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United States Department of Agriculture

Agricultural Research Service

Research Project: Optimizing the Biology of the Animal-Plant Interface for Improved Sustainability of Forage-Based Animal Enterprises

Location: Forage-animal Production Research

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)

Case Study: Recovery from ergot alkaloid-induced vasoconstriction for steers conditioned to grazing seedhead suppressed and unsuppressed pastures of toxic endophyte-infected tall fescue - (Peer Reviewed Journal)

Tall fescue ergot alkaloids are vasoactive in equine vasculature - (Peer Reviewed Journal)

Hops (Humulus lupulus L.) bitter acids: modulation of rumen fermentation and potential as an alternative growth promoter - (Peer Reviewed Journal)
Flythe, M.D., Kagan, I., Wang, Y., Narvaez, N. 2017. Hops (Humulus lupulus L.) bitter acids: modulation of rumen fermentation and potential as an alternative growth promoter. Frontiers in Veterinary Science. 4:131. doi: 10.3389/fvets.2017.00131.

Evaluating a novel endophytic grass for suppressing invertebrates that contribute to bird strike risk at airports - (Peer Reviewed Journal)

From the Lab Bench: Should we be concerned with the digestible energy in grazed forages? - (Popular Publication)

From the Lab Bench: Why depend on a crude measure of protein? - (Popular Publication)

Cell biology symposium: Membrane trafficking and signal transduction - (Peer Reviewed Journal)
Klotz, J.L. 2017. Cell biology symposium: Membrane trafficking and signal transduction. Journal of Animal Science. 95:2183–2184. doi:10.2527/jas2017.1556.

Exogenous lactobacilli mitigate microbial changes associated with grain fermentation (corn, oats, and wheat) by equine fecal microflora ex vivo - (Peer Reviewed Journal)
Harlow, B.E., Lawrence, L.M., Harris, P.A., Aiken, G.E., Flythe, M.D. 2017. Exogenous lactobacilli mitigate microbial changes associated with grain fermentation (corn, oats, and wheat) by equine fecal microflora ex vivo. PLoS One. https://doi.org/10.1371/journal.pone.0174059.

From the Lab Bench: It’s Spring time and the fescue is productive and hot with alkaloids - (Popular Publication)

From the Lab Bench: Is forage quality that complicated? - (Popular Publication)
Aiken, G.E. 2017. From the Lab Bench: Is forage quality that complicated?. Cow Country News. Pgs. 52-53.

From the Lab Bench: Do you manage pastures for maximum gain per animal or gain per acre? - (Popular Publication)
Aiken, G.E. 2017. From the Lab Bench: Do you manage pastures for maximum gain per animal or gain per acre?. Cow Country News. Pg. 52.

Effect of biochanin A on corn grain (Zea Mays) fermentation by bovine rumen amylolytic bacteria - (Peer Reviewed Journal)
Harlow, B.E., Flythe, M.D., Aiken, G.E. 2017. Effect of biochanin A on corn grain (Zea Mays) fermentation by bovine rumen amylolytic bacteria. Journal of Applied Microbiology. 122(4): 870-880.

Ruminal tryptophan-utilizing bacteria degrade ergovaline from tall fescue seed extract - (Peer Reviewed Journal)
Harlow, B.M., Goodman, J.P., Lynn, B., Flythe, M.D., Ji, H., Aiken, G.E. 2017. Ruminal tryptophan-utilizing bacteria degrade ergovaline from tall fescue seed extract. Journal of Animal Science. 95:980-988.

PCB126 modulates fecal microbial fermentation of the dietary fiber inulin - (Abstract Only)
Hoffman, J., Flythe, M.D., Henning, B. 2017. PCB126 modulates fecal microbial fermentation of the dietary fiber inulin. Meeting Proceedings. Pg. 47.

From the Lab Bench: Stocker production on tall fescue…It can be done! - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: Stocker production on tall fescue…It can be done!. Cow Country News. Pg. 48.

Micropepsia pineolensis gen. nov., sp. nov., a mildly acidophilic alphaproteobacterium isolated from a poor fen, and proposal of Micropepsiaceae fam. nov. within Micropepsiales ord. nov. - (Peer Reviewed Journal)
Harbison, A.B., Price, L., Flythe, M.D., Bräuer, S.L. 2017. Micropepsia pineolensis gen. nov., sp. nov., a mildly acidophilic alphaproteobacterium isolated from a poor fen, and proposal of Micropepsiaceae fam. nov. within Micropepsiales ord. nov. International Journal of Systematic and Evolutionary Microbiology. 67:839-844.

