Results 31 to 40 of about 1,790 (189)

Rumen and Serum Metabolomes in Response to Endophyte-Infected Tall Fescue Seed and Isoflavone Supplementation in Beef Steers

Toxins, 2020
Fescue toxicosis impacts beef cattle production via reductions in weight gain and muscle development. Isoflavone supplementation has displayed potential for mitigating these effects.
Taylor B. Ault-Seay, Emily A. Melchior-Tiffany, Brooke A. Clemmons, Juan F. Cordero, Gary E. Bates, Michael D. Flythe, James L. Klotz, Huihua Ji, Jack P. Goodman, Kyle J. McLean, Phillip R. Myer   +10 more
doaj   +1 more source

Effect of Quebracho Tannin (Schinopsis quebracho-colorado (Schltdl.) F.A. Barkley and T. Meyer) on Silage Nutritive Value, Ergovaline Concentration, and Fermentation Parameters of Tall Fescue (Schedonorus arundinaceus (Shreb.) Dumort) with Two Dry-Matter Levels

Agronomy, 2023
Tall fescue (Schedonorus arundinaceus (Shreb.) Dumort) is a cool-season forage grown in the mid-south United States of America that has the potential for spring silage. Ergovaline produced by the fungal endophyte Neotyphodium coenophialum is preserved in
Ally J. Grote, Christine C. Nieman, Ivan R. Thomas Jr., Kenneth P. Coffey, James P. Muir, James L. Klotz   +5 more
doaj   +1 more source

Environmental conditions and host plant origin override endophyte effects on invertebrate communities [PDF]

, 2011
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Faeth, Stanley H., Helander, Marjo, Hyvönen, Terho, Saikkonen, Kari, Vesterlund, Salla-Riikka   +4 more
core   +1 more source

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, 2015
Soybean hulls (SBHs) have been fed to cattle pasturing on endophyte-infected tall fescue in attempts to increase rate of gain. Literature reports indicated some symptoms associated with fescue toxicosis were ameliorated by the use of steroidal implants ...
Nancy W. Shappell, Michael D. Flythe, Glen Eris Aiken   +2 more
doaj   +1 more source

Isoflavone Containing Legumes Mitigate Ergot Alkaloid-Induced Vasoconstriction in Goats (Capra hircus)

Animals, 2022
Ergot alkaloids produced by a fungal endophyte that infects tall fescue (Lolium arundinaceum; (E+ TF) can induce constriction of the vasculature in ruminants, resulting in “fescue toxicosis”.
Brittany E. Harlow, Michael D. Flythe, Jack P. Goodman, Huihua Ji, Glen E. Aiken   +4 more
doaj   +1 more source

Variability of Ergovaline and Total Ergot Alkaloid Expression among Endophytic Tall Fescue Cultivars

Crop Science, Volume 59, Issue 6, Page 2866-2875, November-December 2019., 2019
ABSTRACT Tall fescue (Lolium arundinaceum [Schreb.] Darbysh.) is one of the most widely grown grasses in the United States. Most plants are infected with an endophyte, Epichloë coenophiala Bacon and Schardl. This endophyte produces high concentrations of ergot alkaloids, which cause fescue toxicosis in livestock. The economic losses to the US livestock
S. Leanne Dillard, S. Ray Smith, Dennis W. Hancock   +2 more
wiley   +1 more source

Effects of Tall Fescue Endophyte Type and Dopamine Receptor D2 Genotype on Cow-Calf Performance during Late Gestation and Early Lactation

Toxins, 2021
Grazing endophyte-infected, toxic tall fescue reduces cow/calf production; therefore, this study examines alternate strategies such as use of novel endophyte fescue varieties during late gestation and early lactation or genetic selection of resistant ...
Sarah A. Wilbanks, Susan Maggie Justice, Thomas West, James L. Klotz, John G. Andrae, Susan K. Duckett   +5 more
doaj   +1 more source

Transcriptome Analysis and Differential Expression in Tall Fescue Harboring Different Endophyte Strains in Response to Water Deficit

The Plant Genome, Volume 12, Issue 2, June 2019., 2019
Two tall fescue [Lolium arundinaceum (Schreb.) Darbysh. = Schedonorus arundinaceus (Schreb.) Dumort. = Festuca arundinacea var. arundinacea Schreb.] plant genotypes with an Epichloë coenophiala (Morgan‐Jones & W. Gams) C.W. Bacon & Schardl common toxic endophyte (CTE), one with a nontoxic strain (NTE19) and one with another Epichloë species (FaTG‐4 ...
Randy D. Dinkins, Padmaja Nagabhyru, Carolyn A. Young, Charles P. West, Christopher L. Schardl   +4 more
wiley   +1 more source

Fescue toxicosis and its influence on the rumen microbiome: mitigation of production losses through clover isoflavones

Journal of Applied Animal Research, 2018
This review highlights concerns with endophyte-infected tall fescue as a primary forage base in the southeastern United States and discusses specific physiological and ruminal effects caused by consumption of ergot alkaloids.
Emily A. Melchior, Phillip R. Myer
doaj   +1 more source

Vasoconstrictive Responses by the Carotid and Auricular Arteries in goats to Ergot Alkaloid Exposure

Frontiers in Chemistry, 2014
A fungal endophyte (Neotyphodium coenophialum) infects most plants of ‘Kentucky 31’ tall fescue (Lolium arundinaceum) and produces ergot alkaloids that cause persistent constriction of the vascular system in grazing livestock.
Glen Eris Aiken, Michael F. Flythe
doaj   +1 more source