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Agronomy > Curricula Vitae


Dr. Nathan Krueger


Doctor of Philosophy, Animal Sciences (minor in Agronomy). University of Florida. Gainesville, Florida.   May 2006

Masters of Science, Agricultural Education. Texas A&M University. College Station, Texas.  August 2001

Bachelors of Science, Animal Science: Production/Industry Option.  Texas A&M University. College Station, Texas.  August 1999


Blinn College, Bryan, Texas.   August 2012 - Present

Agriculture Science Instructor;  Dept. Head since 2015

-AGRI 1307- Agronomy

-AGRI 1315- Horticulture.

-AGRI 1319- Animal Science.

-AGRI 1329- Principles of Food Science.

-AGRI 2317- Ag Economics.

-AGRI 2330- Wildlife Conservation and Management.

 Blinn College, Bryan, Texas.  August 2009 – August 2012

Natural Sciences Instructor

- Teach multiple sections of BIOL 1406 - General Biology I.

- Teach multiple sections of BIOL 1407 - General Biology II.

 USDA, Southern Plains Agricultural Research Center, College Station, Texas.  August 2006 - August 2011

Research Biologist           

- Guest lectured in graduate research methods in animal science courses at Texas A&M University. Lectures included: gas chromatography for measuring various analytes, anaerobic microbiological techniques for isolating bacteria, methods for growing and enumerating bacteria (aerobes and    anaerobes).

- Demonstrated the importance of food and animal safety to 4-H’ers enrolled in the 4-H veterinary assistant program.

 University of Florida, Department of Animal Sciences, Gainesville, Florida.   August 2001 - May 2006

Graduate Research Assistant                                                                                

Assisted in teaching various undergraduate courses.

Courses included:

- ANS 3404C Food Animal Nutrition

- ANS 3440 Principles of Animal Nutrition

- AEE 4224 Special Methods in Teaching Ag Ed

- ANS 4245C Beef Stocker/Feedyard Management

Guest lectured in various graduate courses. Courses included:

- ANS 6452 Principles of Forage Quality Evaluation

- ANS 6458 Advanced Methods in Nutrition Techniques

 Texas A&M University, Department of Agricultural Education, College Station, Texas.  January 2000 - August 2001

Graduate Teaching Assistant                                                             

Assisted in teaching undergraduate course: AGED 301 - Topics in Ag Leadership and Education. Duties included: delivered selected lectures, administered exams, reviews and graded course work.

- Taught two sections of ANSC 318 Feeds and Feeding labs. Duties included: delivered weekly laboratory lectures, developed and graded weekly problem sets, lab quizzes, and delivered lecture reviews.

- Assisted in organizing and coordinating Houston Livestock Show and Rodeo (Houston, Texas) 4-H and FFA horse, dairy and livestock judging contests.

- Organized and assisted in coordinating area and state FFA Career Development Events (CDE’s) held at Texas A&M University.


Edwards, H. D., W. L. Shelvier, S. Choi, D. J. Nisbet, N. A. Krueger, R. C. Anderson and  S. B, Smith.  2017.  Immunogenic inhibition of prominent ruminal bacteria as a means to reduce lipolysis and biohydrogenation activity in vitro.  Food Chem.  218(1) 372-377.

Epps, S.V.R., B.T. Petrujkic, I. Sedej, N.A. Krueger, R.B. Harvey, R.C. Beier, T.B. Stanton, T.D. Phillips, R.C. Anderson, D.J Nisbet. 2015. Comparison of anti-Campylocacter activity of free thymol and thymol-B-D-glucopyranoside in absence or presence of B-glycoside-hydrolyzing gut bacteria.  Food Chem.  173(8) 92-98.

 Anderson R.C., R. Harvey, T. Wickersham, J. McDonald, C. Ponce, M. Brown, W. Pinchak, J. Osterstock, N.A. Krueger, and D.J. Nisbet. 2014.  Effect of distillers' feedstuffs on Campylobacter carriage in feedlot cattle.  J Food Protection.  77(11).  pp 1968-75.

Edwards, H.D., R.C. Anderson, T.M. Taylor, R.K. Miller, M.D. Hardin, N.A Krueger, D.J Nisbet. 2013.  Development of non-forage based incubation system for culturing ruminal lipase producing bacteria in-vitro.  Agric. Food Anal. Bact. 3(4). pp 293-302.