Hydrolysis of model cellulose films by cellulosomes: Extension of quartz crystal microbalance techniques to multienzymatic complexes - (Peer Reviewed Journal)
Zhou, S., Li, H., Garlapalli, R., Nokes, S.E., Flythe, M.D., Rankin, S.E., Knutson, B.L. 2017. Hydrolysis of model cellulose films by cellulosomes: Extension of quartz crystal microbalance techniques to multienzymatic complexes. Journal of Biotechnology. 241:42-49.

The hidden benefits of red clover - (Proceedings)
Aiken, G.E., Flythe, M.D. 2016. The hidden benefits of red clover. Proceedings of Forage and Grassland Conference. Pg. 7.

Biochanin A, an isoflavone produced by red clover, promotes weight gain of steers grazed in mixed grass pastures and fed dried-distillers' grains - (Peer Reviewed Journal)

Red Clover: A ruminant growth promoter you can grow - (Popular Publication)
Flythe, M.D., Aiken, G.E., Harlow, B.E. 2017. Red Clover: A ruminant growth promoter you can grow. Hay and Forage Grower. Pgs. 30-31.

From the Lab Bench: The fescue belt is cow-calf country - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: The fescue belt is cow-calf country. Cow Country News. Pg. 64.

Vasoactivity and vasoconstriction changes in cattle related to time off toxic endophyte-infected tall fescue - (Peer Reviewed Journal)
Klotz, J.L., Aiken, G.E., Bussard, J.R., Foote, A.P., Harmon, D.L., Goff, B.M., Schrick, F., Strickland, J.R. 2016. Vasoactivity and vasoconstriction changes in cattle related to time off toxic endophyte-infected tall fescue. Toxins. 8:271. doi:10.3390/toxins8100271.

From the lab bench: Mixtures of grasses and legumes for extending the grazing season - (Popular Publication)
Aiken, G.E. 2016. From the lab bench: Mixtures of grasses and legumes for extending the grazing season. Cow Country News. Pgs 70-71.

From the lab bench: Mixtures of grasses and legumes; a good or bad thing? - (Popular Publication)
Aiken, G.E. 2016. From the lab bench: Mixtures of grasses and legumes; a good or bad thing?. Cow Country News. Pgs. 70-71.

Effects of spent craft brewers’ yeast on fermentation and methane production by rumen microorganisms - (Peer Reviewed Journal)
Pszczolkowski, V.L., Bryant, R.W., Harlow, B.E., Aiken, G.E., Martin, L.J., Flythe, M.D. 2016. Effects of spent craft brewers’ yeast on fermentation and methane production by rumen microorganisms. Advances in Microbiology. 6:716-723. http://dx.doi.org/10.4236/aim.2016.69070.

From the Lab Bench: A tribute to Russell Hackley, a true grass farmer - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: A tribute to Russell Hackley, a true grass farmer. Cow Country News. Pgs. 68-69.

Phenolic profiles and polyphenol oxidase (PPO) gene expression of red clover (Trifolium pratense) selected for decreased postharvest browning - (Peer Reviewed Journal)
Kagan, I., Dinkins, R.D., Taylor, N.L. 2016. Phenolic profiles and polyphenol oxidase (PPO) gene expression of red clover (Trifolium pratense) selected for decreased postharvest browning. American Journal of Plant Sciences. 7:1478-1489.

Phytochemical alternatives to antibiotic growth promoters: Ruminant nitrogen efficiency at the nexus of energy, food, water and health - (Abstract Only)

Degradation of spent craft brewer’s yeast by caprine rumen hyper ammonia-producing bacteria - (Peer Reviewed Journal)
Harlow, B., Bryant, R., Cohen, S., O'Connell, S., Flythe, M.D. 2016. Degradation of spent craft brewer’s yeast by caprine rumen hyper ammonia-producing bacteria. Letters in Applied Microbiology. 63(4):307-312. doi:10.1111/lam.12623.

Ergovaline, an endophytic alkaloid. 1. Animal physiology and metabolism - (Review Article)
Klotz, J.L., Nicol, A.M. 2016. Ergovaline, an endophytic alkaloid. 1. Animal physiology and metabolism. Animal Production Science. http://dx.doi.org/10.1071/AN14962.

Ergovaline, an endophytic alkaloid. 2. Intake and impact on animal production, with reference to New Zealand - (Review Article)
Nicol, A.M., Klotz, J.L. 2016. Ergovaline, an endophytic alkaloid. 2. Intake and impact on animal production, with reference to New Zealand. Animal Production Science. http://dx.doi.org/10.1071/AN14963.

From the Lab Bench: The crazy notion of supplemental feeding of cattle grazing lush green forage - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: The crazy notion of supplemental feeding of cattle grazing lush green forage. Cow Country News. Pgs. 36-37.

From the Lab Bench: Soy Hulls: A Special Feed for Cattle on Toxic Endophyte Fescue Pasture - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: Soy Hulls: A Special Feed for Cattle on Toxic Endophyte Fescue Pasture. Cow Country News. Pgs 55-56.

