
- . Amino acids antagonistic to the amino acids inhibitory for growth rate of mixed ruminal bacteria. J. Dairy Sci. 2005;88:2601–2603
- . Manipulation of fermentation profile and methane production with microbial inhibitors and protozoal retention in continuous culture. J. Dairy Sci. 2006;89(Suppl. 1):127–128(Abstr.)
- . Adapting molecular techniques and omasal sampling to assess changes in ruminal bacterial populations and protozoal generation time in cows fed different methionine sources. J. Dairy Sci. 2007;90:798–809
- . Regeneration of cryoresistance of in vitro rumen ciliate cultures. Cryobiology. 2005;51:76–84
- . Multigene family encoding 3′,5′-cyclic-GMP-dependent protein kinases in Paramecium tetraurelia cells. Eukaryot. Cell. 2006;5:77–91
- . Effects of source and amount of protein on ruminal fermentation and passage of nutrients to the small intestine of lactating cows. J. Dairy Sci. 1990;73:3526–3537
- . Effects of protozoa on bacterial nitrogen recycling in the rumen. J. Anim. Sci. 2000;78:2431–2445
- . Novel microbial diversity adherent to plant biomass in the herbivore gastrointestinal tract, as revealed by ribosomal intergenic spacer analysis and rrs gene sequencing. Environ. Microbiol. 2005;7:530–543
- . Kinetics of large ciliate protozoa in the rumen of cattle given sugar cane diets. Br. J. Nutr. 1981;46:371–384
- . Nitrogen metabolism in the rumen. J. Dairy Sci. 1984;67:1072–1089
- . Interaction of tallow and hay particle size on ruminal parameters. J. Dairy Sci. 1999;82:1532–1537
- . Biohydrogenation, duodenal flow, and intestinal digestibility of trans fatty acids and conjugated linoleic acids in response to dietary forage:concentrate ratio and linseed oil in dairy cows. J. Dairy Sci. 2004;87:2472–2485
- . Metabolism and some characteristics of ruminal strains of Megasphaera elsdenii. Appl. Environ. Microbiol. 1989;55:1570–1573
- . Off the hook — How bacteria survive protozoan grazing. Trends Microbiol. 2005;13:302–307
- . Manipulation of rumen fermentation. In: Hobson PN, Stewart CS editor. The Rumen Microbial Ecosystem. London, UK: Chapman and Hall; 1997;p. 523–632
- . An NAD+-dependent glutamate dehydrogenase cloned from the ruminal ciliate protozoan, Entodinium caudatum. FEMS Microbiol. Lett. 2005;247:113–121
- . Effects of a specific blend of essential oil compounds on rumen fermentation. Anim. Feed Sci. Technol. 2004;114:105–112
- . Induction of RpoS-dependent functions in glucose-limited continuous culture: What level of nutrient limitation induces the stationary phase of Escherichia coli?. J.Bacteriol. 1996;178:1465–1468
- . Nutrient Requirements of Dairy Cattle. 7th rev. ed. Washington, DC: Natl. Acad. Sci; 2001;
- . Effects of diet fermentability on efficiency of microbial nitrogen production in lactating dairy cows. J. Dairy Sci. 2003;86:195–207
- . Comparative evaluation of the Molly, CNCPS, and LES rumen models. Anim. Feed Sci. Technol. 2004;112:107–130
- . Effects of degree of fat saturation on fiber digestion and microbial protein synthesis when diets are fed twelve times daily. J. Anim. Sci. 2000;78:2412–2420
- . Compartmental modeling with nitrogen-15 to determine effects of degree of fat saturation on intra-ruminal N recycling. J. Anim. Sci. 2000;78:2421–2430
- . The effect of protozoa on the composition of rumen bacteria in cattle using 16S rRNA gene clone libraries. Biosci. Biotechnol. Biochem. 2005;69:499–506
- . Real-time PCR detection of the effects of protozoa on rumen bacteria in cattle. Curr. Microbiol. 2006;52:158–162