Edward, H.E., R. C. Anderson, T. M. Taylor, R.K. Miller, M.D> Hardin, D.J. Nisbet, N.A. Krueger, S. B. Smith.  2013.  Interactions between oil substrates and glucose on pure cultures of ruminal Lipase-producing bacteria.  Lipds.  48(7).

Edrington, T.S., G.H. Loneragan, J. Hill, K.J. Genovese, D.m. Britcha-Harhay, R.L. Farrow, N.A. Krueger, T.R. Callaway, R.C. Anderson and D.J. Nisbet.  2013.  Development of challenge models to evaluate the efficacy of a vaccine to reduce carriage of Salmonella in peripheral lymph nodes of cattle.  J. Food Protect.  7, pp 1259-1263.

Petrujkic, B.T., I. Sedej, R.C., Beier, R.C. Anderson, R.B. Harvey, S.V.R. Epps, R.D. Stipanovic, N.A. Krueger, and D.J. Nisbet.  2013.  Ex Vivo absorption of Thymol-B-D-glucopyranoside in piglet everted jejunal segements. J. Agri. Food Chem.,  61 (15), pp 3757–3762 .

Nisbet, D.S., T.S. Edrington, R.L. Farrow, K.G. Genovese, T.R. Callaway, R.C. Anderson, and N.A. Krueger.  2012.  Lack of effect of feeding lactoferrin on intestinal populations and fecal shedding of Salmonella typhimurium in experimentally infected weaned pigs. Agricul. Food Anal. Bacteriol. 2:280-290.

Edwards, H., R. Anderson, R. Miller, T. Taylor, M. Hardin, S. Smith, N. Krueger, and D. Nisbet.  2012.  Glycerol inhibition of ruminal lipolysis in vitro.  J. Dairy Sci.  95:9 5176-5181.

Anderson, R.C., M. Vodovnik, B.R. Min, W.E. Pinchak, N.A. Krueger, R.B. Harvey, and D.J. Nisbet.  2012.  Bactericidal effect of hydrolysable and condensed tannin extracts on Campylobacter jejuni in vitro.  Foilia Microbiol.  57:253-258.

Krueger N.A., T.S. Edrington, R. Farrow, G.R. Hagevoort, R.C. Anderson, G. Loneragen, T.R. Callaway, and D.J. Nisbet. 2012.  Evaluation of an experimental sodium chlorate product, with and without nitroethane, on Salmonella in cull dairy cattle.  Agricul. Food and Anal. Bacteriol.  2:2 pp 82-87.

Anderson, R.A., N.A. Krueger, K. Genovese, T. Stanton, K. MacKinnon, R. Harvey, T. Edrington, T. Callaway, and D. Nisbet.  2012.  Effect of thymol or diphenyliodonium chloride on performance, gut fermentation characteristics, and campylobacter colonization in growing swine.  J. Food Prot. 75: 758-761.  

Farrow, R.L., T.S. Edrington, N.A.Krueger, K.J. Genovese, T.R. Callaway, R.C. Anderson, and D.J. Nisbet.  2012.  Lack of effect of feeding citrus by-products in reducing Salmonella in experimentally infected weanling pigs.  J. Food Prot.  75: 573-575.  

 Callaway, T. R., J. A. Carroll, J. D. Arthington, T. S. Edrington, M. L. Rossman, M. A. Carr, N. A. Krueger, S. C. Ricke, P. Crandall, and D. J. Nisbet.  2011.  Escherichia coli O157:H7 populations in ruminants can be reduced by orange peel product feeding.  J. Food Prot. 74: 1917-1921.

Gutierrez-Banuelos, H., W.E. Pinchak, B.R. Min, G. E. Carstens, R.C. Anderson, L.O. Tedeschi, W.K. Krueger, N.A. Krueger, P.A. Lancaster, and R.R. Gomez.  2011.  Effects of feeding supplemental and hide-spray application of two sources of tannins on enteric and hide bacteria of cattle.  J. Environ. Sci. Health.  46: 360-365.