Novel endophyte provides fescue toxicosis relief - (Popular Publication)
Aiken, G.E. 2015. Novel endophyte provides fescue toxicosis relief. Hay and Forage Grower. Pgs. 24 & 25.

Feeding soyhulls on toxic tall fescue is option for stockers - (Popular Publication)
Aiken, G.E. 2016. Feeding soyhulls on toxic tall fescue is option for stockers. Progressive Cattlemen. Pgs. 1-5.

Red clover: An alternative to antibiotic growth promoters? - (Popular Publication)
Flythe, M.D., Aiken, G.E. 2016. Red clover: An alternative to antibiotic growth promoters?. Progressive Cattlemen. Pgs. 36-38.

From the Lab Bench: Know your alternative feed - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: Know your alternative feed. Cow Country News. Pgs. 52-53.

From the Lab Bench: By- or Co-Product Feeds…What’s the Difference? - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: By- or Co-Product Feeds…What’s the Difference?. Cow Country News. Pgs. 52-53.

From the Lab Bench: Differences in annual and perennial grasses in meeting cattle production goals - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: Differences in annual and perennial grasses in meeting cattle production goals. Cow Country News. Pgs 44-45.

From the Lab Bench: The invisible crystal ball - (Popular Publication)
Aiken, G.E. 2016. From the Lab Bench: The invisible crystal ball. Cow Country News. Pgs 42-43.

Interaction between a tannin-containing legume and endophyte-infected tall fescue seed on lambs’ feeding behavior and physiology - (Peer Reviewed Journal)
Villalba, J.J., Spackman, C., Goff, B.M., Klotz, J.L., Griggs, T., MacAdam, J.W. 2015. Interaction between a tannin-containing legume and endophyte-infected tall fescue seed on lambs’ feeding behavior and physiology. Journal of Animal Science. 94:845-857. doi: 10.2527/jas.2015-9790.

Interaction of isoflavones and endophyte-infected tall fescue seed extract on vasoactivity of bovine mesenteric vasculature - (Peer Reviewed Journal)
Jia, Y., Harmon, D.L., Flythe, M.D., Klotz, J.L. 2015. Interaction of isoflavones and endophyte-infected tall fescue seed extract on vasoactivity of bovine mesenteric vasculature. Frontiers in Nutrition: Animal Nutrition and Metabolism. doi: 10.3389/fnut.2015.00032.

From the lab bench: A systematic approach to grazing cattle - (Popular Publication)
Aiken, G.E. 2015. From the lab bench: A systematic approach to grazing cattle. Cow Country News. Pg. 76.

From the lab bench: Overcoming limitations of bermudagrass in Kentucky - (Popular Publication)
Aiken, G.E. 2015. From the lab bench: Overcoming limitations of bermudagrass in Kentucky. Cow Country News. Pgs. 74-75.

The effects of steroid implant and dietary soybean hulls on estrogenic activity of sera of steers grazing toxic endophyte-infected tall fescue pasture - (Peer Reviewed Journal)
Shappell, N.W., Flythe, M.D., Aiken, G.E. 2015. The effects of steroid implant and dietary soybean hulls on estrogenic activity of sera of steers grazing toxic endophyte-infected tall fescue pasture. Frontiers in Veterinary Science. DOI: 10.3389/fvets.2015.00030.

From the Lab Bench: A special use for warm-season grasses - (Popular Publication)
Aiken, G.E. 2015. From the Lab Bench: A special use for warm-season grasses. Cow Country News. Pg. 68.

From the Lab Bench: Plant secondary metabolites: The good and the bad. - (Popular Publication)
Aiken, G.E. 2015. From the Lab Bench: Plant secondary metabolites: The good and the bad. . Cow Country News. Pg. 68.

Effect of starch source (corn, oats or wheat) and concentration on fermentation by equine fecal microbiota in vitro - (Peer Reviewed Journal)
Harlow, B.E., Donley, T.M., Lawrence, L.M., Flythe, M.D. 2015. Effect of starch source (corn, oats or wheat) and concentration on fermentation by equine fecal microbiota in vitro. Journal of Applied Microbiology. doi: 10.1111/jam.12927.

Sample handling factors affecting the enumeration of lactobacilli and cellulolytic bacteria in equine feces - (Peer Reviewed Journal)
Harlow, B.E., Lawrence, L.M., Flythe, M.D. 2015. Sample handling factors affecting the enumeration of lactobacilli and cellulolytic bacteria in equine feces. Journal of Equine Veterinary Science. 35(9):744-748. doi: http://dx.doi.org/10.1016/j.jevs.2015.07.011.