- . Rate of production of protozoa in the rumen and the flow of protozoal nitrogen to the duodenum in sheep and cattle given a pelleted diet of lucerne hay and barley. J. Agric. Sci. 1992;118:229–236
- . Effects of substrate, passage rate, and pH in continuous culture on flows of conjugated linoleic acid and trans C18:1. J. Dairy Sci. 2004;87:3473–3479
- . Assessment of ciliates in the sheep rumen by DGGE. Lett. Appl. Microbiol. 2004;39:144–147
- . Horizontal gene transfer from bacteria to ciliates indicates adaptation to their anaerobic, carbohydrates-rich environment. BMC Genomics. 2006;7:22
- . Strategies that ruminal bacteria use to handle excess carbohydrate. J. Anim. Sci. 1998;76:1955–1963
- . Ionophore resistance of ruminal bacteria and its potential impact on human health. FEMS Microbiol. Rev. 2003;27:65–74
- . A net carbohydrate and protein system for evaluating cattle diets: I. Ruminal fermentation. J. Anim. Sci. 1992;70:3551–3561
- . Methane output and lactation response in Holstein cattle with monensin or unsaturated fat added to the diet. J. Anim. Sci. 1998;76:906–914
- . Biotechnical prospects from metagenomics. Curr. Opin. Biotechnol. 2003;14:303–310
- . Transcriptional control of membrane lipid synthesis in bacteria. Curr. Opin. Microbiol. 2005;8:149–153
- . Evaluation of the passage rate equations in the 2001 dairy NRC model. J. Dairy Sci. 2006;89:2327–2342
- . Development and validation of a real-time PCR method to quantify rumen protozoa and examination of variability between Entodinium populations in sheep offered a hay-based diet. Appl. Environ. Microbiol. 2006;72:200–206
- . Evaluation of chemical and physical properties of feeds that affect protein metabolism in the rumen. J. Dairy Sci. 1994;77:2762–2786
- Sylvester, J. T. 2005. Development and evaluation of new techniques to quantify ruminal pool size and duodenal flow of protozoal nitrogen. PhD Diss. The Ohio State University, Columbus.
- . Development of an assay to quantify rumen ciliate protozoal biomass in cows using real-time PCR. J. Nutr. 2004;134:3378–3384
- . Evaluation of a real-time PCR assay for measuring the ruminal pool and duodenal flow of protozoal nitrogen. J. Dairy Sci. 2005;88:2083–2095
- . Effect of linseed oil supplementation on ruminal digestion in dairy cows fed diets with different forage:concentrate. J. Dairy Sci. 2003;86:3999–4007
- . Effect of forage:concentrate ratio on fatty acid composition of rumen bacteria isolated from ruminal and duodenal digesta. J. Dairy Sci. 2006;89:2668–2678
- . Pelleted beet pulp substituted for high-moisture corn: 3. Effects on ruminal fermentation, pH, and microbial protein efficiency in lactating dairy cows. J. Dairy Sci. 2003;86:3562–3570
- . Nitrogen metabolism in the rumen. In: Pfeffer E, Hristov A editor. Nitrogen and Phosphorus Nutrition of Cattle. Cambridge, MA: CABI Publishing; 2005;p. 71–115
- . Factors affecting the rate of breakdown of bacterial protein in rumen fluid. Br. J. Nutr. 1987;58:313–323
- . Some factors influencing rumen microbial populations. J. Gen. Microbiol. 1962;28:129–146
- . The Rumen Protozoa. New York, NY: Springer-Verlag; 1992;
- . The effects of continuous ruminal dosing with dioctyl sodium sulphosuccinate on ruminal and metabolic charateristics of Holstein cows. Br. J. Nutr. 1993;69:397–408
- . Improved serial analysis of V1 ribosomal sequence tags (SARST-V1) provides a rapid, comprehensive, sequence-based characterization of bacterial diversity and community composition. Appl. Environ. Microbiol. 2006;8:603–611
PII: S0022-0302(07)72057-X
doi: 10.3168/jds.2006-518
© 2007 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.