Callaway, T.R., T.S. Edrington, R.C. Anderson, T.L. Poole, K.J. Genovesse, N.A. Krueger, R.B. Harvey, and D.J. Nisbet.  2011.  Evaluation of phage treatment as a strategy to reduce Salmonella populations in growing swine.  Foodborne Path. Dis.  8: 261-266.  

 Nerren, J.R., T.S. Edrington, L.R. Bernstein, R.L. Farrow, K.G. Genovese, T.R. Callaway, R.C. Anderson, N.A. Krueger, S.E. Duke, and D.J. Nisbet.  2011. Evaluation of gallium maltolate on fecal shedding of Salmonella in cattle.  J. Food Prot. 74: 524-530.

Callaway, T.R., S.E. Dowd, T.S. Edrington, R.C. Anderson, N. Krueger, N. Bauer, P.J. Kononoff, and D.J. Nisbet.  2010.  Evaluation of bacterial diversity in the rumen and feces of cattle fed different levels of dried distillers grains plus solubles using bacterial tag-encoded FLX amplicon pyrosequencing. J Anim. Sci. 88: 3977-3983.

 Krueger N.A., R.C. Anderson, L.O. Tedeschi, T.R. Callaway, T.S. Edrington, and D.J. Nisbet.  2010.  Evaluation of feeding glycerol on free fatty acid production and fermentation kinetics on mixed ruminal microbes in vitro. Biores. Tech.  101: 8469-8472.

Anderson, R.C., J.K. Huwe, D.J. Smith, T.B. Stanton, N.A. Krueger, T.R. Callaway, T.S. Edrington, R.B. Harvey and D.J. Nisbet. 2010.  Effect of nitroethane, dimethyl-2-nitroglutarate and 2-nitro-methyl-propionate on ruminal methane production and hydrogen balance in vitro.  Biores. Tech.  101: 5345-5349.

Oliver, E.C., R.C. Beier, M.E. Hume, S.M. Horrocks, T.A. Casey, J.S. Caton, D.J. Nisbet, D.J. Smith, N.A. Krueger, and R.C. Anderson.  2010.  Effect of chlorate, molybdate, and shikimic acid on Salmonella enterica serovar Typhimurium in aerobic and anaerobic cultures.  Anaerobe.  16: 106-113.

Anderson, R.C., N.A. Krueger, J.A. Byrd, R.B. Harvey, T.R. Callaway, T.S. Edrington, and D.J. Nisbet.  2009.   Effects of thymol and diphenyliodonium chloride against Campylobacter spp. during pure and mixed culture in vitro.  J. App. Microbiol.  107: 1258-1268.

 Beier, R.C., R.C. Anderson, N.A. Krueger, T.S. Edrington, T.R. Callaway, and D.J. Nisbet.  2009.  Effect of nitroethane and nitroethanol on the production of indole and 3-methylindole (skatole) from bacteria in swine feces by gas chromatography.  J. Environ. Sci. Health Part B. 44: 613-620.

Chikagwa-Mulunga, S.K., A.T. Adesogan, N.J. Szabo, R.C. Littell, S.C. Phatak, S.C. Kim, K.G. Arriola, C.M. Huisden, D.B. Dean, and N.A. Krueger. 2009. Nutritional characterization of Mucuna pruriens: 3. Effect of replacing soybean meal with Mucuna on intake, digestibility, N balance and microbial protein synthesis in sheep. Anim. Feed Sci. Technol. 148: 107-123.

Krueger, W.K., H. Gutierrez-Banuelos, G.E. Carstens, W.E. Pinchak, B.R. Min, R.C. Anderson, N.A. Krueger, and T.D.A. Forbes.  2009.  Effects of dietary tannin source on performance, feed efficiency, and carcass and non-carcass traits in steers fed a high grain diet.  Anim. Feed Sci. Technol.  159: 1-9. 

Callaway, T.R., S.E. Dowd, J.L. McReynolds, T.S. Edrington, J.A. Byrd, R.C. Anderson, N.A. Krueger, and D.J. Nisbet. 2009. Evaluation of the bacterial diversity in cecal contents of laying hens fed various molting diets using bacterial tag-encoded FLX amplicon pyrosequencing (bTEFAP). Poultry Sci. 88: 298-302.