Activities and effects of ergot alkaloids on livestock physiology and production - (Review Article)
Klotz, J.L. 2015. Activities and effects of ergot alkaloids on livestock physiology and production. Toxins. 7:2801-2821. doi:10.3390/toxins7082801.

Physiologic effects of ergot alkaloids: What happens when excretion does not equal consumption? - (Review Article)
Klotz, J.L. 2015. Physiologic effects of ergot alkaloids: What happens when excretion does not equal consumption? Journal of Animal Science. 93:5512-5521.

From the Lab Bench: Should you plant a non-toxic endophyte tall fescue? - (Popular Publication)
Aiken, G.E. 2015. From the Lab Bench: Should you plant a non-toxic endophyte tall fescue? Cow Country News. p. 26.

Forage yield and nutritive value of turf bermudagrasses managed to simulate a horse pasture management scheme in the U.S. Upper Transition Zone - (Peer Reviewed Journal)
Aiken, G.E., Williams, D.W. 2015. Forage yield and nutritive value of turf bermudagrasses managed to simulate a horse pasture management scheme in the U.S. Upper Transition Zone. Crop, Forage & Turfgrass Management. doi: 10.2134/cftm2015.0139.

Grazing management options in meeting objectives of grazing experiments - (Peer Reviewed Journal)
Aiken, G.E. 2016. Grazing management options in meeting objectives of grazing experiments. Professional Animal Scientist. 32:1-9.

Potential rumen, vascular and production benefits of isoflavones in ruminant diets - (Abstract Only)
Flythe, M.D., Aiken, G.E., Kagan, I. 2015. Potential rumen, vascular and production benefits of isoflavones in ruminant diets. Meeting Proceedings. 6:5 http://dx.doi.org/10.4172/2157-7579.C1.008.

From the Lab Bench: Why Control Tall Fescue Seed Heads? - (Popular Publication)
Aiken, G.E. 2015. From the Lab Bench: Why Control Tall Fescue Seed Heads?. Cow Country News. Pgs. 34-35.

Switchgrass (Panicum virgatum) fermentation by Clostridium thermocellum and Clostridium beijerinckii sequential culture: effect of feedstock particle size on gas production - (Peer Reviewed Journal)
Flythe, M.D., Elia, N.M., Schmal, M.B., Nokes, S.E. 2015. Switchgrass (Panicum virgatum) fermentation by Clostridium thermocellum and Clostridium beijerinckii sequential culture: effect of feedstock particle size on gas production. Advances in Microbiology. 5:311-316.

Exogenous lactobacilli mitigate microbial changes associated with grain fermentation in vitro - (Abstract Only)
Harlow, B.E., Lawrence, L.M., Kagan, I., Harris, P., Flythe, M.D. 2015. Exogenous lactobacilli mitigate microbial changes associated with grain fermentation in vitro. Proceedings of the Equine Science Society. 35:400-417.

Effect of inulin chain length on fermentation by equine fecal bacteria and Streptococcus bovis in vitro - (Abstract Only)
Harlow, B.E., Lawrence, L.M., Kagan, I., Flythe, M.D. 2015. Effect of inulin chain length on fermentation by equine fecal bacteria and Streptococcus bovis in vitro. Proceedings of the Equine Science Society. 35:425.

Effect of storage time and temperature of equine feces on the subsequent enumeration of lactobacilli and cellulolytic bacteria - (Abstract Only)
Harlow, B.E., Lawrence, L.M., Flythe, M.D. 2016. Effect of storage time and temperature of equine feces on the subsequent enumeration of lactobacilli and cellulolytic bacteria. Proceedings of the Equine Science Society. Pgs. 411-412.

Changes in fecal lactobacilli after a concentrate meal - (Abstract Only)
Pyles, M.B., Lawrence, L.M., Flythe, M.D. 2015. Changes in fecal lactobacilli after a concentrate meal. Proceedings of the Equine Science Society. Pg. 412.

The difficulties in reviewing ergovaline - (Proceedings)

From the Lab Bench: Season Changes in Ergot Alkaloid Concentrations of Toxic Tall Fescue - (Popular Publication)
Aiken, G.E. 2015. From the Lab Bench: Season Changes in Ergot Alkaloid Concentrations of Toxic Tall Fescue. Cow Country News. Pgs. 29-30.

From the Lab Bench: Can cattle meet their nutrient needs on toxic tall fescue pasture? - (Popular Publication)
Aiken, G.E. 2015. From the Lab Bench: Can cattle meet their nutrient needs on toxic tall fescue pasture?. Cow Country News. Pgs. 48-50.

Amylolytic bacteria in the equine hindgut: Effect of starch source and a case for antimicrobial-mediated competition - (Abstract Only)
Harlow, B.E., Lawrence, L.M., Flythe, M.D. 2015. Amylolytic bacteria in the equine hindgut: Effect of starch source and a case for antimicrobial-mediated competition. Congress on Gastrointestinal Function. Pgs. 45-46.

