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Tytuł:
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Ethanol-Soluble Carbohydrates of Cool-Season Grasses: Prediction of Concentration by Near-Infrared Reflectance Spectroscopy (NIRS) and Evaluation of Effects of Cultivar and Management.
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Autorzy:
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Kramer KJ; Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY.
Kagan IA; US Department of Agriculture, Agricultural Research Service, Forage-Animal Production Research Unit, Lexington, KY. Electronic address: .
Lawrence LM; Department of Animal and Food Sciences, University of Kentucky, Lexington, KY.
Smith SR; Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY.
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Źródło:
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Journal of equine veterinary science [J Equine Vet Sci] 2021 Jun; Vol. 101, pp. 103421. Date of Electronic Publication: 2021 Feb 19.
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Typ publikacji:
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Journal Article; Research Support, U.S. Gov't, Non-P.H.S.
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Język:
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English
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Imprint Name(s):
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Publication: 2003- : New York : Elsevier
Original Publication: [Wildomar, CA : William E. Jones, c1981-
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MeSH Terms:
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Carbohydrates*
Ethanol*
Animals ; Kentucky ; Seasons ; Spectroscopy, Near-Infrared/veterinary
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Contributed Indexing:
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Keywords: Cool-season grasses; Diurnal; Ethanol-soluble carbohydrates; Near-infrared reflectance spectroscopy; Phenol-sulfuric acid assay
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Substance Nomenclature:
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0 (Carbohydrates)
3K9958V90M (Ethanol)
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Entry Date(s):
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Date Created: 20210517 Date Completed: 20210709 Latest Revision: 20210709
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Update Code:
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20240105
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DOI:
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10.1016/j.jevs.2021.103421
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PMID:
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33993929
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Ethanol-soluble carbohydrates (ESCs) of cool-season grasses include mono- and disaccharides and sometimes short-chain fructans, which may exacerbate the risk of pasture-associated laminitis. A calibration for prediction of ESC concentrations by near-infrared reflectance spectroscopy (NIRS) was developed from 323 samples of four cool-season grass species (orchardgrass, Kentucky bluegrass, tall fescue, and perennial ryegrass) across 10 cultivars collected in central Kentucky in the morning and afternoon over two growing seasons. The calibration, which had accuracy above 95%, was used to predict ESC concentrations of 1,532 samples from the second growing season. ESC concentrations increased in the afternoon compared to the morning across all cultivars. In the majority of samples, ESC concentrations were not affected by nitrogen application to plots. Use of NIRS has the potential to evaluate management and cultivar effects on ESC concentrations in cool-season grass pastures.
(Published by Elsevier Inc.)