Anderson, R.C., N.A. Krueger, T.B. Stanton, T.R. Callaway, T.S. Edrington, R.B. Harvey, Y.S. Jung, and D.J. Nisbet. 2008. Effects of select short chain nitrocompounds on in vitro ruminal fermentation during conditions of limiting or excess added reductant. Bior. Technol. 99: 8655-8661.

Dean, D.B., A.T. Adesogan, N.A. Krueger, R.C. Littell. 2008. Effects of treatment with ammonia or fibrolytic enzymes on chemical composition and ruminal degradability of hays produced from tropical grasses. Anim. Feed Sci. Technol. 145: 68-83.

Gutierrez-Banuelos, H., R.C. Anderson, G. Carstens, L. Tedsechi, W. Pinchak, E. Cabrera-Diaz, N. Krueger, T. Callaway, and D. Nisbet. 2008. Effects of nitroethane and monensin on ruminal fluid fermentation characteristics and nitrocompound-metabolizing bacterial populations. J. Agric. Food Chem. 56: 4650-4658.

Krueger, N.A. and A.T. Adesogan. 2008. Effect of applying ammonia or fibrolytic enzymes to bermudagrass hay on feed intake, digestion kinetics and growth of beef steers. J. Anim. Sci. 86: 882-889.

Krueger, N.A. and A.T. Adesogan. 2008. Effects of different mixtures of fibrolytic enzymes on digestion and fermentation of bahiagrass hay. Anim. Feed Sci. Technol. 145: 84-94.

Krueger, N.A., A.T. Adesogan, C.R. Staples, W.K. Krueger, D.B. Dean, and R.C. Littell. 2008. The potential to increase digestibility of tropical grasses with a fungal, ferulic acid esterase enzyme preparation. Anim. Feed Sci. Technol. 145: 95-108.

Krueger, N.A., R.C. Anderson, W.K. Krueger, W.J. Horne, T.R. Callaway, T.S. Edrington, R.B. Harvey, G.E. Carstens and D.J. Nisbet. 2008. Prevalence and concentration of Campylobacter in rumen contents and feces in pasture and feedlot-fed cattle. Foodborne Path. Dis. 5: 571-577.

Adesogan, A.T., N. Krueger, S.C. Kim. 2005. A novel, wireless, automated system for measuring fermentation gas production kinetics of feeds and its application to feed characterization. Anim. Feed Sci. Technol. 123-124: 211-223.

Dean D.B., A.T. Adesogan, N. Krueger, and R.C. Littell. 2005. Effect of fibrolytic enzymes on the fermentation characteristics, aerobic stability, and digestibility of bermudagrass silage. J. Dairy Sci. 88: 994-1003.

Adesogan, A.T., N. Krueger, D.B. Dean, M.B. Salawu, and C.R. Staples. 2004. The influence of treatment with dual purpose inoculants or soluble carbohydrates on the fermentation and aerobic stability of bermudagrass. J. Dairy Sci. 87: 3407-3416.

Krueger, N., C.R. Staples, R.C. Littel, D.B. Dean, W. Krueger, and A.T. Adesogan. 2003. The influence of enzymes containing high esterase, cellulase, and endogalacturonase activity on the digestibility of mature, C4 grass hays. Trop. and Subtrop. Agroecos. 3: 201-204.

Dean, D.B., N. Krueger, L.E. Sollenberger, R.C. Littel, and A.T. Adesogan. 2003. The effect of treatment of bermudagrass and bahiagrass hays with fibrolytic enzymes on digestibility in vitro. Trop. and Subtrop. Agroecos. 3: 197-200.

Krueger, N., C.R. Staples, R.C. Little, D.B. Dean, W. Krueger, and A.T. Adesogan. 2003. The potential for increasing the digestibility of poor quality forages with a fungal ferulic acid esterase enzyme preparation. Trop. and Subtrop. Agroecos. 3: 205-209.

Chikagwa-Malunga S.K., N. Krueger, D.B. Dean, L.E. Sollenberger, and A.T. Adesogan. 2003. Effect of maturity at harvest on the nutritive value, botanical fractions, and biomass yield of Mucuna pruriens. Trop. and Subtrop. Agroecos. 3: 127-130.