Interaction between a tannin-containing legume and endophyte-infected tall fescue seed on lambs’ feeding behavior and physiology - (Abstract Only)

Effect of grazing seedhead-suppressed tall fescue pasture on the vasoactivity of serotonin receptors - (Abstract Only)

Hop acid-rich spent craft brewer's yeast modulates gut bacterial growth - (Abstract Only)
Bryant, R.W., Cohen, S., Flythe, M.D., Harlow, B.E., O'Connell, S.P., Truitt, R.J., Martin, L.J. 2015. Hop acid-rich spent craft brewer's yeast modulates gut bacterial growth. Meeting Proceedings. Pg. 2.

Recent investigations of ergot alkaloids incorporated into plant and/or animal systems - (Review Article)
Klotz, J.L., Smith, D.L. 2015. Recent investigations of ergot alkaloids incorporated into plant and/or animal systems. Frontiers in Chemistry: Chemical Biology. 3:23. doi:10.3389/fchem.2015.00023.

Hops (Humulus lupulus) ß-acid as an inhibitor of caprine rumen hyper-ammonia-producing bacteria in vitro - (Peer Reviewed Journal)
Flythe, M.D., Aiken, G.E., Gellin, G.L., Klotz, J.L., Goff, B.M., Andries, K. 2015. Hops (Humulus lupulus) ß-acid as an inhibitor of caprine rumen hyper-ammonia-producing bacteria in vitro. Agriculture, Food and Analytical Bacteriology. 5:29-36.

From the Lab Bench: Why the heat and cold stresses on tall fescue pasture - (Popular Publication)
Aiken, G.E. 2015. From the Lab Bench: Why the heat and cold stresses on tall fescue pasture. Cow Country News. Pg. 48 http://issuu.com/cowcountrynews/docs/ccnmarch2015/49?e=6680951/11554905.

Forage nutritive value and steer responses to grazing intensity and seed-head suppression of endophyte-free tall fescue in mixed pastures - (Peer Reviewed Journal)
Goff, B.M., Aiken, G.E., Witt, W.W., Burch, P.L., Schrick, F.N. 2015. Forage nutritive value and steer responses to grazing intensity and seed-head suppression of endophyte-free tall fescue in mixed pastures. Professional Animal Scientist. 31(2):120-129. DOI: 10.15232/pas.2014-01366.

Vasoconstrictive responses of the testicular and caudal arteries in bulls exposed to ergot alkaloids from tall fescue - (Peer Reviewed Journal)
Aiken, G.E., Burns, M.G., Stowe, H.M., Andrae, J.G., Pratt, S.L. 2015. Vasoconstrictive responses of the testicular and caudal arteries in bulls exposed to ergot alkaloids from tall fescue. Professional Animal Scientist. 31:130-136. doi:10.15232\pas.2014-01373.

Cases of ergotism in livestock and associated ergot alkaloid concentrations in feed - (Peer Reviewed Journal)
Craig, A., Klotz, J.L., Duringer, J.M. 2015. Cases of ergotism in livestock and associated ergot alkaloid concentrations in feed. Frontiers in Chemistry: Chemical Biology. 3:8. doi:10.3389/fchem.2015.00008.

Transferring research data to producers - (Popular Publication)
Aiken, G.E. 2015. Transferring research data to producers. Cow Country News. Pgs. 48-50.

Tall fescue seed extraction and partial purification of ergot alkaloids - (Peer Reviewed Journal)
Huihua, J., Fannin, N., Klotz, J.L., Bush, L.P. 2014. Tall fescue seed extraction and partial purification of ergot alkaloids. Frontiers in Chemistry: Chemical Biology. 2:110.

Physiologic effects of ergot alkaloids: What happens when excretion does not equal absorption? - (Abstract Only)
Klotz, J.L. 2015. Physiologic effects of ergot alkaloids: What happens when excretion does not equal absorption?. American Society of Animal Science Southern Section Meeting. Pg. 92.

Vasoconstrictive responses by the carotid and auricular arteries in goats to ergot alkaloid exposure - (Peer Reviewed Journal)
Aiken, G.E., Flythe, M.D. 2014. Vasoconstrictive responses by the carotid and auricular arteries in goats to ergot alkaloid exposure. Frontiers in Chemistry. 2:101. DOI: 10.3389/fchem.2014.00101.

Transcriptome response in different tissues of Lolium arundinaceum to the fungal endophyte Epichloe coenophiala - (Abstract Only)

Bulls grazing Kentucky 31 tall fescue exhibit impaired growth, semen quality, and decreased semen freezing potential - (Peer Reviewed Journal)
Pratt, S.L., Stowe, H.M., Whitlock, B.K., Strickland, L., Miller, M., Calcatera, S.M., Dimmick, M.D., Aiken, G.E., Schrick, F.N., Long, N.M., Duckett, S.K., Andrae, J.G. 2015. Bulls grazing Kentucky 31 tall fescue exhibit impaired growth, semen quality, and decreased semen freezing potential. Theriogenology. 83:408-414.

Development of a methodology to measure the effect of ergot alkaloids on forestomach motility using real-time wireless telemetry - (Peer Reviewed Journal)
Egert, A.M., Klotz, J.L., McLeod, K.R., Harmon, D.L. 2014. Development of a methodology to measure the effect of ergot alkaloids on forestomach motility using real-time wireless telemetry. Frontiers in Chemistry: Chemical Biology. 2:90.

Timing and rate of Chaparral treatment affects tall fescue seedhead development and pasture plant densities - (Peer Reviewed Journal)
Goff, B.M., Aiken, G.E., Witt, W.W., Williamson, J.A., Flynn, E.S., Burch, P.L. 2014. Timing and rate of Chaparral treatment affects tall fescue seedhead development and pasture plant densities. Forage and Grazinglands. DOI: 10.2134/FG-2013-0001-RS.

Effect of intake on fasting heat production, respiratory quotient and plasma metabolites measured using the washed rumen technique - (Peer Reviewed Journal)
Kim, D., McLeod, K.R., Koontz, A.F., Foote, A.P., Klotz, J.L., Harmon, D.L. 2015. Effect of intake on fasting heat production, respiratory quotient and plasma metabolites measured using the washed rumen technique. Animal. 9:58-66.

Effect of fescue toxicosis on whole body energy and nitrogen balance, in situ degradation and ruminal passage rates in Holstein steers - (Peer Reviewed Journal)
Koontz, A.F., Kim, D., Mc Leod, K.R., Klotz, J.L., Harmon, D.L. 2014. Effect of fescue toxicosis on whole body energy and nitrogen balance, in situ degradation and ruminal passage rates in Holstein steers. Animal Production Science. 55:988-998. doi.org/10.1071/AN14037.

Inhibition of fructan-fermenting equine fecal bacteria and Streptococcus bovis by hops (Humulus lupulus L.) ß-acid - (Peer Reviewed Journal)
Harlow, B.E., Lawrence, L.M., Kagan, I., Flythe, M.D. 2014. Inhibition of fructan-fermenting equine fecal bacteria and Streptococcus bovis by hops (Humulus lupulus L.) ß-acid. Journal of Applied Microbiology. 117:329-339.

Isolating and using sections of bovine mesenteric artery and vein as a bioassay to test for vasoactivity in the small intestine - (Peer Reviewed Journal)
Klotz, J.L., Barnes, A.J. 2014. Isolating and using sections of bovine mesenteric artery and vein as a bioassay to test for vasoactivity in the small intestine. Journal of Visualized Experiments. 92:e52020.

Pretreatment of lignocellulosic biomass using Fenton chemistry - (Peer Reviewed Journal)
Kato, D., Elia, N.M., Flythe, M.D., Lynn, B.C. 2014. Pretreatment of lignocellulosic biomass using Fenton chemistry. Bioresource Technology. 162:273-278.

Effect of acute exposure to ergot alkaloids on short-chain fatty acid absorption and barrier function of isolated bovine ruminal epithelium - (Abstract Only)
Foote, A.P., Penner, G.P., Walpole, M.E., Klotz, J.L., Bush, L.P., Harmon, D.L. 2014. Effect of acute exposure to ergot alkaloids on short-chain fatty acid absorption and barrier function of isolated bovine ruminal epithelium. Joint Meeting of the ADSA, AMSA, ASAS and PSA. 92(E.Suppl.2):874.

Effects of ergot alkaloid exposure on serotonin receptor mRNA in the smooth muscle of the bovine gastrointestinal tract - (Abstract Only)
Klotz, J.L., Kim, D., Foote, A.P., Harmon, D.L. 2014. Effects of ergot alkaloid exposure on serotonin receptor mRNA in the smooth muscle of the bovine gastrointestinal tract. Joint Meeting of the ADSA, AMSA, ASAS and PSA. 92(E.Suppl.2):890.

Analysis of rumen motility patterns using a wireless telemetry system to characterize bovine reticuloruminal contractions - (Abstract Only)
Egert, A.M., Mcleod, K.R., Klotz, J.L., Harmon, D.L. 2014. Analysis of rumen motility patterns using a wireless telemetry system to characterize bovine reticuloruminal contractions. Joint Meeting of the ADSA, AMSA, ASAS and PSA. 92(E.Suppl.2):804.

Effects of fescue toxicosis induced by endophyte-infected tall fescue seed on forestomach epithelial gene expression in Angus steers - (Abstract Only)
Kim, D., Klotz, J.L., Harmon, D.L. 2014. Effects of fescue toxicosis induced by endophyte-infected tall fescue seed on forestomach epithelial gene expression in Angus steers. Joint Meeting of the ADSA, AMSA, ASAS and PSA. 92(E.Suppl.2):898.

Acute exposure to ergot alkaloids from endophyte-infected tall fescue does not alter absorptive or barrier function of the isolated ruminal epithelium - (Peer Reviewed Journal)
Foote, A.P., Penner, G.P., Walpole, M.E., Klotz, J.L., Brown, K.R., Bush, L.P., Harmon, D.L. 2014. Acute exposure to ergot alkaloids from endophyte-infected tall fescue does not alter absorptive or barrier function of the isolated ruminal epithelium. Animal. 8(7):1106-1112.

Bovine lateral saphenous veins exposed to ergopeptine alkaloids do not relax - (Peer Reviewed Journal)
Pesqueira, A., Harmon, D.L., Branco, A.F., Klotz, J.L. 2014. Bovine lateral saphenous veins exposed to ergopeptine alkaloids do not relax. Journal of Animal Science. 92:1213-1218.

Can we graze 300+ days? - (Popular Publication)
Aiken, G.E., Lehmkuhler, J. 2014. Can we graze 300+ days?. Cow Country News. p. 20-21.

Dietary exposure to ergot alkaloids decreases contractility of bovine mesenteric vasculature - (Peer Reviewed Journal)
Egert, A.M., Kim, D., Schrick, F., Harmon, D.L., Klotz, J.L. 2014. Dietary exposure to ergot alkaloids decreases contractility of bovine mesenteric vasculature. Journal of Animal Science. 92:1768-1779.

Effects of antibiotics on the gut microbes - (Abstract Only)
Lawrence, L.M., Harlow, B.E., Flythe, M.D. 2014. Effects of antibiotics on the gut microbes. Nutrition Conference Proceedings. Pg. 7.

Fermentation characteristics and nutritive value of low moisture silage made from mature bermudagrass (C. dactylon) and switchgrass (P. virgatum) in mixture with alfalfa (M. sativa) or treated with urea and plantain (Musa AAB - (Peer Reviewed Journal)
Marfo-Ahenkora, E., Aiken, G.E., Flythe, M.D. 2014. Fermentation characteristics and nutritive value of low moisture silage made from mature bermudagrass (C. dactylon) and switchgrass (P. virgatum) in mixture with alfalfa (M. sativa) or treated with urea and plantain (Musa AAB). Ghana Journal of Agricultural Science. 47(1):15-29.

Thin-layer chromatographic (TLC) separations and bioassays of plant extracts to identify antimicrobial compounds - (Peer Reviewed Journal)
Kagan, I., Flythe, M.D. 2014. Thin-layer chromatographic (TLC) separations and bioassays of plant extracts to identify antimicrobial compounds. Journal of Visualized Experiments. 85:e51411. doi:10.3791/51411.

Ergot alkaloids from endophyte-infected tall fescue decrease reticulo-ruminal epithelial blood flow and volatile fatty acid absorption from a washed reticulorumen - (Peer Reviewed Journal)
Foote, A.P., Kristensen, N.B., Klotz, J.L., Kim, D., Koontz, A.F., Mcleod, K.R., Bush, L.P., Schrick, F.N., Harmon, D.L. 2013. Ergot alkaloids from endophyte-infected tall fescue decrease reticulo-ruminal epithelial blood flow and volatile fatty acid absorption from a washed reticulorumen. Journal of Animal Science. 91:5366-5378.

Effects of toxicosis on bull growth, semen characteristics and breeding soundness evaluation - (Peer Reviewed Journal)
Stowe, H.M., Millar, M., Burns, M.G., Calcatera, S.M., Andrae, J.G., Aiken, G.E., Schrick, F.N., Cushing, T., Bridges, W.C., Pratt, S.L. 2014. Effects of toxicosis on bull growth, semen characteristics and breeding soundness evaluation. Journal of Animal Science. 91:3686-3692.

Diarrhea-associated pathogens, lactobacilli and cellulolytic bacteria in equine feces: responses to antibiotic challenge - (Peer Reviewed Journal)
Harlow, B.E., Lawrence, L.M., Flythe, M.D. 2013. Diarrhea-associated pathogens, lactobacilli and cellulolytic bacteria in equine feces: responses to antibiotic challenge. Veterinary Microbiology. 166:225-232.

Switchgrass (Panicum virgatum) fermentation by sequential culture of Clostridium thermocellum and Clostridium beijerinckii: effect of particle size on gas production - (Abstract Only)
Elia, N.M., Flythe, M.D., Nokes, S.E. 2013. Switchgrass (Panicum virgatum) fermentation by sequential culture of Clostridium thermocellum and Clostridium beijerinckii: effect of particle size on gas production. American Society for Microbiology General Meeting. 207:2476.

Antimicrobial effects of hops (Humulus lupulus) beta-acid on the growth and ammonia production of caprine ruminal hyper-ammonia-producing bacteria - (Abstract Only)
Flythe, M.D., Klotz, J.L., Gellin, G.L., Aiken, G.E. 2013. Antimicrobial effects of hops (Humulus lupulus) beta-acid on the growth and ammonia production of caprine ruminal hyper-ammonia-producing bacteria. American Society for Microbiology General Meeting. Pg. 22.

Evaluation of PCR-DGGE as a method to recapitulate host phylogeny by fecal microbial community fingerprint - (Abstract Only)
Flythe, M.D., Lawrence, L.M., Strasinger, L.A., Fisher, T.M., Gellin, G.L., Harlow, B.E. 2013. Evaluation of PCR-DGGE as a method to recapitulate host phylogeny by fecal microbial community fingerprint. Congress on Gastrointestinal Function. 67-68.

Dietary exposure to ergot alkaloids decreases contractility of bovine mesenteric vasculature - (Abstract Only)
Egert, A.M., Kim, D., Harmon, D.L., Klotz, J.L. 2013. Dietary exposure to ergot alkaloids decreases contractility of bovine mesenteric vasculature. J. Anim. Sci. Vol. 91, E-Suppl. 2:214.

Bovine lateral saphenous veins exposed to ergopeptine alkaloids do not relax - (Abstract Only)
Klotz, J.L., Pesqueira, A., Branco, A.F., Harmon, D.L. 2013. Bovine lateral saphenous veins exposed to ergopeptine alkaloids do not relax. J. Anim. Sci. Vol. 91, E-Suppl. 2:92.

Effect of endophyte-infected tall fescue seed on ruminal metabolism and physiology in Angus steers - (Abstract Only)
Kim, D.H., Klotz, J.L., Harmon, D.L. 2013. Effect of endophyte-infected tall fescue seed on ruminal metabolism and physiology in Angus steers. J. Anim. Sci. Vo. 91, E-Suppl. 2:522-523.

Equine palmar artery, palmar vein and uterine artery express different populations of vasoactive biogenic amine receptors - (Abstract Only)
Hestad, D.A., Mcdowell, K.J., Klotz, J.L. 2013. Equine palmar artery, palmar vein and uterine artery express different populations of vasoactive biogenic amine receptors. J. Anim. Sci. Vol. 91, E-Suppl. 2:566.

Effect of fescue toxicosis on ruminal kinetics, nitrogen and energy balance in Holstein steers - (Abstract Only)
Koontz, A.F., Foote, A.P., Kim, D.H., Klotz, J.L., Mcleod, K.R., Harmon, D.L. 2013. Effect of fescue toxicosis on ruminal kinetics, nitrogen and energy balance in Holstein steers. J. Anim. Sci. Vol. 91, E-Suppl. 2:92.

Effect of fescue toxicosis on nitrogen and energy balance in Holstein steers - (Abstract Only)
Koontz, A.F., Kim, D.H., Foote, A.P., Bush, L.P., Klotz, J.L., Mcleod, K.R., Harmon, D.L. 2013. Effect of fescue toxicosis on nitrogen and energy balance in Holstein steers. In: Energy and Protein Metabolism and Nutrition in Sustainable Animal Production. 134:67-68.

Number of beef cows exposed toxic tall fescue: small or large? - (Proceedings)

Post-graze recovery of blood circulation in steers exhibiting fescue toxicosis as influenced by seed head suppression - (Proceedings)

Steer and tall fescue pasture responses to grazing intensity and chemical seedhead suppression - (Proceedings)

Alteration of basal metabolic rate in Holstein steers during fescue toxicosis - (Experiment Station)
Koontz, A.F., Foote, A.P., Kim, D., Bush, L.P., Klotz, J.L., Mcleod, K.R., Harmon, D.L. 2014. Alteration of basal metabolic rate in Holstein steers during fescue toxicosis. Kentucky Beef Report. pgs. 7-9.

Evaluation of a rapid determination of heat production and respiratory quotient in Holstein steers using the washing rumen technique - (Experiment Station)
Kim, D., Mcleod, K.R., Klotz, J.L., Koontz, A.F., Foote, A.P., Harmon, D.L. 2014. Evaluation of a rapid determination of heat production and respiratory quotient in Holstein steers using the washing rumen technique. Kentucky Beef Report. pgs. 26-28.

Last Modified: 10/17/2017
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